Detections
Analytics

GLSA-201201-15 : ktsuss: Privilege escalation

critical Nessus Plugin ID 57721

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201201-15 (ktsuss: Privilege escalation)

 Two vulnerabilities have been found in ktuss:
 Under specific circumstances, ktsuss skips authentication and fails to change the effective UID back to the real UID (CVE-2011-2921).
 The GTK interface spawned by the ktsuss binary is run as root (CVE-2011-2922).
 Impact :

 A local attacker could gain escalated privileges and use the 'GTK_MODULES' environment variable to possibly execute arbitrary code with root privileges.
 Workaround :

 There is no known workaround at this time.

Solution

Gentoo discontinued support for ktsuss. We recommend that users unmerge ktsuss:
 # emerge --unmerge 'x11-misc/ktsuss'

See Also

https://security.gentoo.org/glsa/201201-15

Plugin Details

Severity: Critical

ID: 57721

File Name: gentoo_GLSA-201201-15.nasl

Version: 1.11

Type: local

Published: 1/30/2012

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:ktsuss, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 1/27/2012

Vulnerability Publication Date: 11/19/2019

Exploitable With

Metasploit (ktsuss suid Privilege Escalation)

Reference Information

CVE: CVE-2011-2921, CVE-2011-2922

BID: 49151

GLSA: 201201-15