Vulnerability CVE-2021-40330

Vulnerability Name:

CVE-2021-40330 (CCN-208468)

Assigned:

2021-08-31

Published:

2021-08-31

Updated:

2022-11-07

Summary:

git_connect_git in connect.c in Git before 2.30.1 allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): None

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

6.4 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): None

Vulnerability Type:

CWE-noinfo

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2021-40330

Source: XF
Type: UNKNOWN
git-cve202140330-sec-bypass(208468)

Source: CCN
Type: GitHub Web site
git_connect_git(): forbid newlines in host and path

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://github.com/git/git/commit/a02ea577174ab8ed18f847cf1693f213e0b9c473

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/git/git/compare/v2.30.0...v2.30.1

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20221010 [SECURITY] [DLA 3145-1] git security update

Source: CCN
Type: IBM Security Bulletin 6610345 (Watson Speech Services Cartridge for Cloud Pak for Data)
IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data is vulnerable to a security restrictions bypass in Git (CVE-2021-40330)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-40330

Vulnerable Configuration:

Configuration 1:

cpe:/a:git-scm:git:*:*:*:*:*:*:*:* (Version < 2.30.1)

Configuration 2:

cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:95399	P	Security update for virglrenderer (Important)	2022-07-14
oval:org.opensuse.security:def:3495	P	librelp-devel-1.2.15-1.15 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94607	P	libXext-devel-1.3.3-1.30 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94917	P	ibus-chewing-1.6.1-1.53 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:101630	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:58851	P	Security update for git (Low)	2021-10-20
oval:org.opensuse.security:def:34571	P	Security update for git (Low)	2021-10-20
oval:org.opensuse.security:def:84227	P	Security update for git (Low)	2021-10-20
oval:org.opensuse.security:def:60394	P	Security update for git (Low)	2021-10-20
oval:org.opensuse.security:def:26153	P	Security update for git (Low)	2021-10-20
oval:org.opensuse.security:def:87492	P	Security update for git (Low)	2021-10-20
oval:org.opensuse.security:def:33028	P	Security update for git (Low)	2021-10-20
oval:org.opensuse.security:def:111081	P	Security update for git (Low)	2021-10-11
oval:org.opensuse.security:def:66940	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:73706	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:108778	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:111737	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:102112	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:74665	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:64584	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:4508	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:107986	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:76008	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:101320	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:65597	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:5851	P	Security update for git (Low)	2021-10-06
oval:org.opensuse.security:def:108296	P	Security update for git (Low)	2021-10-06

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