CVE-2021-39896

Severity Score

3.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In all versions of GitLab CE/EE since version 8.0, when an admin uses the impersonate feature twice and stops impersonating, the admin may be logged in as the second user they impersonated, which may lead to repudiation issues.

En todas las versiones de GitLab CE/EE desde la versión 8.0, cuando un administrador usa la funcionalidad de suplantación dos veces y deja de hacerlo, el administrador puede iniciar sesión como el segundo usuario al que suplantó, lo que puede conllevar a problemas de repudio

*Credits: This vulnerability was reported to GitLab by a customer.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-23 CVE Reserved
2021-10-04 CVE Published
2023-04-27 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source
https://gitlab.com/gitlab-org/gitlab/-/issues/339362	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json	2021-10-12

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"				>= 8.0.0 < 14.1.7 Search vendor "Gitlab" for product "Gitlab" and version " >= 8.0.0 < 14.1.7"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 8.0.0 < 14.1.7 Search vendor "Gitlab" for product "Gitlab" and version " >= 8.0.0 < 14.1.7"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.2 < 14.2.5 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.2 < 14.2.5"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.2 < 14.2.5 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.2 < 14.2.5"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.3 < 14.3.1 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.3 < 14.3.1"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.3 < 14.3.1 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.3 < 14.3.1"		enterprise		Affected