CVE-2021-22171

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link

Una comprobación insuficiente de los parámetros de autenticación en GitLab Pages para GitLab versiones 11.5+, permite a un atacante robar el token de la API de una víctima si hace clic en un enlace diseñado con fines maliciosos

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

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-05 CVE Reserved
2021-01-15 CVE Published
2024-08-03 CVE Updated
2024-11-19 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source
https://gitlab.com/gitlab-org/gitlab-pages/-/issues/262	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22171.json	2021-01-22

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"				>= 11.5.0 < 13.5.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 11.5.0 < 13.5.6"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 11.5.0 < 13.5.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 11.5.0 < 13.5.6"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 13.6.0 < 13.6.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 13.6.0 < 13.6.4"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 13.6.0 < 13.6.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 13.6.0 < 13.6.4"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 13.7.0 < 13.7.2 Search vendor "Gitlab" for product "Gitlab" and version " >= 13.7.0 < 13.7.2"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 13.7.0 < 13.7.2 Search vendor "Gitlab" for product "Gitlab" and version " >= 13.7.0 < 13.7.2"		enterprise		Affected