CVE-2023-6680

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.

SeverityHigh
CVSS7.4
Exploit probability—
ProductGitlab
PublishedDec 15, 2023
First seenDec 15, 2023
Weakness typeCWE-295CWE-295

How to fix

Update
  • gitlab gitlab16.4.4, 16.5.4, 16.6.2 or later

Affected products

ProductAffected versionsFixed in
gitlab gitlab11.6 ≤ v < 16.4.4, 16.5 ≤ v < 16.5.4, 16.6 ≤ v < 16.6.216.4.4, 16.5.4, 16.6.2

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