hi, when we can see source of POC

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.

Regarding CCMP (not TKIP) the packet number/nonce/replay counter initializes to 1, not 0 as the section 2.4 says.

Today is 03.11.2017 so where is script?:)

Hi all.
What are you thinking about authorization by certificate? (WPA2-Ent + cert sign-on)
Are this solve this issue or not?

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.

[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??

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.

i have this problem with script:
connect exception hostapd_ctrl/wlan0 9877
please a need help for solve this.

https://github.com/vanhoefm/krackattacks-test-ap-ft

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

,,,

Hi. I want to know how does KrackAttacks works.
I can download it and use it or is just a code?

Secton 6.1, first paragraph.