CVE-2023-3915

Incorrect Execution-Assigned Permissions in GitLab

Severity Score

7.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

An issue has been discovered in GitLab EE affecting all versions starting from 16.1 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. If an external user is given an owner role on any group, that external user may escalate their privileges on the instance by creating a service account in that group. This service account is not classified as external and may be used to access internal projects.

Se ha descubierto un problema en GitLab EE que afecta a todas las versiones a partir de la 16.1 antes de la 16.1.5, todas las versiones a partir de la 16.2 antes de la 16.2.5 y todas las versiones a partir de la 16.3 antes de la 16.3.1. Si a un usuario externo se le otorga un rol de propietario en cualquier grupo, ese usuario externo puede escalar sus privilegios en la instancia creando una cuenta de servicio en ese grupo. Esta cuenta de servicio no se clasifica como externa y puede utilizarse para acceder a proyectos internos.

*Credits: Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

Poc

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-07-25 CVE Reserved
2023-09-01 CVE Published
2024-09-07 EPSS Updated
2024-09-18 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-279: Incorrect Execution-Assigned Permissions
CWE-732: Incorrect Permission Assignment for Critical Resource

CAPEC

References (1)

URL	Tag	Source
https://gitlab.com/gitlab-org/gitlab/-/issues/417664	Broken Link

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
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 16.1.0 < 16.1.5 Search vendor "Gitlab" for product "Gitlab" and version " >= 16.1.0 < 16.1.5"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 16.1.0 < 16.1.5 Search vendor "Gitlab" for product "Gitlab" and version " >= 16.1.0 < 16.1.5"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 16.2 < 16.2.5 Search vendor "Gitlab" for product "Gitlab" and version " >= 16.2 < 16.2.5"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 16.2 < 16.2.5 Search vendor "Gitlab" for product "Gitlab" and version " >= 16.2 < 16.2.5"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				16.3.0 Search vendor "Gitlab" for product "Gitlab" and version "16.3.0"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				16.3.0 Search vendor "Gitlab" for product "Gitlab" and version "16.3.0"		enterprise		Affected