CVE-2018-11235

git: arbitrary code execution when recursively cloning a malicious repository

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution can occur. With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs "git clone --recurse-submodules" because submodule "names" are obtained from this file, and then appended to $GIT_DIR/modules, leading to directory traversal with "../" in a name. Finally, post-checkout hooks from a submodule are executed, bypassing the intended design in which hooks are not obtained from a remote server.

En Git, en versiones anteriores a la 2.13.7, versiones 2.14.x anteriores a la 2.14.4, versiones 2.15.x anteriores a la 2.15.2, versiones 2.16.x anteriores a la 2.16.4 y versiones 2.17.x anteriores a la 2.17.1, puede ocurrir una ejecución remota de código. Con un archivo .gitmodules manipulado, un proyecto malicioso puede ejecutar un script arbitrario en una máquina que ejecuta "git clone --recurse-submodules" debido a que se obtienen "nombres" de subdominios de este archivo y luego se anexa a $GIT_DIR/modules, lo que conduce a un salto de directorio con "../" en un nombre. Finalmente, se ejecutan hooks post-checkout de un submódulo, omitiendo el diseño planeado en el que no se obtienen hooks de un servidor remoto.

Git is a distributed revision control system with a decentralized architecture. As opposed to centralized version control systems with a client-server model, Git ensures that each working copy of a Git repository is an exact copy with complete revision history. This not only allows the user to work on and contribute to projects without the need to have permission to push the changes to their official repositories, but also makes it possible for the user to work with no network connection. Issues addressed include a code execution vulnerability.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-05-18 CVE Reserved
2018-05-30 CVE Published
2018-05-31 First Exploit
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (29)

URL	Tag	Source
http://www.securityfocus.com/bid/104345	Third Party Advisory
http://www.securitytracker.com/id/1040991	Third Party Advisory
https://marc.info/?l=git&m=152761328506724&w=2	Release Notes

URL	Date	SRC
https://packetstorm.news/files/id/148010	2018-06-01
https://github.com/Rogdham/CVE-2018-11235	2018-06-03
https://github.com/CHYbeta/CVE-2018-11235-DEMO	2018-06-07
https://github.com/qweraqq/CVE-2018-11235-Git-Submodule-CE	2019-04-09
https://github.com/j4k0m/CVE-2018-11235	2021-09-22
https://github.com/knqyf263/CVE-2018-11235	2018-11-23
https://github.com/AnonymKing/CVE-2018-11235	2019-06-22
https://github.com/ygouzerh/CVE-2018-11235	2019-05-14
https://github.com/vmotos/CVE-2018-11235	2018-05-31
https://github.com/xElkomy/CVE-2018-11235	2020-07-12
https://github.com/jhswartz/CVE-2018-11235	2018-06-04
https://github.com/nthuong95/CVE-2018-11235	2020-03-05
https://github.com/Kiss-sh0t/CVE-2018-11235-poc	2018-06-06
https://github.com/jongmartinez/CVE-2018-11235-PoC	2020-10-25
https://github.com/H0K5/clone_and_pwn	2024-08-12
https://github.com/twseptian/cve-2018-11235-git-submodule-ce-and-docker-ngrok-configuration	2022-03-13
https://www.exploit-db.com/exploits/44822	2024-08-05

URL	Date	SRC
https://blogs.msdn.microsoft.com/devops/2018/05/29/announcing-the-may-2018-git-security-vulnerability	2020-05-02

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00003.html	2020-05-02
https://access.redhat.com/errata/RHSA-2018:1957	2020-05-02
https://access.redhat.com/errata/RHSA-2018:2147	2020-05-02
https://security.gentoo.org/glsa/201805-13	2020-05-02
https://usn.ubuntu.com/3671-1	2020-05-02
https://www.debian.org/security/2018/dsa-4212	2020-05-02
https://access.redhat.com/security/cve/CVE-2018-11235	2018-07-10
https://bugzilla.redhat.com/show_bug.cgi?id=1583862	2018-07-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
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
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				17.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "17.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.5 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.5"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				<= 2.13.6 Search vendor "Git-scm" for product "Git" and version " <= 2.13.6"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				>= 2.14.0 <= 2.14.3 Search vendor "Git-scm" for product "Git" and version " >= 2.14.0 <= 2.14.3"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				>= 2.15.0 <= 2.15.1 Search vendor "Git-scm" for product "Git" and version " >= 2.15.0 <= 2.15.1"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				>= 2.16.0 <= 2.16.3 Search vendor "Git-scm" for product "Git" and version " >= 2.16.0 <= 2.16.3"		-		Affected
Git-scm Search vendor "Git-scm"		Git Search vendor "Git-scm" for product "Git"				2.17.0 Search vendor "Git-scm" for product "Git" and version "2.17.0"		-		Affected
Gitforwindows Search vendor "Gitforwindows"		Git Search vendor "Gitforwindows" for product "Git"				<= 2.17.1 Search vendor "Gitforwindows" for product "Git" and version " <= 2.17.1"		-		Affected