Bug 1491696 (CVE-2017-13080) - CVE-2017-13080 wpa_supplicant: Reinstallation of the group key in the group key handshake
Summary: CVE-2017-13080 wpa_supplicant: Reinstallation of the group key in the group k...
Status: CLOSED ERRATA
Alias: CVE-2017-13080
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact: Ken Benoit
URL:
Whiteboard: impact=important,public=20171016,repo...
Keywords: Security
Depends On: 1495527 1495528 1495530 1495531 1502588 1502589
Blocks: 1491701 1516327
TreeView+ depends on / blocked
 
Reported: 2017-09-14 12:31 UTC by Adam Mariš
Modified: 2019-06-08 22:21 UTC (History)
10 users (show)

(edit)
A new exploitation technique called key reinstallation attacks (KRACK) affecting WPA2 has been discovered. A remote attacker within Wi-Fi range could exploit this attack to decrypt Wi-Fi traffic or possibly inject forged Wi-Fi packets by reinstalling a previously used group key (GTK) during a group key handshake.
Clone Of:
(edit)
Last Closed: 2017-10-19 08:47:50 UTC


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2907 normal SHIPPED_LIVE Important: wpa_supplicant security update 2017-10-18 01:38:59 UTC
Red Hat Product Errata RHSA-2017:2911 normal SHIPPED_LIVE Important: wpa_supplicant security update 2017-10-18 20:12:37 UTC

Description Adam Mariš 2017-09-14 12:31:53 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 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 12:31:57 UTC
Acknowledgments:

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

Comment 9 Andrej Nemec 2017-10-16 09:42:46 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 13 errata-xmlrpc 2017-10-17 21:40:14 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:2907 https://access.redhat.com/errata/RHSA-2017:2907

Comment 14 Stefan Cornelius 2017-10-18 08:49:31 UTC
Statement:

This issue affects the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 5, 6, and 7.

Comment 15 errata-xmlrpc 2017-10-18 16:13:36 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:2911 https://access.redhat.com/errata/RHSA-2017:2911


Note You need to log in before you can comment on or make changes to this bug.