This is the repository of the website at krackattacks.com
Feel free to submit pull requests to fix spellings mistakes or suggest new Q&A entries.
Feel free to submit pull requests to fix spellings mistakes or suggest new Q&A entries.
You can also read vulnerability note VU#228519 of CERT/CC for additional details on which products are known to be affected.
Link returns:
Error 404
HTTP Web Server: IBM Notes Exception - Entry not found in index
About the "Should I change my Wi-Fi password?" QA, it could highlight that if you did change your password before patch, using the web interface of your rooter, then it could be compromised.
i have this problem with script:
connect exception hostapd_ctrl/wlan0 9877
please a need help for solve this.
Hi all.
What are you thinking about authorization by certificate? (WPA2-Ent + cert sign-on)
Are this solve this issue or not?
[09:07:03] Failed to get MAC address of wlan0. Specify an existing interface in hostapd.conf at the line "interface=NAME".
Traceback (most recent call last):
File "./krack-test-client.py", line 615, in
attack = KRAckAttackClient()
File "./krack-test-client.py", line 349, in init
self.apmac = scapy.arch.get_if_hwaddr(interface)
File "/usr/lib/python2.7/dist-packages/scapy/arch/init.py", line 51, in get_if_hwaddr
addrfamily, mac = get_if_raw_hwaddr(iff)
File "/usr/lib/python2.7/dist-packages/scapy/arch/linux.py", line 95, in get_if_raw_hwaddr
return struct.unpack("16xh6s8x",get_if(iff,SIOCGIFHWADDR))
File "/usr/lib/python2.7/dist-packages/scapy/arch/common.py", line 19, in get_if
ifreq = ioctl(sck, cmd, struct.pack("16s16x", iff))
IOError: [Errno 19] No such device
This is the error that i am getting when i change the interface name in hostapd.conf. Can u suggest me a solution for this error??
Today is 03.11.2017 so where is script?:)
Hi. I want to know how does KrackAttacks works.
I can download it and use it or is just a code?
,,,
According to the video, attacking device must also be logged first on the wifi network, and the target also.
Re-routing packets is very old trick
https://lirias.kuleuven.be/bitstream/123456789/547640/1/usenix2016-wifi.pdf
Also from 2016 -- Nonce-Disrespecting Adversaries: Practical
Forgery Attacks on GCM in TLS
https://eprint.iacr.org/2016/475.pdf
Check against Chrome Canary MITM detection
https://www.bleepingcomputer.com/news/security/google-chrome-will-soon-warn-you-of-software-that-performs-mitm-attacks/
Decryption of WEP and WAP
https://github.com/ICSec/pyDot11
Only very few devices are vulnerable.
hi, when we can see source of POC
First, thank you for your contributions to information security.
Many organizations are trying to understand how to fully mitigate this vulnerability. It is very clear that there is an inherent issue with the 4-way handshake as defined in the standard. However, it is unclear how this can be effectively mitigated. Obviously, patching ALL supplicants and authenticators will address the issue. But, it would be very helpful to understand where organizations can focus their efforts for best risk reduction.
From the paper, it appears that the wireless controllers can effectively prevent the client from using old replay counter. But, it is not clear (for those of us less familiar with the nuances of this technology) to understand exactly what is vulnerable and where the issue can be mitigated.
I think something like the below table would provide an incredible value to organizations (IT/Security Teams), helping us understand the risk and prioritize efforts. The table is meant to answer the question: "Which CVEs require me to patch just my authenticators to protect my network? Which ones require both?"
Some example values are filled in for each CVE to show what I was thinking.
CVE | Vulnerable Component | Patch Needed |
---|---|---|
CVE-2017-13077 | Both | Supplicant |
CVE-2017-13078 | Supplicant | Either |
CVE-2017-13079 | Authenticator | Both |
CVE-2017-13080 | ||
CVE-2017-13081 | ||
CVE-2017-13082 | ||
CVE-2017-13084 | ||
CVE-2017-13086 | ||
CVE-2017-13087 | ||
CVE-2017-13088 |
Secton 6.1, first paragraph.
Regarding CCMP (not TKIP) the packet number/nonce/replay counter initializes to 1, not 0 as the section 2.4 says.
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