PT-2021-8149 · Git+5 · Git+5

Harold Kim · CVE-2021-40330 · Published 2021-01-07 · Updated 2023-07-05

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Git versions prior to 2.30.1

Description The issue is related to the git connect git function in the connect.c component of the Git distributed version control system. It allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests. This is demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.

Recommendations For Git versions prior to 2.30.1, update to version 2.30.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the git connect git function in the connect.c component until a patch is available. Avoid using repository paths that contain newline characters in the affected API endpoint until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2021-2336

ALT-PU-2021-3280

ALT-PU-2023-4135

BDU:2024-09034

CVE-2021-40330

DLA-3145-1

OESA-2021-1345

OPENSUSE-SU-2021:1345-1

OPENSUSE-SU-2021:3300-1

OPENSUSE-SU-2021_1345-1

OPENSUSE-SU-2021_3300-1

SUSE-SU-2021:3300-1

SUSE-SU-2021:3484-1

SUSE-SU-2021_3300-1

SUSE-SU-2021_3484-1

USN-5076-1

Affected Products

Alt Linux

Astra Linux

Git

Linuxmint

Suse

Ubuntu

References · 33

• 🔥 https://github.com/git/git/commit/a02ea577174ab8ed18f847cf1693f213e0b9c473 · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/git_lfs_clone_command_exec.rb · Exploit
• 🔥 https://github.com/ethiack/CVE-2023-29007 · Exploit
• 🔥 https://github.com/ssst0n3/docker-cve-2022-39253-poc · Exploit
• https://github.com/git/git/compare/v2.30.0...v2.30.1 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-40330 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-40330 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40330 · Security Note
• https://osv.dev/vulnerability/USN-5076-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:3300-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5076-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-40330 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:3300-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-09034 · Security Note
• https://osv.dev/vulnerability/OESA-2021-1345 · Vendor Advisory