CVE-2023-6680

Improper Certificate Validation in GitLab

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.

Remediation

Solution:

  • Upgrade to versions 16.4.4, 16.5.4, 16.6.2 or above.

Category

7.4
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Affected: GitLab GitLab
Published at:
Updated at:

References

Link Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/421607 issue tracking broken link

Frequently Asked Questions

What is the severity of CVE-2023-6680?
CVE-2023-6680 has been scored as a high severity vulnerability.
How to fix CVE-2023-6680?
To fix CVE-2023-6680: Upgrade to versions 16.4.4, 16.5.4, 16.6.2 or above.
Is CVE-2023-6680 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-6680 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-6680?
CVE-2023-6680 affects GitLab GitLab.
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