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License: Apache License 2.0
Automatically exported from code.google.com/p/skipfish
License: Apache License 2.0
=========================================== skipfish - web application security scanner =========================================== http://code.google.com/p/skipfish/ * Written and maintained by: Michal Zalewski <[email protected]> Niels Heinen <[email protected]> Sebastian Roschke <[email protected]> * Copyright 2009 - 2012 Google Inc, rights reserved. * Released under terms and conditions of the Apache License, version 2.0. -------------------- 1. What is skipfish? -------------------- Skipfish is an active web application security reconnaissance tool. It prepares an interactive sitemap for the targeted site by carrying out a recursive crawl and dictionary-based probes. The resulting map is then annotated with the output from a number of active (but hopefully non-disruptive) security checks. The final report generated by the tool is meant to serve as a foundation for professional web application security assessments. ------------------------------------------------- 2. Why should I bother with this particular tool? ------------------------------------------------- A number of commercial and open source tools with analogous functionality is readily available (e.g., Nikto, Nessus); stick to the one that suits you best. That said, skipfish tries to address some of the common problems associated with web security scanners. Specific advantages include: * High performance: 500+ requests per second against responsive Internet targets, 2000+ requests per second on LAN / MAN networks, and 7000+ requests against local instances have been observed, with a very modest CPU, network, and memory footprint. This can be attributed to: * Multiplexing single-thread, fully asynchronous network I/O and data processing model that eliminates memory management, scheduling, and IPC inefficiencies present in some multi-threaded clients. * Advanced HTTP/1.1 features such as range requests, content compression, and keep-alive connections, as well as forced response size limiting, to keep network-level overhead in check. * Smart response caching and advanced server behavior heuristics are used to minimize unnecessary traffic. * Performance-oriented, pure C implementation, including a custom HTTP stack. * Ease of use: skipfish is highly adaptive and reliable. The scanner features: * Heuristic recognition of obscure path- and query-based parameter handling schemes. * Graceful handling of multi-framework sites where certain paths obey completely different semantics, or are subject to different filtering rules. * Automatic wordlist construction based on site content analysis. * Probabilistic scanning features to allow periodic, time-bound assessments of arbitrarily complex sites. * Well-designed security checks: the tool is meant to provide accurate and meaningful results: * Handcrafted dictionaries offer excellent coverage and permit thorough $keyword.$extension testing in a reasonable timeframe. * Three-step differential probes are preferred to signature checks for detecting vulnerabilities. * Ratproxy-style logic is used to spot subtle security problems: cross-site request forgery, cross-site script inclusion, mixed content, issues MIME- and charset mismatches, incorrect caching directives, etc. * Bundled security checks are designed to handle tricky scenarios: stored XSS (path, parameters, headers), blind SQL or XML injection, or blind shell injection. * Snort style content signatures which will highlight server errors, information leaks or potentially dangerous web applications. * Report post-processing drastically reduces the noise caused by any remaining false positives or server gimmicks by identifying repetitive patterns. That said, skipfish is not a silver bullet, and may be unsuitable for certain purposes. For example, it does not satisfy most of the requirements outlined in WASC Web Application Security Scanner Evaluation Criteria (some of them on purpose, some out of necessity); and unlike most other projects of this type, it does not come with an extensive database of known vulnerabilities for banner-type checks. ----------------------------------------------------- 3. Most curious! What specific tests are implemented? ----------------------------------------------------- A rough list of the security checks offered by the tool is outlined below. * High risk flaws (potentially leading to system compromise): * Server-side query injection (including blind vectors, numerical parameters). * Explicit SQL-like syntax in GET or POST parameters. * Server-side shell command injection (including blind vectors). * Server-side XML / XPath injection (including blind vectors). * Format string vulnerabilities. * Integer overflow vulnerabilities. * Locations accepting HTTP PUT. * Medium risk flaws (potentially leading to data compromise): * Stored and reflected XSS vectors in document body (minimal JS XSS support). * Stored and reflected XSS vectors via HTTP redirects. * Stored and reflected XSS vectors via HTTP header splitting. * Directory traversal / LFI / RFI (including constrained vectors). * Assorted file POIs (server-side sources, configs, etc). * Attacker-supplied script and CSS inclusion vectors (stored and reflected). * External untrusted script and CSS inclusion vectors. * Mixed content problems on script and CSS resources (optional). * Password forms submitting from or to non-SSL pages (optional). * Incorrect or missing MIME types on renderables. * Generic MIME types on renderables. * Incorrect or missing charsets on renderables. * Conflicting MIME / charset info on renderables. * Bad caching directives on cookie setting responses. * Low risk issues (limited impact or low specificity): * Directory listing bypass vectors. * Redirection to attacker-supplied URLs (stored and reflected). * Attacker-supplied embedded content (stored and reflected). * External untrusted embedded content. * Mixed content on non-scriptable subresources (optional). * HTTPS -> HTTP submission of HTML forms (optional). * HTTP credentials in URLs. * Expired or not-yet-valid SSL certificates. * HTML forms with no XSRF protection. * Self-signed SSL certificates. * SSL certificate host name mismatches. * Bad caching directives on less sensitive content. * Internal warnings: * Failed resource fetch attempts. * Exceeded crawl limits. * Failed 404 behavior checks. * IPS filtering detected. * Unexpected response variations. * Seemingly misclassified crawl nodes. * Non-specific informational entries: * General SSL certificate information. * Significantly changing HTTP cookies. * Changing Server, Via, or X-... headers. * New 404 signatures. * Resources that cannot be accessed. * Resources requiring HTTP authentication. * Broken links. * Server errors. * All external links not classified otherwise (optional). * All external e-mails (optional). * All external URL redirectors (optional). * Links to unknown protocols. * Form fields that could not be autocompleted. * Password entry forms (for external brute-force). * File upload forms. * Other HTML forms (not classified otherwise). * Numerical file names (for external brute-force). * User-supplied links otherwise rendered on a page. * Incorrect or missing MIME type on less significant content. * Generic MIME type on less significant content. * Incorrect or missing charset on less significant content. * Conflicting MIME / charset information on less significant content. * OGNL-like parameter passing conventions. Along with a list of identified issues, skipfish also provides summary overviews of document types and issue types found; and an interactive sitemap, with nodes discovered through brute-force denoted in a distinctive way. NOTE: As a conscious design decision, skipfish will not redundantly complain about highly non-specific issues, including but not limited to: * Non-httponly or non-secure cookies, * Non-HTTPS or autocomplete-enabled forms, * HTML comments detected on a page, * Filesystem path disclosure in error messages, * Server of framework version disclosure, * Servers supporting TRACE or OPTIONS requests, * Mere presence of certain technologies, such as WebDAV. Most of these aspects are easy to inspect in a report if so desired - for example, all the HTML forms are listed separately, so are new cookies or interesting HTTP headers - and the expectation is that the auditor may opt to make certain design recommendations based on this data where appropriate. That said, these occurrences are not highlighted as a specific security flaw. ----------------------------------------------------------- 4. All right, I want to try it out. What do I need to know? ----------------------------------------------------------- First and foremost, please do not be evil. Use skipfish only against services you own, or have a permission to test. Keep in mind that all types of security testing can be disruptive. Although the scanner is designed not to carry out malicious attacks, it may accidentally interfere with the operations of the site. You must accept the risk, and plan accordingly. Run the scanner against test instances where feasible, and be prepared to deal with the consequences if things go wrong. Also note that the tool is meant to be used by security professionals, and is experimental in nature. It may return false positives or miss obvious security problems - and even when it operates perfectly, it is simply not meant to be a point-and-click application. Do not take its output at face value. Running the tool against vendor-supplied demo sites is not a good way to evaluate it, as they usually approximate vulnerabilities very imperfectly; we made no effort to accommodate these cases. Lastly, the scanner is simply not designed for dealing with rogue and misbehaving HTTP servers - and offers no guarantees of safe (or sane) behavior there. -------------------------- 5. How to run the scanner? -------------------------- To compile it, simply unpack the archive and try make. Chances are, you will need to install libidn first. Next, you need to read the instructions provided in doc/dictionaries.txt to select the right dictionary file and configure it correctly. This step has a profound impact on the quality of scan results later on, so don't skip it. Once you have the dictionary selected, you can use -S to load that dictionary, and -W to specify an initially empty file for any newly learned site-specific keywords (which will come handy in future assessments): $ touch new_dict.wl $ ./skipfish -o output_dir -S existing_dictionary.wl -W new_dict.wl \ http://www.example.com/some/starting/path.txt You can use -W- if you don't want to store auto-learned keywords anywhere. Note that you can provide more than one starting URL if so desired; all of them will be crawled. It is also possible to read URLs from file, using the following syntax: $ ./skipfish [...other options...] @../path/to/url_list.txt The tool will display some helpful stats while the scan is in progress. You can also switch to a list of in-flight HTTP requests by pressing return. In the example above, skipfish will scan the entire www.example.com (including services on other ports, if linked to from the main page), and write a report to output_dir/index.html. You can then view this report with your favorite browser (JavaScript must be enabled; and because of recent file:/// security improvements in certain browsers, you might need to access results over HTTP). The index.html file is static; actual results are stored as a hierarchy of JSON files, suitable for machine processing or different presentation frontends if needs be. In addition, a list of all the discovered URLs will be saved to a single file, pivots.txt, for easy postprocessing. A simple companion script, sfscandiff, can be used to compute a delta for two scans executed against the same target with the same flags. The newer report will be non-destructively annotated by adding red background to all new or changed nodes; and blue background to all new or changed issues found. Some sites may require authentication for which our support is described in doc/authentication.txt. In most cases, you'll be wanting to use the form authentication method which is capable of detecting broken sessions in order to re-authenticate. Once authenticated, certain URLs on the site may log out your session; you can combat this in two ways: by using the -N option, which causes the scanner to reject attempts to set or delete cookies; or with the -X parameter, which prevents matching URLs from being fetched: $ ./skipfish -X /logout/logout.aspx ...other parameters... The -X option is also useful for speeding up your scans by excluding /icons/, /doc/, /manuals/, and other standard, mundane locations along these lines. In general, you can use -X and -I (only spider URLs matching a substring) to limit the scope of a scan any way you like - including restricting it only to a specific protocol and port: $ ./skipfish -I http://example.com:1234/ ...other parameters... A related function, -K, allows you to specify parameter names not to fuzz (useful for applications that put session IDs in the URL, to minimize noise). Another useful scoping option is -D - allowing you to specify additional hosts or domains to consider in-scope for the test. By default, all hosts appearing in the command-line URLs are added to the list - but you can use -D to broaden these rules, for example: $ ./skipfish -D test2.example.com -o output-dir http://test1.example.com/ ...or, for a domain wildcard match, use: $ ./skipfish -D .example.com -o output-dir http://test1.example.com/ In some cases, you do not want to actually crawl a third-party domain, but you trust the owner of that domain enough not to worry about cross-domain content inclusion from that location. To suppress warnings, you can use the -B option, for example: $ ./skipfish -B .google-analytics.com -B .googleapis.com ...other parameters... By default, skipfish sends minimalistic HTTP headers to reduce the amount of data exchanged over the wire; some sites examine User-Agent strings or header ordering to reject unsupported clients, however. In such a case, you can use -b ie, -b ffox, or -b phone to mimic one of the two popular browsers (or iPhone). When it comes to customizing your HTTP requests, you can also use the -H option to insert any additional, non-standard headers; or -F to define a custom mapping between a host and an IP (bypassing the resolver). The latter feature is particularly useful for not-yet-launched or legacy services. Some sites may be too big to scan in a reasonable timeframe. If the site features well-defined tarpits - for example, 100,000 nearly identical user profiles as a part of a social network - these specific locations can be excluded with -X or -S. In other cases, you may need to resort to other settings: -d limits crawl depth to a specified number of subdirectories; -c limits the number of children per directory; -x limits the total number of descendants per crawl tree branch; and -r limits the total number of requests to send in a scan. An interesting option is available for repeated assessments: -p. By specifying a percentage between 1 and 100%, it is possible to tell the crawler to follow fewer than 100% of all links, and try fewer than 100% of all dictionary entries. This - naturally - limits the completeness of a scan, but unlike most other settings, it does so in a balanced, non-deterministic manner. It is extremely useful when you are setting up time-bound, but periodic assessments of your infrastructure. Another related option is -q, which sets the initial random seed for the crawler to a specified value. This can be used to exactly reproduce a previous scan to compare results. Randomness is relied upon most heavily in the -p mode, but also for making a couple of other scan management decisions elsewhere. Some particularly complex (or broken) services may involve a very high number of identical or nearly identical pages. Although these occurrences are by default grayed out in the report, they still use up some screen estate and take a while to process on JavaScript level. In such extreme cases, you may use the -Q option to suppress reporting of duplicate nodes altogether, before the report is written. This may give you a less comprehensive understanding of how the site is organized, but has no impact on test coverage. In certain quick assessments, you might also have no interest in paying any particular attention to the desired functionality of the site - hoping to explore non-linked secrets only. In such a case, you may specify -P to inhibit all HTML parsing. This limits the coverage and takes away the ability for the scanner to learn new keywords by looking at the HTML, but speeds up the test dramatically. Another similarly crippling option that reduces the risk of persistent effects of a scan is -O, which inhibits all form parsing and submission steps. Some sites that handle sensitive user data care about SSL - and about getting it right. Skipfish may optionally assist you in figuring out problematic mixed content or password submission scenarios - use the -M option to enable this. The scanner will complain about situations such as http:// scripts being loaded on https:// pages - but will disregard non-risk scenarios such as images. Likewise, certain pedantic sites may care about cases where caching is restricted on HTTP/1.1 level, but no explicit HTTP/1.0 caching directive is given on specifying -E in the command-line causes skipfish to log all such cases carefully. In some occasions, you want to limit the requests per second to limit the load on the targets server (or possibly bypass DoS protection). The -l flag can be used to set this limit and the value given is the maximum amount of requests per second you want skipfish to perform. Scans typically should not take weeks. In many cases, you probably want to limit the scan duration so that it fits within a certain time window. This can be done with the -k flag, which allows the amount of hours, minutes and seconds to be specified in a H:M:S format. Use of this flag can affect the scan coverage if the scan timeout occurs before testing all pages. Lastly, in some assessments that involve self-contained sites without extensive user content, the auditor may care about any external e-mails or HTTP links seen, even if they have no immediate security impact. Use the -U option to have these logged. Dictionary management is a special topic, and - as mentioned - is covered in more detail in doc/dictionaries.txt. Please read that file before proceeding. Some of the relevant options include -S and -W (covered earlier), -L to suppress auto-learning, -G to limit the keyword guess jar size, -R to drop old dictionary entries, and -Y to inhibit expensive $keyword.$extension fuzzing. Skipfish also features a form auto-completion mechanism in order to maximize scan coverage. The values should be non-malicious, as they are not meant to implement security checks - but rather, to get past input validation logic. You can define additional rules, or override existing ones, with the -T option (-T form_field_name=field_value, e.g. -T login=test123 -T password=test321 - although note that -C and -A are a much better method of logging in). There is also a handful of performance-related options. Use -g to set the maximum number of connections to maintain, globally, to all targets (it is sensible to keep this under 50 or so to avoid overwhelming the TCP/IP stack on your system or on the nearby NAT / firewall devices); and -m to set the per-IP limit (experiment a bit: 2-4 is usually good for localhost, 4-8 for local networks, 10-20 for external targets, 30+ for really lagged or non-keep-alive hosts). You can also use -w to set the I/O timeout (i.e., skipfish will wait only so long for an individual read or write), and -t to set the total request timeout, to account for really slow or really fast sites. Lastly, -f controls the maximum number of consecutive HTTP errors you are willing to see before aborting the scan; and -s sets the maximum length of a response to fetch and parse (longer responses will be truncated). When scanning large, multimedia-heavy sites, you may also want to specify -e. This prevents binary documents from being kept in memory for reporting purposes, and frees up a lot of RAM. Further rate-limiting is available through third-party user mode tools such as trickle, or kernel-level traffic shaping. Oh, and real-time scan statistics can be suppressed with -u. -------------------------------- 6. But seriously, how to run it? -------------------------------- A standard, authenticated scan of a well-designed and self-contained site (warns about all external links, e-mails, mixed content, and caching header issues), including gentle brute-force: $ touch new_dict.wl $ ./skipfish -MEU -S dictionaries/minimal.wl -W new_dict.wl \ -C "AuthCookie=value" -X /logout.aspx -o output_dir \ http://www.example.com/ Five-connection crawl, but no brute-force; pretending to be MSIE and trusting example.com content: $ ./skipfish -m 5 -L -W- -o output_dir -b ie -B example.com \ http://www.example.com/ Heavy brute force only (no HTML link extraction), limited to a single directory and timing out after 5 seconds: $ touch new_dict.wl $ ./skipfish -S dictionaries/complete.wl -W new_dict.wl \ -P -I http://www.example.com/dir1/ -o output_dir -t 5 -I \ http://www.example.com/dir1/ For a short list of all command-line options, try ./skipfish -h. ---------------------------------------------------- 7. How to interpret and address the issues reported? ---------------------------------------------------- Most of the problems reported by skipfish should self-explanatory, assuming you have a good gasp of the fundamentals of web security. If you need a quick refresher on some of the more complicated topics, such as MIME sniffing, you may enjoy our comprehensive Browser Security Handbook as a starting point: http://code.google.com/p/browsersec/ If you still need assistance, there are several organizations that put a considerable effort into documenting and explaining many of the common web security threats, and advising the public on how to address them. I encourage you to refer to the materials published by OWASP and Web Application Security Consortium, amongst others: * http://www.owasp.org/index.php/Category:Principle * http://www.owasp.org/index.php/Category:OWASP_Guide_Project * http://www.webappsec.org/projects/articles/ Although I am happy to diagnose problems with the scanner itself, I regrettably cannot offer any assistance with the inner wokings of third-party web applications. --------------------------------------- 8. Known limitations / feature wishlist --------------------------------------- Below is a list of features currently missing in skipfish. If you wish to improve the tool by contributing code in one of these areas, please let me know: * Buffer overflow checks: after careful consideration, I suspect there is no reliable way to test for buffer overflows remotely. Much like the actual fault condition we are looking for, proper buffer size checks may also result in uncaught exceptions, 500 messages, etc. I would love to be proved wrong, though. * Fully-fledged JavaScript XSS detection: several rudimentary checks are present in the code, but there is no proper script engine to evaluate expressions and DOM access built in. * Variable length encoding character consumption / injection bugs: these problems seem to be largely addressed on browser level at this point, so they were much lower priority at the time of this writing. * Security checks and link extraction for third-party, plugin-based content (Flash, Java, PDF, etc). * Password brute-force and numerical filename brute-force probes. * Search engine integration (vhosts, starting paths). * VIEWSTATE decoding. * NTLM and digest authentication. * More specific PHP tests (eval injection, RFI). * Proxy support: an experimental HTTP proxy support is available through a #define directive in config.h. Adding support for HTTPS proxying is more complicated, and still in the works. * Scan resume option, better runtime info. * Standalone installation (make install) support. * Scheduling and management web UI. ------------------------------------- 9. Oy! Something went horribly wrong! ------------------------------------- There is no web crawler so good that there wouldn't be a web framework to one day set it on fire. If you encounter what appears to be bad behavior (e.g., a scan that takes forever and generates too many requests, completely bogus nodes in scan output, or outright crashes), please first check our known issues page: http://code.google.com/p/skipfish/wiki/KnownIssues If you can't find a satisfactory answer there, recompile the scanner with: $ make clean debug ...and re-run it this way: $ ./skipfish [...previous options...] 2>logfile.txt You can then inspect logfile.txt to get an idea what went wrong; if it looks like a scanner problem, please scrub any sensitive information from the log file and send it to the author. If the scanner crashed, please recompile it as indicated above, and then type: $ ulimit -c unlimited $ ./skipfish [...previous options...] 2>logfile.txt $ gdb --batch -ex back ./skipfish core ...and be sure to send the author the output of that last command as well. ------------------------ 10. Credits and feedback ------------------------ Skipfish is made possible thanks to the contributions of, and valuable feedback from, Google's information security engineering team. If you have any bug reports, questions, suggestions, or concerns regarding the application, the primary author can be reached at [email protected].
Wiki advises to download the source code via:
svn checkout http://skipfish.googlecode.com/svn/trunk/ skipfish-read-only
But this command results only in an empty directory.
Original issue reported on code.google.com by [email protected]
on 21 Mar 2010 at 6:01
1.08b segfaults after
make clean debug
ulimit -c unlimited
./skipfish -p 25% -g 5000 -m 1000 -o www.unosoft.hu http://www.unosoft.hu/
2>logfile.txt
gdb --batch -ex back ./skipfish core >gdb.out
Any suggestions?
Tamás Gulácsi
[email protected]
Original issue reported on code.google.com by [email protected]
on 21 Mar 2010 at 9:22
Attachments:
How does proxy-support work? I did not find this information from
documentation.
Original issue reported on code.google.com by [email protected]
on 24 Mar 2010 at 8:17
I just compiled Skipfish in Windows with Cygwin and I had to install the
following packages:
- libidn
- libidn-devel
- openssl-devel
In the docs, it's only told "libidn" but is should include the other packages.
Regards.
Original issue reported on code.google.com by [email protected]
on 1 Apr 2010 at 12:16
$ diff index.html.orig index.html
265c265
< "40301": "Incorrect or missing MIME type (higher rirsk)",
---
> "40301": "Incorrect or missing MIME type (higher risk)",
Original issue reported on code.google.com by [email protected]
on 22 Mar 2010 at 7:29
The type sniffer is looking for an "<?xml" string and assuming any html without
it is text/html, but
this is an optional line and the W3 actually recommends not to use it in xhtml
(
http://www.w3.org/TR/xhtml1/guidelines.html)
I've hacked up my local copy with this patch which seems to improve things.
--- skipfish-1.07b/analysis.c 2010-03-20 02:47:46.000000000 +0000
+++ b/analysis.c 2010-03-21 19:44:45.623787778 +0000
@@ -1944,7 +1944,13 @@
inl_strcasestr(sniffbuf, (u8*)"<h1") ||
inl_strcasestr(sniffbuf, (u8*)"<li") ||
inl_strcasestr(sniffbuf, (u8*)"href=")) {
- res->sniff_mime_id = MIME_ASC_HTML;
+ if (inl_strcasestr(sniffbuf, (u8*)"
xmlns=\"http://www.w3.org/1999/xhtml\"") &&
+ inl_strcasestr(sniffbuf, (u8*)" xml:lang=") &&
+ !inl_strcasestr(sniffbuf, (u8*)" lang="))
+ res->sniff_mime_id = MIME_XML_XHTML;
+ else
+ res->sniff_mime_id = MIME_ASC_HTML;
+
return;
}
Original issue reported on code.google.com by flussence
on 21 Mar 2010 at 8:04
"Incorrect or missing MIME type (higher rirsk)"
extra "r" in risk. should be:
"Incorrect or missing MIME type (higher risk)"
Original issue reported on code.google.com by [email protected]
on 22 Mar 2010 at 3:37
skipfish is distributed without manpage, which is quite popular format of
documentation. One of Debian developers created such manpage and it is
available in Debian's BTS:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=575596
Would be great if you could include it in your tarball.
regards
fEnIo
Original issue reported on code.google.com by [email protected]
on 28 Mar 2010 at 10:08
I just ran Skipfish against a website on our staging server. The scan took
a couple of days to run (10 million hits on DB driven site -- should have
used a smaller dictionary!), and came up with 3000 odd issues.
Scanning through, almost all issues are of the form:
# http://xxxx/numbers/letters.html/-2147483649
Memo: response to -(2^31-1) different than to -12345
I believe these to be false positives, as the responses seem to be the
same, except for two things:
1) A comment in the footer of the page source that looks like this:
<!-- Generated by Messiah Ltd. on Fri, 26 Mar 2010 08:31:15 +1300 in 23.7
milliseconds. -->
2) An image tag that is randomly selected (server-side) for each page view.
3) A small quote, also randomly selected per page view.
The scan was run using Skipfish version 1.11b. It only just finished, and
I haven't yet scanned again with a newer version.
Original issue reported on code.google.com by [email protected]
on 25 Mar 2010 at 7:38
Resizing my command window during a scan results in in old status line
"ghosts" remaining in the previous location while new status lines are
relocated according to window size and continue to update.
Original issue reported on code.google.com by [email protected]
on 22 Mar 2010 at 3:33
skipfish segfaultet while scanning an application.
Core was generated by
`./skipfish -C AUDSSESSION 1d5282c6539eb1d7480d2b7b4ee107ec -N -o /tmp/auds
-g'.
The directory was empty so no logs can be provided. A corefile can be
provided on request.
gdb output:
Core was generated by `./skipfish -C AUDSSESSION
1d5282c6539eb1d7480d2b7b4ee107ec -N -o /tmp/auds3 -g'.
Program terminated with signal 11, Segmentation fault.
#0 0x00007f653967a7f4 in strcasecmp () from /lib/libc.so.6
(gdb) bt
#0 0x00007f653967a7f4 in strcasecmp () from /lib/libc.so.6
#1 0x00000000004052c6 in set_value (type=<value optimized out>,
name=0x491a1f0 "form", val=<value optimized out>,
offset=<value optimized out>, par=0x49295e8) at http_client.c:139
#2 0x000000000041ede2 in collect_form_data (req=<value optimized out>,
res=<value optimized out>) at analysis.c:545
#3 scrape_response (req=<value optimized out>, res=<value optimized out>)
at analysis.c:789
#4 0x00000000004133e3 in par_dict_callback (req=0x4916410, res=0x4917600)
at crawler.c:1894
#5 0x000000000040bbae in next_from_queue () at http_client.c:2038
#6 0x00000000004033b6 in main (argc=<value optimized out>,
argv=<value optimized out>) at skipfish.c:419
(gdb) u
The program is not running.
(gdb) up
#1 0x00000000004052c6 in set_value (type=<value optimized out>,
name=0x491a1f0 "form", val=<value optimized out>,
offset=<value optimized out>, par=0x49295e8) at http_client.c:139
139 if (name && strcasecmp((char*)par->n[i], (char*)name)) continue;
(gdb) print name
$1 = (u8 *) 0x491a1f0 "form"
(gdb) print par->n[i]
$2 = (u8 *) 0x0
(gdb) print i
$3 = 1
Original issue reported on code.google.com by florian.streibelt
on 22 Mar 2010 at 10:56
Using skipfish version 1.25b on Debian Testing.
I wanted to check only a subdirectory, so I used the -I option. However,
Skipfish still checks the root (and some directories above the subdirectory).
I used this commandline:
./skipfish -o somedir -I /~username/dir/ajaxhelper.php
http://example.org/~username/dir/ajaxhelper.php
I notice that I get reports for http://example.org/,
http://example.org/~username/ and http://example.org/~username/dir/ Have I
misunderstood the usage of the -I option?
Original issue reported on code.google.com by [email protected]
on 25 Mar 2010 at 10:43
Sorry I think we had a bit of misunderstanding here,
1.15b's Makefile has:
LDFLAGS += -lcrypto -lssl -lidn -lz -L/usr/local/lib/ -L/opt/local/lib
$(CC) $(PROGNAME).c -o $(PROGNAME) $(CFLAGS_OPT) $(OBJFILES) $(LDFLAGS)
This won't work because LDFLAGS are appended too late, and as such, are
ignored.
It should be:
LIBS = -lcrypto -lssl -lidn -lz -L/usr/local/lib/ -L/opt/local/lib
$(CC) $(LDFLAGS) $(PROGNAME).c -o $(PROGNAME) $(CFLAGS_OPT) \
$(OBJFILES) $(LIBS)
In order to respect environment's LDFLAGS they can't be mixed with -l
flags... and even when not respecting them, `make LDFLAGS=""` as argument
would be broken.
(That's what I really tried to say on the previous bug, and got a bit
sidetracked by other vars there, I guess, sorry...)
Attached is the way I would write it...
Then you can:
export CFLAGS="-march=core2 -pipe -O2"
export LDFLAGS="-Wl,--as-needed"
make debug -> -g -ggdb is only appended then, and above is used
make -> build with upstream optimization, -O3, above is
prepended to this too
make OPT_CFLAGS="" -> use only your own above environment flags
Original issue reported on code.google.com by [email protected]
on 23 Mar 2010 at 10:27
Attachments:
In the source http_client.c, line 863.
By looking at the code, I have seen :
ASD("Connction: keep-alive\r\n");
instead of :
ASD("Connection: keep-alive\r\n");
the 'e' character is missing.
Original issue reported on code.google.com by [email protected]
on 22 Mar 2010 at 5:31
The report is not working / displayed correctly on Google Chrome.
Original issue reported on code.google.com by [email protected]
on 23 Mar 2010 at 2:47
Hi Michal,
I noticed that if there is a form on a webpage which looks like
<form method="post">
... form content ...
</form>
then skipfish completely ignores this form and don't even tries to submit
anything. Even when I used the auto-complete rules for this form.
Once I've added the action attribute it started submitting this form.
I guess many forms omit action being supposed that it'll be submmitted to
the current location.
Original issue reported on code.google.com by [email protected]
on 31 Mar 2010 at 10:54
I am trying skipfish against DVWA (http://www.dvwa.co.uk/) on a Ubuntu 9.04
VM with 2 GB RAM. Unfortunately it consistently fails with the following:
skipfish version 1.25b by <[email protected]>
Scan statistics
---------------
Scan time : 3:10:39.0369
HTTP requests : 1155023 sent (101.04/s), 837781.75 kB in, 565251.44 kB
out (122.65 kB/s)
Compression : 177901.86 kB in, 766857.50 kB out (62.34% gain)
HTTP exceptions : 1 net errors, 0 proto errors, 0 retried, 0 drops
TCP connections : 11447 total (101.48 req/conn)
TCP exceptions : 0 failures, 1 timeouts, 7 purged
External links : 38219 skipped
Reqs pending : 6609
Database statistics
-------------------
Pivots : 44832 total, 29585 done (65.99%)
In progress : 15015 pending, 169 init, 37 attacks, 26 dict
Missing nodes : 275 spotted
Node types : 1 serv, 3228 dir, 12413 file, 1792 pinfo, 12773 unkn,
14625 par, 0 val
Issues found : 4546 info, 8977 warn, 14540 low, 1 medium, 2320 high impact
Dict size : 223 words (23 new), 8 extensions, 231 candidates
[-] PROGRAM ABORT : out of memory: can't allocate 14226 bytes
Stop location : __DFL_ck_alloc(), alloc-inl.h:69
Any idea?
Original issue reported on code.google.com by [email protected]
on 30 Mar 2010 at 7:07
Our security officer is nervous about our downloading OSS products. He's
afraid the code might be tampered with. Would it be possible provide a
hash value for the downloads? It would ease his mind.
Original issue reported on code.google.com by [email protected]
on 31 Mar 2010 at 5:52
Sorry for creating a new issue but that's the only way to attach a file
here. Skipfish compiles cleanly, not much tested in production.
Original issue reported on code.google.com by [email protected]
on 25 Mar 2010 at 11:18
Attachments:
Instead of compiling i see this:
verigon:skipfish test$ sudo make
Password:
cc skipfish.c -o skipfish -Wall -funsigned-char -g -ggdb
-D_FORTIFY_SOURCE=0 -O3 -Wno-format http_client.c database.c crawler.c
analysis.c report.c -lcrypto -lssl -lidn -lz
http_client.c:38:18: error: idna.h: No such file or directory
http_client.c: In function ‘parse_url’:
http_client.c:275: warning: implicit declaration of function
‘idna_to_ascii_8z’
http_client.c:275: error: ‘IDNA_SUCCESS’ undeclared (first use in this
function)
http_client.c:275: error: (Each undeclared identifier is reported only once
http_client.c:275: error: for each function it appears in.)
report.c: In function ‘copy_static_code’:
report.c:744: warning: passing argument 3 of ‘scandir’ from incompatible
pointer type
make: *** [skipfish] Error 1
What version of the product are you using? On what operating system?
Developer Information:
Version: 3.2 (10M2003)
Location: /Developer
Applications:
Xcode: 3.2.1 (1613)
Interface Builder: 3.2.1 (740)
Instruments: 2.0.1 (1096)
Dashcode: 3.0 (328)
SDKs:
Mac OS X:
10.5: (9J61)
10.6: (10M2003)
Original issue reported on code.google.com by [email protected]
on 20 Mar 2010 at 10:44
It looks like the application must be run from the same directory that has
the assets/* files.
[-] SYSTEM ERROR : Unable to access 'assets/index.html' - wrong directory?
Stop location : main(), skipfish.c:374
OS message : No such file or directory
It would be nice if one could supply the assets path via the CLI and/or
configure it to be a specific location.
Original issue reported on code.google.com by [email protected]
on 22 Mar 2010 at 7:50
Please make the source available from SVN (or a git repository).
Original issue reported on code.google.com by [email protected]
on 26 Mar 2010 at 3:17
Added -I/usr/local/include/, -L/usr/local/lib/ to Makefile, gmake
gmake
cc skipfish.c -o skipfish -Wall -funsigned-char -g -ggdb -
D_FORTIFY_SOURCE=0 -I/usr/local/include/ -O3 -Wno-format http_client.c
database.c crawler.c analysis.c report.c -lcrypto -lssl -lidn -lz -L/usr/
local/lib/
In file included from skipfish.c:36:
alloc-inl.h: In function `__DFL_ck_alloc':
alloc-inl.h:69: warning: implicit declaration of function
`malloc_usable_size'
In file included from http_client.c:42:
alloc-inl.h: In function `__DFL_ck_alloc':
alloc-inl.h:69: warning: implicit declaration of function
`malloc_usable_size'
http_client.c: In function `destroy_unlink_conn':
http_client.c:1618: warning: implicit declaration of function `close'
http_client.c: In function `next_from_queue':
http_client.c:2013: warning: implicit declaration of function `read'
http_client.c:2091: warning: implicit declaration of function `write'
In file included from http_client.h:30,
from database.c:33:
alloc-inl.h: In function `__DFL_ck_alloc':
alloc-inl.h:69: warning: implicit declaration of function
`malloc_usable_size'
In file included from http_client.h:30,
from crawler.c:30:
alloc-inl.h: In function `__DFL_ck_alloc':
alloc-inl.h:69: warning: implicit declaration of function
`malloc_usable_size'
In file included from http_client.h:30,
from analysis.c:28:
alloc-inl.h: In function `__DFL_ck_alloc':
alloc-inl.h:69: warning: implicit declaration of function
`malloc_usable_size'
In file included from http_client.h:30,
from report.c:33:
alloc-inl.h: In function `__DFL_ck_alloc':
alloc-inl.h:69: warning: implicit declaration of function
`malloc_usable_size'
report.c: In function `copy_static_code':
report.c:744: warning: passing arg 3 of `scandir' from incompatible
pointer type
/var/tmp//ccmILv91.o(.text+0x590): In function `main':
/home/zm/skipfish/skipfish/alloc-inl.h:86: undefined reference to
`malloc_usable_size'
/var/tmp//ccmILv91.o(.text+0x5c1):/home/zm/skipfish/skipfish/alloc-
inl.h:92: undefined reference to `malloc_usable_size'
/var/tmp//ccmILv91.o(.text+0x67f):/home/zm/skipfish/skipfish/alloc-
inl.h:86: undefined reference to `malloc_usable_size'
/var/tmp//ccmILv91.o(.text+0x6b0):/home/zm/skipfish/skipfish/alloc-
inl.h:92: undefined reference to `malloc_usable_size'
/var/tmp//ccmILv91.o(.text+0x7ac):/home/zm/skipfish/skipfish/alloc-
inl.h:86: undefined reference to `malloc_usable_size'
/var/tmp//ccmILv91.o(.text+0x7dd):/home/zm/skipfish/skipfish/alloc-
inl.h:92: more undefined references to `malloc_usable_size' follow
gmake: *** [skipfish] Error 1
Original issue reported on code.google.com by [email protected]
on 20 Mar 2010 at 10:50
After 1h it eat up over 2GB of RAM. It's too much, especially since I used
minimal.wl. To reproduce it scanning page I administrate is enough. I can
provide its URL, but privately.
skipfish version 1.06b by <[email protected]>
Scan statistics
---------------
Scan time : 1:04:41.0108
HTTP requests : 6467537 sent (1666.70/s), 4322432.00 kB in, 2537108.25
kB out (1767.42 kB/s)
Compression : 2239519.75 kB in, 6157672.50 kB out (46.66% gain)
HTTP exceptions : 2 net errors, 0 proto errors, 1 retried, 0 drops
TCP connections : 64060 total (101.09 req/conn)
TCP exceptions : 0 failures, 2 timeouts, 1 purged
External links : 1643732 skipped
Reqs pending : 8367
Database statistics
-------------------
Pivots : 5486 total, 5279 done (96.23%)
In progress : 123 pending, 71 init, 3 attacks, 10 dict
Missing nodes : 100 spotted
Node types : 1 serv, 88 dir, 4899 file, 123 pinfo, 241 unkn, 104 par,
30 val
Issues found : 120 info, 6 warn, 3840 low, 8149 medium, 0 high impact
Dict size : 2894 words (1010 new), 46 extensions, 256 candidates
Original issue reported on code.google.com by [email protected]
on 21 Mar 2010 at 5:34
What steps will reproduce the problem?
1. Downloaded and compiled libidn-1.9
2. Compiled skipfish 1.0
3. Using the default.wi dictionary ran ./skipfish -o google.com
http://google.com
What is the expected output? What do you see instead?
skipfish version 1.00b by <[email protected]>
Abort trap
What version of the product are you using? On what operating system?
1.00b OSX 10.6.2
Please provide any additional information below.
Original issue reported on code.google.com by [email protected]
on 19 Mar 2010 at 8:49
I have been scanning a host using the complete dictionary and the scan
already ran for more than 5 hours. How can I stop this scan without losing
the data gathered by the scanner?
Original issue reported on code.google.com by [email protected]
on 20 Mar 2010 at 12:30
cc -L/usr/local/lib/ -L/opt/local/lib skipfish.c -o skipfish -O3
-Wno-format -Wall -funsigned-char -g -ggdb -D_FORTIFY_SOURCE=0
-I/usr/local/include/ -I/opt/local/include/ \
http_client.c database.c crawler.c analysis.c report.c -lcrypto
-lssl -lidn -lz
http_client.c:39:18: error: idna.h: No such file or directory
http_client.c: In function ‘parse_url’:
http_client.c:277: warning: implicit declaration of function
‘idna_to_ascii_8z’
http_client.c:277: error: ‘IDNA_SUCCESS’ undeclared (first use in this
function)
http_client.c:277: error: (Each undeclared identifier is reported only once
http_client.c:277: error: for each function it appears in.)
report.c: In function ‘copy_static_code’:
report.c:744: warning: passing argument 3 of ‘scandir’ from incompatible
pointer type
make: *** [skipfish] Error 1
Note: before submitting, check:
http://code.google.com/p/skipfish/wiki/KnownIssues
Original issue reported on code.google.com by [email protected]
on 24 Mar 2010 at 4:19
% svn checkout http://skipfish.googlecode.com/svn/trunk/ skipfish-read-only
Checked out revision 74.
% ls -a skipfish-read-only
. .. .svn
No other files to work with!
Original issue reported on code.google.com by dan.rasmussen
on 23 Mar 2010 at 4:16
What steps will reproduce the problem?
pull the tarball and unpack it
What is the expected output? What do you see instead?
$ tar zxf skipfish-1.05b.tgz
$ ls
and we see:
README skipfish skipfish-1.05b.tgz
rather than a nice versioned directory, permitting easier 'diff'ing,
deltas, and avoidance of error from being in the wrong place
We should have seen:
README skipfish-1.05b/ skipfish-1.05b.tgz
perhaps
What version of the product are you using? On what operating system?
As above on a CentOS 5 unit
Please provide any additional information below.
Please consider this as it greatly simplifies source code management for
packaging systems.
Original issue reported on code.google.com by herrold
on 21 Mar 2010 at 2:28
Would it be possible to have a flag for ignoring:
1) self signed ssl certificates
2) out of date ssl certificates
Many thanks
Original issue reported on code.google.com by [email protected]
on 24 Mar 2010 at 12:17
I've tried to checkout source code, but can't find it.
$svn checkout http://skipfish.googlecode.com/svn/trunk/ skipfish-read-only
$ls skipfish-read-only -lha
total 12K
drwxr-xr-x 3 dr dr 4,0K Mar 26 11:59 ./
drwx------ 28 dr dr 4,0K Mar 26 11:59 ../
drwxr-xr-x 6 dr dr 4,0K Mar 26 12:00 .svn/
Is this a problem?
Original issue reported on code.google.com by [email protected]
on 26 Mar 2010 at 10:08
It would be _really_ helpful to display the command used to launch the scan
or at least the url getting scanned while the progress screen is up - maybe
under the skipfish version banner.
Original issue reported on code.google.com by [email protected]
on 1 Apr 2010 at 7:45
Have installed idn and all other pre-requisites. Attempting to Make generates:
http_client.c:39:18: error: idna.h: No such file or directory
Original issue reported on code.google.com by [email protected]
on 26 Mar 2010 at 3:57
cc skipfish.c -o skipfish -Wall -funsigned-char -g -ggdb -U_FORTIFY_SOURCE -O3
-Wno-
format http_client.c database.c crawler.c analysis.c report.c -lcrypto -lssl
-lidn -lz
Results in:
http_client.c:38:18: error: idna.h: No such file or directory
http_client.c: In function ‘parse_url’:
http_client.c:275: warning: implicit declaration of function
‘idna_to_ascii_8z’
http_client.c:275: error: ‘IDNA_SUCCESS’ undeclared (first use in this
function)
http_client.c:275: error: (Each undeclared identifier is reported only once
http_client.c:275: error: for each function it appears in.)
report.c: In function ‘copy_static_code’:
report.c:744: warning: passing argument 3 of ‘scandir’ from incompatible
pointer type
Original issue reported on code.google.com by [email protected]
on 19 Mar 2010 at 10:48
Line 93 of extensions-only.wl appears to be malformed:
w 1 1 1 dmse 1 1 1 7z
It should probably be:
w 1 1 1 dms
e 1 1 1 7z
Original issue reported on code.google.com by [email protected]
on 22 Mar 2010 at 3:01
I can't compile it on openbsd :
tmp//ccitPTK6.o(.text+0x1482): In function `serialize_path':
/home/dbd/Downloads/skipfish/http_client.c:441: warning: sprintf() is often
misused, please use snprintf()
/tmp//ccMD7G7q.o(.text+0xeb3): In function `__DFL_ck_alloc':
/home/dbd/Downloads/skipfish/alloc-inl.h:71: undefined reference to
`malloc_usable_size'
/tmp//ccMD7G7q.o(.text+0xf6a): In function `__DFL_ck_realloc':
/home/dbd/Downloads/skipfish/alloc-inl.h:88: undefined reference to
`malloc_usable_size'
/tmp//ccMD7G7q.o(.text+0xf95):Downloads/skipfish/alloc-inl.h:94: undefined
reference to `malloc_usable_size'
/tmp//ccMD7G7q.o(.text+0x1093): In function `__DFL_ck_strdup':
Downloads/skipfish/alloc-inl.h:116: undefined reference to `malloc_usable_size'
/tmp//ccitPTK6.o(.text+0x11a6): In function `serialize_path':
Downloads/skipfish/http_client.c:635: undefined reference to
`malloc_usable_size'
/tmp//ccitPTK6.o(.text+0x128e):Downloads/skipfish/http_client.c:668: more
undefined references to `malloc_usable_size' follow
collect2: ld returned 1 exit status
*** Error code 1
I also get a warning :
/usr/include/malloc.h:4:2: warning: #warning "<malloc.h> is obsolete, use
<stdlib.h>"
Original issue reported on code.google.com by [email protected]
on 22 Mar 2010 at 9:21
Can't use LDFLAGS to pass -l<ibraries> to linker, because with
-Wl,--as-needed it will break, objects need to come before libraries.
Explained here, http://www.gentoo.org/proj/en/qa/asneeded.xml
Section: "Importance of linking order"
Attached patch fixes the issue
Original issue reported on code.google.com by [email protected]
on 23 Mar 2010 at 7:12
Attachments:
I don't think this is error number 6, since this is with the latest version
of the code.
When I tried ./skipfish -o /var/tmp/out -W dictionaries/complete.wl
http://192.168.1.1
I got this error:
skipfish version 1.19b by <[email protected]>
*** glibc detected *** ./skipfish: realloc(): invalid pointer:
0x0000000002101420 ***
======= Backtrace: =========
/lib/libc.so.6[0x7f75d490ed16]
/lib/libc.so.6[0x7f75d49150c5]
./skipfish[0x40bff2]
./skipfish[0x40e0bb]
./skipfish[0x40e28a]
./skipfish[0x403123]
/lib/libc.so.6(__libc_start_main+0xfd)[0x7f75d48bcabd]
./skipfish[0x402369]
======= Memory map: ========
00400000-00429000 r-xp 00000000 08:12 21200950
/home/njh/Download/skipfish/skipfish
00628000-00629000 rw-p 00028000 08:12 21200950
/home/njh/Download/skipfish/skipfish
00629000-0062a000 rw-p 00000000 00:00 0
02100000-02121000 rw-p 00000000 00:00 0 [heap]
7f75d4484000-7f75d449a000 r-xp 00000000 08:06 3407913
/lib/libgcc_s.so.1
7f75d449a000-7f75d4699000 ---p 00016000 08:06 3407913
/lib/libgcc_s.so.1
7f75d4699000-7f75d469a000 rw-p 00015000 08:06 3407913
/lib/libgcc_s.so.1
7f75d469a000-7f75d469c000 r-xp 00000000 08:06 3408113
/lib/libdl-2.10.2.so
7f75d469c000-7f75d489c000 ---p 00002000 08:06 3408113
/lib/libdl-2.10.2.so
7f75d489c000-7f75d489d000 r--p 00002000 08:06 3408113
/lib/libdl-2.10.2.so
7f75d489d000-7f75d489e000 rw-p 00003000 08:06 3408113
/lib/libdl-2.10.2.so
7f75d489e000-7f75d49e8000 r-xp 00000000 08:06 3408094
/lib/libc-2.10.2.so
7f75d49e8000-7f75d4be8000 ---p 0014a000 08:06 3408094
/lib/libc-2.10.2.so
7f75d4be8000-7f75d4bec000 r--p 0014a000 08:06 3408094
/lib/libc-2.10.2.so
7f75d4bec000-7f75d4bed000 rw-p 0014e000 08:06 3408094
/lib/libc-2.10.2.so
7f75d4bed000-7f75d4bf2000 rw-p 00000000 00:00 0
7f75d4bf2000-7f75d4c09000 r-xp 00000000 08:06 4180650
/usr/lib/libz.so.1.2.3.4
7f75d4c09000-7f75d4e08000 ---p 00017000 08:06 4180650
/usr/lib/libz.so.1.2.3.4
7f75d4e08000-7f75d4e09000 rw-p 00016000 08:06 4180650
/usr/lib/libz.so.1.2.3.4
7f75d4e09000-7f75d4e3a000 r-xp 00000000 08:06 4181738
/usr/lib/libidn.so.11.6.1
7f75d4e3a000-7f75d503a000 ---p 00031000 08:06 4181738
/usr/lib/libidn.so.11.6.1
7f75d503a000-7f75d503b000 rw-p 00031000 08:06 4181738
/usr/lib/libidn.so.11.6.1
7f75d503b000-7f75d5089000 r-xp 00000000 08:06 4186090
/usr/lib/libssl.so.0.9.8
7f75d5089000-7f75d5289000 ---p 0004e000 08:06 4186090
/usr/lib/libssl.so.0.9.8
7f75d5289000-7f75d5290000 rw-p 0004e000 08:06 4186090
/usr/lib/libssl.so.0.9.8
7f75d5290000-7f75d5404000 r-xp 00000000 08:06 4184592
/usr/lib/libcrypto.so.0.9.8
7f75d5404000-7f75d5604000 ---p 00174000 08:06 4184592
/usr/lib/libcrypto.so.0.9.8
7f75d5604000-7f75d562c000 rw-p 00174000 08:06 4184592
/usr/lib/libcrypto.so.0.9.8
7f75d562c000-7f75d5630000 rw-p 00000000 00:00 0
7f75d5630000-7f75d564d000 r-xp 00000000 08:06 3407962
/lib/ld-2.10.2.so
7f75d5829000-7f75d582d000 rw-p 00000000 00:00 0
7f75d5847000-7f75d584c000 rw-p 00000000 00:00 0
7f75d584c000-7f75d584d000 r--p 0001c000 08:06 3407962
/lib/ld-2.10.2.so
7f75d584d000-7f75d584e000 rw-p 0001d000 08:06 3407962
/lib/ld-2.10.2.so
7fffb41b7000-7fffb41cd000 rw-p 00000000 00:00 0
[stack]
7fffb41ff000-7fffb4200000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
[vsyscall]
Aborted (core dumped)
njh@packard:~/Download/skipfish$
The gdb backtrace is:
#0 0x00007f75d48cff45 in *__GI_raise (sig=<value optimized out>)
at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007f75d48d2d80 in *__GI_abort () at abort.c:88
#2 0x00007f75d490554d in __libc_message (do_abort=2,
fmt=0x7fffb41c9c90 ' ' <repeats 23 times>,
"[stack]\n7fffb41ff000-7fffb4200000 r-xp 00000000 00:00 0", ' ' <repeats 26
times>, "[vdso]\nffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0",
' ' <repeats 18 times>, "[vsyscall]\n:06 4"...) at
../sysdeps/unix/sysv/linux/libc_fatal.c:173
#3 0x00007f75d490ed16 in malloc_printerr (action=3,
str=0x7f75d49b6baf "realloc(): invalid pointer", ptr=<value optimized out>)
at malloc.c:6239
#4 0x00007f75d49150c5 in realloc_check (oldmem=0x2101420, bytes=16,
caller=<value optimized out>) at hooks.c:330
#5 0x000000000040bff2 in __DFL_ck_realloc (orig=0x2101420, size=5665)
at alloc-inl.h:91
#6 0x000000000040e0bb in wordlist_confirm_single (text=<value optimized out>,
is_ext=<value optimized out>, add_hits=<value optimized out>, total_age=2,
last_age=2) at database.c:841
#7 0x000000000040e28a in load_keywords (fname=<value optimized out>,
purge_age=0) at database.c:976
#8 0x0000000000403123 in main (argc=6, argv=0x7fffb41ca758) at skipfish.c:398
Original issue reported on code.google.com by fumeoftheday
on 24 Mar 2010 at 12:14
No report available using Firefox 3.0.11.
It seems the same behaviour of the issue related to Chrome.
(see image)
Original issue reported on code.google.com by [email protected]
on 23 Mar 2010 at 10:55
Attachments:
What steps will reproduce the problem?
1. Download skipfish-1.01b.tgz
2. Extract
3. cd skipfish
4. make
What is the expected output? What do you see instead?
➜ skipfish ✗ make
cc skipfish.c -o skipfish -Wall -funsigned-char -g -ggdb -U_FORTIFY_SOURCE -O3
-Wno-
format http_client.c database.c crawler.c analysis.c report.c -lcrypto -lssl
-lidn -lz
http_client.c:38:18: error: idna.h: No such file or directory
http_client.c: In function ‘parse_url’:
http_client.c:275: warning: implicit declaration of function
‘idna_to_ascii_8z’
http_client.c:275: error: ‘IDNA_SUCCESS’ undeclared (first use in this
function)
http_client.c:275: error: (Each undeclared identifier is reported only once
http_client.c:275: error: for each function it appears in.)
report.c: In function ‘copy_static_code’:
report.c:744: warning: passing argument 3 of ‘scandir’ from incompatible
pointer type
make: *** [skipfish] Error 1
➜ skipfish ✗ ls
COPYING analysis.c crawler.c debug.h report.c
string-inl.h
Makefile analysis.h crawler.h dictionaries report.h types.h
README assets database.c http_client.c same_test.c
alloc-inl.h config.h database.h http_client.h skipfish.c
What version of the product are you using? On what operating system?
1.01b
OSX 10.6.2
➜ skipfish ✗ cc --version
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5646) (dot 1)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Original issue reported on code.google.com by [email protected]
on 20 Mar 2010 at 12:06
When building from tarball got following :
make all
cc skipfish.c -o skipfish -Wall -funsigned-char -g -ggdb -D_FORTIFY_SOURCE=0
-O3 -Wno-format
http_client.c database.c crawler.c analysis.c report.c -lcrypto -lssl -lidn -lz
http_client.c:38:18: error: idna.h: No such file or directory
http_client.c: In function ‘parse_url’:
http_client.c:275: warning: implicit declaration of function
‘idna_to_ascii_8z’
http_client.c:275: error: ‘IDNA_SUCCESS’ undeclared (first use in this
function)
http_client.c:275: error: (Each undeclared identifier is reported only once
http_client.c:275: error: for each function it appears in.)
report.c: In function ‘copy_static_code’:
report.c:744: warning: passing argument 3 of ‘scandir’ from incompatible
pointer type
make: *** [skipfish] Error 1
Also, it looks like SVN for this project is mostly empty?
Andrei
Original issue reported on code.google.com by [email protected]
on 21 Mar 2010 at 3:56
What steps will reproduce the problem?
1. run a scan
2. open generated index.html in google chrome (I use 5.0.342.3)
3.
What is the expected output? What do you see instead?
Using Firefox, report parts appear, are clickable and expand properly.
With Chrome, no results appear (section titles such as "Crawl results -
click to expand:" are visible, but without content). Please see attached
screenshot !
What version of the product are you using? On what operating system?
- OS is Linux, Debian "squeeze"
- skipfish 1.05b
- google chrome 5.0.342.3
Please provide any additional information below.
Original issue reported on code.google.com by [email protected]
on 20 Mar 2010 at 10:22
Attachments:
I'm using version 1.25 beta. The server I'm testing is treating a PUT
request as a GET request and hence SkipFisk reports this a PUT issue. Is
there some way Skipfish can be improved to avoid false positives for PUT
(by testing if the PUT actually put a file there)?
Original issue reported on code.google.com by [email protected]
on 25 Mar 2010 at 10:46
I got this error when try compile skipfish:
http_client.c:39:18: error: idna.h: No such file or directory
Where is supposed to find idna.h?
thx a lot.
Original issue reported on code.google.com by [email protected]
on 22 Mar 2010 at 9:50
What steps will reproduce the problem?
1. run skipfish without parameter
2. See the error : [-] PROGRAM ABORT : Scan target not specified (try -h
for help).
Stop location : main(), skipfish.c:379
3. verify the color of your shell, it should be slightly different
Attached a patch that should correct the issue. I called the variable with
the "normal color" cRST for ReSeT. (being black, white or whatever the user
normally uses) .
You might want to correct the # define cNOR "\x1b[0;37m" variable, but I'm
not sure where you use that one.
Original issue reported on code.google.com by [email protected]
on 20 Mar 2010 at 4:00
Attachments:
Tested:
skipfish-1.11b.tgz
command:
bash-3.2$ ./skipfish -o test123abc http://10.0.0.1
Output:
skipfish version 1.11b by <[email protected]>
[-] SYSTEM ERROR : Unable to open wordlist 'skipfish.wl'
Stop location : load_keywords(), database.c:968
OS message : No such file or directory
No problem if run like:
./skipfish -W /dev/null -o test123abc http://10.0.0.1
Skipfish is run from within the directory it was compiled.
bash-3.2$ find ./ -name *.wl
.//dictionaries/complete.wl
.//dictionaries/default.wl
.//dictionaries/extensions-only.wl
.//dictionaries/minimal.wl
Original issue reported on code.google.com by Louwrentius
on 22 Mar 2010 at 8:22
~/skipfish# make
cc skipfish.c -o skipfish -Wall -funsigned-char -g -ggdb
-D_FORTIFY_SOURCE=0 -O3 -Wno-format http_client.c database.c crawler.c
analysis.c report.c -lcrypto -lssl -lidn -lz
In file included from crawler.h:26,
from skipfish.c:39:
http_client.h:26:25: error: openssl/ssl.h: No such file or directory
In file included from crawler.h:26,
from skipfish.c:39:
http_client.h:189: error: expected specifier-qualifier-list before
‘SSL_CTX’
skipfish.c: In function ‘main’:
skipfish.c:143: warning: implicit declaration of function
‘SSL_library_init’
http_client.c:36:25: error: openssl/ssl.h: No such file or directory
http_client.c:37:25: error: openssl/err.h: No such file or directory
http_client.c:39:18: error: zlib.h: No such file or directory
In file included from database.h:29,
from http_client.c:44:
http_client.h:189: error: expected specifier-qualifier-list before
‘SSL_CTX’
http_client.c: In function ‘parse_response’:
http_client.c:1491: error: ‘z_stream’ undeclared (first use in this
function)
http_client.c:1491: error: (Each undeclared identifier is reported only once
http_client.c:1491: error: for each function it appears in.)
http_client.c:1491: error: expected ‘;’ before ‘d’
http_client.c:1496: error: ‘d’ undeclared (first use in this
function)
http_client.c:1506: warning: implicit declaration of function
‘inflateInit2’
http_client.c:1506: error: ‘Z_OK’ undeclared (first use in this
function)
http_client.c:1507: warning: implicit declaration of function
‘inflateEnd’
http_client.c:1512: warning: implicit declaration of function
‘inflate’
http_client.c:1512: error: ‘Z_FINISH’ undeclared (first use in this
function)
http_client.c:1515: error: ‘Z_BUF_ERROR’ undeclared (first use in
this
function)
http_client.c:1515: error: ‘Z_STREAM_END’ undeclared (first use in
this
function)
http_client.c: In function ‘destroy_unlink_conn’:
http_client.c:1611: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1611: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1612: error: ‘struct conn_entry’ has no member named
‘prev’
http_client.c:1612: error: ‘struct conn_entry’ has no member named
‘next’
http_client.c:1612: error: ‘struct conn_entry’ has no member named
‘prev’
http_client.c:1612: error: ‘struct conn_entry’ has no member named
‘next’
http_client.c:1613: error: ‘struct conn_entry’ has no member named
‘next’
http_client.c:1613: error: ‘struct conn_entry’ has no member named
‘next’
http_client.c:1613: error: ‘struct conn_entry’ has no member named
‘prev’
http_client.c:1614: error: ‘struct conn_entry’ has no member named
‘srv_ssl’
http_client.c:1614: warning: implicit declaration of function
‘SSL_free’
http_client.c:1614: error: ‘struct conn_entry’ has no member named
‘srv_ssl’
http_client.c:1615: error: ‘struct conn_entry’ has no member named
‘srv_ctx’
http_client.c:1615: warning: implicit declaration of function
‘SSL_CTX_free’
http_client.c:1615: error: ‘struct conn_entry’ has no member named
‘srv_ctx’
http_client.c:1616: error: ‘struct conn_entry’ has no member named
‘write_buf’
http_client.c:1617: error: ‘struct conn_entry’ has no member named
‘read_buf’
http_client.c:1618: warning: implicit declaration of function
‘close’
http_client.c: In function ‘reuse_conn’:
http_client.c:1627: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1627: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1628: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1629: error: ‘struct conn_entry’ has no member named
‘read_buf’
http_client.c:1630: error: ‘struct conn_entry’ has no member named
‘write_buf’
http_client.c:1631: error: ‘struct conn_entry’ has no member named
‘read_buf’
http_client.c:1631: error: ‘struct conn_entry’ has no member named
‘write_buf’
http_client.c:1632: error: ‘struct conn_entry’ has no member named
‘read_len’
http_client.c:1632: error: ‘struct conn_entry’ has no member named
‘write_len’
http_client.c:1632: error: ‘struct conn_entry’ has no member named
‘write_off’
http_client.c:1633: error: ‘struct conn_entry’ has no member named
‘SSL_rd_w_wr’
http_client.c:1633: error: ‘struct conn_entry’ has no member named
‘SSL_wr_w_rd’
http_client.c: In function ‘check_ssl’:
http_client.c:1738: error: ‘X509’ undeclared (first use in this
function)
http_client.c:1738: error: ‘p’ undeclared (first use in this
function)
http_client.c:1740: warning: implicit declaration of function
‘SSL_get_peer_certificate’
http_client.c:1740: error: ‘struct conn_entry’ has no member named
‘srv_ssl’
http_client.c:1748: warning: implicit declaration of function
‘ASN1_UTCTIME_cmp_time_t’
http_client.c:1752: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1753: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1757: warning: implicit declaration of function
‘X509_NAME_oneline’
http_client.c:1757: warning: assignment makes pointer from integer without
a cast
http_client.c:1760: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1761: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1763: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1764: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1771: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1783: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1784: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1786: warning: implicit declaration of function
‘X509_free’
http_client.c:1788: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1789: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1791: error: ‘struct conn_entry’ has no member named
‘ssl_checked’
http_client.c: In function ‘conn_associate’:
http_client.c:1846: error: ‘errno’ undeclared (first use in this
function)
http_client.c:1846: error: ‘EINPROGRESS’ undeclared (first use in
this
function)
http_client.c:1852: error: ‘struct conn_entry’ has no member named
‘srv_ctx’
http_client.c:1852: warning: implicit declaration of function
‘SSL_CTX_new’
http_client.c:1852: warning: implicit declaration of function
‘SSLv23_client_method’
http_client.c:1854: error: ‘struct conn_entry’ has no member named
‘srv_ctx’
http_client.c:1856: warning: implicit declaration of function
‘SSL_CTX_set_mode’
http_client.c:1856: error: ‘struct conn_entry’ has no member named
‘srv_ctx’
http_client.c:1856: error: ‘SSL_MODE_ENABLE_PARTIAL_WRITE’
undeclared
(first use in this function)
http_client.c:1857: error: ‘SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER’
undeclared (first use in this function)
http_client.c:1859: error: ‘struct conn_entry’ has no member named
‘srv_ssl’
http_client.c:1859: warning: implicit declaration of function
‘SSL_new’
http_client.c:1859: error: ‘struct conn_entry’ has no member named
‘srv_ctx’
http_client.c:1861: error: ‘struct conn_entry’ has no member named
‘srv_ssl’
http_client.c:1862: error: ‘struct conn_entry’ has no member named
‘srv_ctx’
http_client.c:1866: warning: implicit declaration of function
‘SSL_set_fd’
http_client.c:1866: error: ‘struct conn_entry’ has no member named
‘srv_ssl’
http_client.c:1867: warning: implicit declaration of function
‘SSL_set_connect_state’
http_client.c:1867: error: ‘struct conn_entry’ has no member named
‘srv_ssl’
http_client.c:1873: error: ‘struct conn_entry’ has no member named
‘next’
http_client.c:1875: error: ‘struct conn_entry’ has no member named
‘next’
http_client.c:1875: error: ‘struct conn_entry’ has no member named
‘next’
http_client.c:1881: error: ‘struct conn_entry’ has no member named
‘q’
http_client.c:1886: error: ‘struct conn_entry’ has no member named
‘write_buf’
http_client.c:1887: error: ‘struct conn_entry’ has no member named
‘write_len’
http_client.c:1887: error: ‘struct conn_entry’ has no member named
‘write_buf’
http_client.c: In function ‘next_from_queue’:
http_client.c:1915: error: ‘struct conn_entry’ has no member named
‘write_len’
http_client.c:1915: error: ‘struct conn_entry’ has no member named
‘write_off’
Original issue reported on code.google.com by [email protected]
on 20 Mar 2010 at 7:33
Is possible to limit the bandwith?
I try skipfish with an domain and I make a DoS :S
Original issue reported on code.google.com by diegors
on 28 Mar 2010 at 11:53
on ubuntu lucid beta1, after installing libidn11-dev, it is still not
possible to compile skipfish 1.03b.
we need to install libssl-dev package to make it compile, but the readme
does not contain information about this.
What steps will reproduce the problem?
1. try make
2. you'll get openssl/ssl.h: No such file or directory error
3. install libssl-dev, and now it compiles.
Original issue reported on code.google.com by [email protected]
on 20 Mar 2010 at 1:54
It is highly demanded, to implement an dos(denial of service) blocker.
The easiest way should be, to ask about a simple key file
like "http://example.com/skipfish_[sha_digest_hex].html"
Original issue reported on code.google.com by [email protected]
on 21 Mar 2010 at 5:05
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