Bug 1491697 (CVE-2017-13081)

Summary: CVE-2017-13081 wpa_supplicant: Reinstallation of the integrity group key in the group key handshake
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact: Ken Benoit <kbenoit>
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: bgalvani, blueowl, dcaratti, dcbw, linville, lkundrak, negativo17, security-response-team, sukulkar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-10-19 08:45:42 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1502588, 1502589    
Bug Blocks: 1491701, 1516327    

Description Adam Mariš 2017-09-14 12:32:02 UTC
A new exploitation technique called key reinstallation attacks used to break Wi-Fi handshakes that negotiate session keys was discovered. These attacks target the Wi-Fi/WPA2 standard. An adversary can trick a client or Access Point (AP) into reinstalling an already-in use integrity group key in the group key handshake. While reinstalling the already in-use key, the associated packet number (sometimes also called nonce) and receive replay counter is reset. This causes nonce reuse, voiding any security the underlying encryption protocol is supposed to provide. For example, it allows decryption or injection of frames, and enables an attacker to replay frames.

Comment 1 Adam Mariš 2017-09-14 12:32:06 UTC

Name: CERT
Upstream: Mathy Vanhoef (University of Leuven)

Comment 8 Andrej Nemec 2017-10-16 09:42:12 UTC
Created hostapd tracking bugs for this issue:

Affects: fedora-all [bug 1502588]

Created wpa_supplicant tracking bugs for this issue:

Affects: fedora-all [bug 1502589]

Comment 12 Stefan Cornelius 2017-10-18 08:49:45 UTC

This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 5, 6, and 7, as CONFIG_IEEE80211W was not enabled.