CVE-2017-14867

Ubuntu Security Notice USN-3438-1

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Git before 2.10.5, 2.11.x before 2.11.4, 2.12.x before 2.12.5, 2.13.x before 2.13.6, and 2.14.x before 2.14.2 uses unsafe Perl scripts to support subcommands such as cvsserver, which allows attackers to execute arbitrary OS commands via shell metacharacters in a module name. The vulnerable code is reachable via git-shell even without CVS support.

Git en versiones anteriores a la 2.10.5, las versiones 2.11.x anteriores a 2.11.4, las 2.12.x anteriores a2.12.5, las 2.13.x anteriores a 2.13.6 y las 2.14.x anteriores a 2.14.2 emplean scripts de Perl no seguros para dar soporte a subcomandos como cvsserver. Esto permite que los atacantes ejecuten comandos arbitrarios del sistema operativo mediante metacaracteres shell en un nombre de módulo. El código vulnerable puede alcanzarse mediante git-shell incluso sin soporte para CVS.

It was discovered that Git incorrectly handled certain subcommands such as cvsserver. A remote attacker could possibly use this issue via shell metacharacters in modules names to execute arbitrary code. This update also removes the cvsserver subcommand from git-shell by default.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-09-28 CVE Reserved
2017-09-28 CVE Published
2024-08-05 CVE Updated
2025-04-14 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CAPEC

References (7)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2017/09/26/9	Mailing List
http://www.securityfocus.com/bid/101060	Third Party Advisory
http://www.securitytracker.com/id/1039431	Third Party Advisory
https://bugs.debian.org/876854	Issue Tracking
https://lists.debian.org/debian-security-announce/2017/msg00246.html	Mailing List
https://public-inbox.org/git/xmqqy3p29ekj.fsf%40gitster.mtv.corp.google.com/T/#u	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.debian.org/security/2017/dsa-3984	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				<= 2.10.4 Search vendor "Git-scm" for product "Git" and version " <= 2.10.4"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.11.0 Search vendor "Git-scm" for product "Git" and version "2.11.0"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.11.1 Search vendor "Git-scm" for product "Git" and version "2.11.1"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.11.2 Search vendor "Git-scm" for product "Git" and version "2.11.2"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.11.3 Search vendor "Git-scm" for product "Git" and version "2.11.3"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.12.0 Search vendor "Git-scm" for product "Git" and version "2.12.0"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.12.1 Search vendor "Git-scm" for product "Git" and version "2.12.1"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.12.2 Search vendor "Git-scm" for product "Git" and version "2.12.2"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.12.3 Search vendor "Git-scm" for product "Git" and version "2.12.3"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.12.4 Search vendor "Git-scm" for product "Git" and version "2.12.4"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.13.0 Search vendor "Git-scm" for product "Git" and version "2.13.0"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.13.1 Search vendor "Git-scm" for product "Git" and version "2.13.1"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.13.2 Search vendor "Git-scm" for product "Git" and version "2.13.2"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.13.3 Search vendor "Git-scm" for product "Git" and version "2.13.3"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.13.4 Search vendor "Git-scm" for product "Git" and version "2.13.4"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.13.5 Search vendor "Git-scm" for product "Git" and version "2.13.5"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.14.0 Search vendor "Git-scm" for product "Git" and version "2.14.0"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.14.1 Search vendor "Git-scm" for product "Git" and version "2.14.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected