KRACK attack on WPA2

[Johannes_Dennin]

Hello everyone,
I have some questions due to the expected disclosure today on the attack possible on WPA2 SSIDs.

US-CERT has become aware of several key management vulnerabilities in the 4-way handshake of the Wi-Fi Protected Access II (WPA2) security protocol. The impact of exploiting these vulnerabilities includes decryption, packet replay, TCP connection hijacking, HTTP content injection, and others. Note that as protocol-level issues, most or all correct implementations of the standard will be affected. The CERT/CC and the reporting researcher KU Leuven, will be publicly disclosing these vulnerabilities on 16 October 2017.

Link: https://arstechnica.com/information-technology/2017/10/severe-flaw-in-wpa2-protocol-leaves-wi-fi-tra...

- Is Extreme aware of this?
- Are Fixes ready to be released?
- Is a software fix sufficient or does hardware need to be replaced?

Thanks and best regards,

Johannes

[Karol_Radosovsk]

I suppose, engineering team would be releasing patches not only to latest WING firmware (5.9.1) but also to previous series (i.e. 5.8.4) as we have some VX-based installations with multiple types of APs in place (622,650,75xx). Thanks for confirmation.

[Drew_C]

Extreme Networks was notified by the CERT regarding the KRACK vulnerability, which was subsequently communicated to the Engineering team. The team is working on a solution to be completed by end of this week (10/20). We are reviewing procedures to confirm vulnerability response urgency meets expectations. Thanks for your patience.

[Johannes_Dennin]

I'm curious too. Could someone from Extreme shed some light on this?

[JP4]

This is my concern as well. Many other major vendors had a fix that was already put into previous updates or was released yesterday. I would have expected the same from Extreme, but that doesn't seem to be the case.

[Steve_Burke]

Extreme was notified in August like the other vendors. https://www.kb.cert.org/vuls/id/228519/

https://www.kb.cert.org/vuls/id/CHEU-AQNN43