Detections
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GLSA-202104-01 : Git: User-assisted execution of arbitrary code

high Nessus Plugin ID 149221

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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-202104-01 (Git: User-assisted execution of arbitrary code)

 It was discovered that Git could be fooled into running remote code during a clone on case-insensitive file systems with support for symbolic links, if Git is configured globally to apply delay-capable clean/smudge filters (such as Git LFS).
 Impact :

 A remote attacker could entice a user to clone a specially crafted repository, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the application.
 Workaround :

 There is no known workaround at this time.

Solution

All Git users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=dev-vcs/git-2.26.3'

See Also

https://security.gentoo.org/glsa/202104-01

Plugin Details

Severity: High

ID: 149221

File Name: gentoo_GLSA-202104-01.nasl

Version: 1.5

Type: local

Published: 5/3/2021

Updated: 1/12/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.2

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

CVSS Score Source: CVE-2021-21300

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

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

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

Vulnerability Information

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

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: 4/30/2021

Vulnerability Publication Date: 3/9/2021

Exploitable With

Metasploit (Git LFS Clone Command Exec)

Reference Information

CVE: CVE-2021-21300

GLSA: 202104-01