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Category:   Application (Generic)  >   wpa_supplicant Vendors:   Malinen, Jouni et al
(CentOS Issues Fix) wpa_supplicant WPA/WPA2 Protocol Key Reinstallation Attack Lets Remote Users Access and Modify Data on the Target Wireless Network
SecurityTracker Alert ID:  1039610
SecurityTracker URL:  http://securitytracker.com/id/1039610
CVE Reference:   CVE-2017-13077, CVE-2017-13078, CVE-2017-13080, CVE-2017-13082, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088   (Links to External Site)
Date:  Oct 18 2017
Impact:   Disclosure of system information, Disclosure of user information, Modification of system information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 2.6 and prior
Description:   Multiple vulnerabilities were reported in wpa_supplicant. A remote user on the wireless network can access and modify data on the wireless network.

A remote user within range of the wireless network can record and replay retransmissions of part of the 802.11i 4-way handshake of the WPA and WPA2 protocols to force a reinstallation of the pairwise transient key, a group key, or an integrity key and force a reset of the incremental transmit packet number nonce and the receive replay counter. As a result, the remote user can replay encrypted packets, decrypt packets, and forge packets.

Both client systems and access points are affected.

A remote user on the wireless network can reinstall the pairwise encryption key (PTK-TK) [CVE-2017-13077].

A remote user on the wireless network can reinstall the group key (GTK) [CVE-2017-13078, CVE-2017-13080].

A remote user on the wireless network can reinstall the integrity group key (IGTK) [CVE-2017-13079, CVE-2017-13081].

A remote user on the wireless network can retransmit the Fast BSS Transition (FT) Reassociation Request and reinstall the pairwise encryption key (PTK-TK) [CVE-2017-13082].

A remote user on the wireless network can reinstall the Tunneled Direct-Link Setup (TDLS) PeerKey (TPK) key in the TDLS handshake [CVE-2017-13086].

A remote user on the wireless network can reinstall the group key (GTK) when processing a Wireless Network Management (WNM) Sleep Mode Response frame [CVE-2017-13087].

A remote user on the wireless network can reinstall the integrity group key (IGTK) when processing a Wireless Network Management (WNM) Sleep Mode Response frame [CVE-2017-13088].

This set of vulnerabilities is referred to as KRACK (Key Reinstallation AttaCK).

The original advisory is available at:

https://papers.mathyvanhoef.com/ccs2017.pdf

Additional information is available at:

https://www.krackattacks.com/

Mathy Vanhoef and Frank Piessens from Katholieke Universiteit Leuven reported these vulnerabilities. John Van Boxtel from Cypress reported one vulnerability.

[Editor's note: The vulnerabilities reside in the WPA and WPA2 protocol specification and are not due to incorrect vendor implementation of the standards.]

Impact:   A remote user on the wireless network can access and modify data on the wireless network.
Solution:   CentOS has issued a fix for CVE-2017-13077, CVE-2017-13078, CVE-2017-13080, CVE-2017-13082, CVE-2017-13086, CVE-2017-13087, and CVE-2017-13088.

x86_64:
bcb982dc33b01aeb8b0807cee6d6b07bfe0ca020fda96d2b64e34e6912daa698 wpa_supplicant-2.6-5.el7_4.1.x86_64.rpm

Source:
d19567c0ecc7a639590f1ebd018618a7e061c42c7549fb60070d6f6581efa71b wpa_supplicant-2.6-5.el7_4.1.src.rpm

Cause:   Access control error, State error
Underlying OS:  Linux (CentOS)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
Oct 16 2017 wpa_supplicant WPA/WPA2 Protocol Key Reinstallation Attack Lets Remote Users Access and Modify Data on the Target Wireless Network



 Source Message Contents

Subject:  [CentOS-announce] CESA-2017:2907 Important CentOS 7 wpa_supplicant Security Update


CentOS Errata and Security Advisory 2017:2907 Important

Upstream details at : https://access.redhat.com/errata/RHSA-2017:2907

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 

x86_64:
bcb982dc33b01aeb8b0807cee6d6b07bfe0ca020fda96d2b64e34e6912daa698  wpa_supplicant-2.6-5.el7_4.1.x86_64.rpm

Source:
d19567c0ecc7a639590f1ebd018618a7e061c42c7549fb60070d6f6581efa71b  wpa_supplicant-2.6-5.el7_4.1.src.rpm



-- 
Johnny Hughes
CentOS Project { http://www.centos.org/ }
irc: hughesjr, #centos@irc.freenode.net
Twitter: @JohnnyCentOS

_______________________________________________
CentOS-announce mailing list
CentOS-announce@centos.org
https://lists.centos.org/mailman/listinfo/centos-announce
 
 


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