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gentooGentoo FoundationGLSA-202201-01
HistoryJan 27, 2022 - 12:00 a.m.

Polkit: Local privilege escalation

2022-01-2700:00:00
Gentoo Foundation
security.gentoo.org
59

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0005 Low

EPSS

Percentile

15.6%

JSON

Background

polkit is a toolkit for managing policies related to unprivileged processes communicating with privileged process.

Description

Flawed input validation of arguments was discovered in the ‘pkexec’ program’s main() function.

Impact

A local attacker could achieve root privilege escalation.

Workaround

Run the following command as root: # chmod 0755 /usr/bin/pkexec

Resolution

Upgrade Polkit to a patched version.

			# emerge --sync
			# emerge --ask --verbose ">=sys-auth/polkit-0.120-r2"
OSVersionArchitecturePackageVersionFilename
Gentooanyallsys-auth/polkit< 0.120-r2UNKNOWN

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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0005 Low

EPSS

Percentile

15.6%

JSON
Related for GLSA-202201-01
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