CVE-2021-39916

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Lack of an access control check in the External Status Check feature allowed any authenticated user to retrieve the configuration of any External Status Check in GitLab EE starting from 14.1 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2.

Una falta de una comprobación de control de acceso en la función de comprobación de estado externa permitía a cualquier usuario autenticado recuperar la configuración de cualquier comprobación de estado externa en GitLab EE a partir de la versión 14.1 anteriores a 14.3.6, todas las versiones a partir de 14.4 anteriores a 14.4.4, todas las versiones a partir de 14.5 anteriores a 14.5.2

*Credits: Thanks @joaxcar for reporting this vulnerability through our HackerOne bug bounty program

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-23 CVE Reserved
2021-12-13 CVE Published
2023-10-30 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-639: Authorization Bypass Through User-Controlled Key

CAPEC

References (2)

URL	Tag	Source
https://gitlab.com/gitlab-org/gitlab/-/issues/343379	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39916.json	2022-07-12

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"				>= 14.1.0 < 14.3.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.1.0 < 14.3.6"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.1.0 < 14.3.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.1.0 < 14.3.6"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.4.0 < 14.4.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.4.0 < 14.4.4"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.4.0 < 14.4.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.4.0 < 14.4.4"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.5.0 < 14.5.2 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.5.0 < 14.5.2"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.5.0 < 14.5.2 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.5.0 < 14.5.2"		enterprise		Affected