Detections
Analytics
RHEL 6 : wpa_supplicant (RHSA-2017:2911)
medium Nessus Plugin ID 103958
Language:
Synopsis
The remote Red Hat host is missing one or more security updates for wpa_supplicant.Description
The remote Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2017:2911 advisory.The wpa_supplicant packages contain an 802.1X Supplicant with support for WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authentication methods. They implement key negotiation with a WPA Authenticator for client stations and controls the roaming and IEEE 802.11 authentication and association of the WLAN driver.
Security Fix(es):
* A new exploitation technique called key reinstallation attacks (KRACK) affecting WPA2 has been discovered. A remote attacker within Wi-Fi range could exploit these attacks to decrypt Wi-Fi traffic or possibly inject forged Wi-Fi packets by manipulating cryptographic handshakes used by the WPA2 protocol.
(CVE-2017-13077, CVE-2017-13078, CVE-2017-13080, CVE-2017-13087)
Red Hat would like to thank CERT for reporting these issues. Upstream acknowledges Mathy Vanhoef (University of Leuven) as the original reporter of these issues.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL wpa_supplicant package based on the guidance in RHSA-2017:2911.See Also
http://www.nessus.org/u?bffa1ea0
https://access.redhat.com/security/vulnerabilities/kracks
https://bugzilla.redhat.com/show_bug.cgi?id=1491692
https://bugzilla.redhat.com/show_bug.cgi?id=1491693
https://bugzilla.redhat.com/show_bug.cgi?id=1491696
https://bugzilla.redhat.com/show_bug.cgi?id=1500303
https://access.redhat.com/errata/RHSA-2017:2911
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: Medium
ID: 103958
File Name: redhat-RHSA-2017-2911.nasl
Version: 3.19
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 10/19/2017
Updated: 11/5/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 5.4
Temporal Score: 4
Vector: CVSS2#AV:A/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2017-13077
CVSS v3
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:wpa_supplicant, cpe:/o:redhat:enterprise_linux:6
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 10/18/2017
Vulnerability Publication Date: 10/17/2017
Reference Information
CVE: CVE-2017-13077, CVE-2017-13078, CVE-2017-13080, CVE-2017-13087