// For flags

CVE-2023-6680

Improper Certificate Validation in GitLab

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An improper certificate validation issue in Smartcard authentication in GitLab EE affecting all versions from 11.6 prior to 16.4.4, 16.5 prior to 16.5.4, and 16.6 prior to 16.6.2 allows an attacker to authenticate as another user given their public key if they use Smartcard authentication. Smartcard authentication is an experimental feature and has to be manually enabled by an administrator.

Un problema de validación de certificado incorrecto en la autenticación de tarjeta inteligente en GitLab EE que afecta a todas las versiones desde 11.6 anterior a 16.4.4, 16.5 anterior a 16.5.4 y 16.6 anterior a 16.6.2 permite a un atacante autenticarse como otro usuario dada su clave pública si utilizar la autenticación con tarjeta inteligente. La autenticación con tarjeta inteligente es una función experimental y un administrador debe habilitarla manualmente.

*Credits: Thanks Lucas Serrano from PEReN (@LSerranoPEReN) for reporting this vulnerability
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-12-11 CVE Reserved
  • 2023-12-15 CVE Published
  • 2023-12-20 EPSS Updated
  • 2024-08-29 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-295: Improper Certificate Validation
CAPEC
References (1)
URL Tag Source
https://gitlab.com/gitlab-org/gitlab/-/issues/421607 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"
 >= 11.6 < 16.4.4
Search vendor "Gitlab" for product "Gitlab" and version " >= 11.6 < 16.4.4"
enterprise
Affected
Gitlab
Search vendor "Gitlab"
 Gitlab
Search vendor "Gitlab" for product "Gitlab"
 >= 16.5 < 16.5.4
Search vendor "Gitlab" for product "Gitlab" and version " >= 16.5 < 16.5.4"
enterprise
Affected
Gitlab
Search vendor "Gitlab"
 Gitlab
Search vendor "Gitlab" for product "Gitlab"
 >= 16.6 < 16.6.2
Search vendor "Gitlab" for product "Gitlab" and version " >= 16.6 < 16.6.2"
enterprise
Affected