CVE-2024-50349

Git does not sanitize URLs when asking for credentials interactively

Severity Score

2.1

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. When Git asks for credentials via a terminal prompt (i.e. without using any credential helper), it prints out the host name for which the user is expected to provide a username and/or a password. At this stage, any URL-encoded parts have been decoded already, and are printed verbatim. This allows attackers to craft URLs that contain ANSI escape sequences that the terminal interpret to confuse users e.g. into providing passwords for trusted Git hosting sites when in fact they are then sent to untrusted sites that are under the attacker's control. This issue has been patch via commits `7725b81` and `c903985` which are included in release versions v2.48.1, v2.47.1, v2.46.3, v2.45.3, v2.44.3, v2.43.6, v2.42.4, v2.41.3, and v2.40.4. Users are advised to upgrade. Users unable to upgrade should avoid cloning from untrusted URLs, especially recursive clones.

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. When Git asks for credentials via a terminal prompt (i.e. without using any credential helper), it prints out the host name for which the user is expected to provide a username and/or a password. At this stage, any URL-encoded parts have been decoded already, and are printed verbatim. This allows attackers to craft URLs that contain ANSI escape sequences that the terminal interpret to confuse users e.g. into providing passwords for trusted Git hosting sites when in fact they are then sent to untrusted sites that are under the attacker's control. This issue has been patch via commits `7725b81` and `c903985` which are included in release versions v2.48.1, v2.47.2, v2.46.3, v2.45.3, v2.44.3, v2.43.6, v2.42.4, v2.41.3, and v2.40.4. Users are advised to upgrade. Users unable to upgrade should avoid cloning from untrusted URLs, especially recursive clones.

It was discovered that Git incorrectly handled certain URLs when asking for credentials. An attacker could possibly use this issue to mislead the user into typing passwords for trusted sites that would then be sent to untrusted sites instead. It was discovered that git incorrectly handled line endings when using credential helpers.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Attack Requirements

Present

Privileges Required

None

User Interaction

Active

System

Vulnerable | Subsequent

Confidentiality

None

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-10-22 CVE Reserved
2025-01-14 CVE Published
2025-01-15 EPSS Updated
2025-01-21 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-116: Improper Encoding or Escaping of Output
CWE-147: Improper Neutralization of Input Terminators
CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences

CAPEC

References (3)

URL	Tag	Source
https://github.com/git/git/commit/7725b8100ffbbff2750ee4d61a0fcc1f53a086e8	X_refsource_misc
https://github.com/git/git/commit/c903985bf7e772e2d08275c1a95c8a55ab011577	X_refsource_misc
https://github.com/git/git/security/advisories/GHSA-hmg8-h7qf-7cxr	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				<= 2.40.3 Search vendor "Git" for product "Git" and version " <= 2.40.3"		en		Affected
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				>= 2.41.0 <= 2.41.2 Search vendor "Git" for product "Git" and version " >= 2.41.0 <= 2.41.2"		en		Affected
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				>= 2.42.0 <= 2.42.3 Search vendor "Git" for product "Git" and version " >= 2.42.0 <= 2.42.3"		en		Affected
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				>= 2.43.0 <= 2.43.5 Search vendor "Git" for product "Git" and version " >= 2.43.0 <= 2.43.5"		en		Affected
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				>= 2.44.0 <= 2.44.2 Search vendor "Git" for product "Git" and version " >= 2.44.0 <= 2.44.2"		en		Affected
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				>= 2.45.0 <= 2.45.2 Search vendor "Git" for product "Git" and version " >= 2.45.0 <= 2.45.2"		en		Affected
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				>= 2.46.0 <= 2.46.2 Search vendor "Git" for product "Git" and version " >= 2.46.0 <= 2.46.2"		en		Affected
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				>= 2.47.0 < 2.47.2 Search vendor "Git" for product "Git" and version " >= 2.47.0 < 2.47.2"		en		Affected
Git Search vendor "Git"		Git Search vendor "Git" for product "Git"				2.48.0 Search vendor "Git" for product "Git" and version "2.48.0"		en		Affected