Detections
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GLSA-202107-31 : polkit: Privilege escalation

high Nessus Plugin ID 156969

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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-202107-31 (polkit: Privilege escalation)

 The function polkit_system_bus_name_get_creds_sync() was called without checking for error, and as such temporarily treats the authentication request as coming from root.
 Impact :

 Please review the referenced CVE identifiers for details.
 Workaround :

 There is no known workaround at this time.

Solution

All polkit users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=sys-auth/polkit-0.119'

See Also

https://security.gentoo.org/glsa/202107-31

Plugin Details

Severity: High

ID: 156969

File Name: gentoo_GLSA-202107-31.nasl

Version: 1.7

Type: local

Published: 1/24/2022

Updated: 12/21/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2021-3560

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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

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

Vulnerability Information

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/13/2021

Vulnerability Publication Date: 2/16/2022

CISA Known Exploited Vulnerability Due Dates: 6/2/2023

Exploitable With

Metasploit (Polkit D-Bus Authentication Bypass)

Reference Information

CVE: CVE-2021-3560

GLSA: 202107-31