CVE-2021-39891

Severity Score

4.9

*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, access tokens created as part of admin's impersonation of a user are not cleared at the end of impersonation which may lead to unnecessary sensitive info disclosure.

En todas las versiones de GitLab CE/EE desde la versión 8.0, los tokens de acceso creados como parte de la suplantación de un usuario por parte del administrador no se borran al final de la suplantación, lo que puede conllevar a una divulgación innecesaria de información confidencial

*Credits: This vulnerability was found internally by a member of the GitLab team.

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

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
2021-10-05 CVE Published
2023-04-28 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer

CAPEC

References (2)

URL	Tag	Source
https://gitlab.com/gitlab-org/gitlab/-/issues/335137	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39891.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"				>= 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"				>= 14.2.0 < 14.2.5 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.2.0 < 14.2.5"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.2.0 < 14.2.5 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.2.0 < 14.2.5"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.3.0 < 14.3.1 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.3.0 < 14.3.1"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.3.0 < 14.3.1 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.3.0 < 14.3.1"		enterprise		Affected