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CVE-2023-6680

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CVE-2023-6680

Published: Dec 15, 2023

Modified: May 12, 2026

PUBLISHED

CVSS v3.1

7.4

HIGH

Description

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.

VendorProductVersions

GitLab

GitLab

affected
11.6 - < 16.4.4
affected
16.5 - < 16.5.4
affected
16.6 - < 16.6.2

Weaknesses (CWE)

CWE-295

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

References

GitLab Issue #421607
issue-tracking
permissions-required

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