PT-2023-8226 · Gitlab · Gitlab Ce/Ee+1

Lucas Serrano · Published 2023-12-15 · Updated 2024-03-06 · CVE-2023-6680

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions GitLab EE versions 11.6 through 16.4.3 GitLab EE versions 16.5 through 16.5.3 GitLab EE versions 16.6 through 16.6.1

Description The issue is related to an improper certificate validation in Smartcard authentication, allowing an attacker to authenticate as another user given their public key if they use Smartcard authentication. This feature is experimental and must be manually enabled by an administrator.

Recommendations For versions 11.6 through 16.4.3, update to version 16.4.4 or later. For versions 16.5 through 16.5.3, update to version 16.5.4 or later. For versions 16.6 through 16.6.1, update to version 16.6.2 or later. As a temporary workaround, consider disabling Smartcard authentication until a patch is available.

Exploit

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

BDU:2024-00232

BIT-GITLAB-2023-6680

CVE-2023-6680

Affected Products

Gitlab

Gitlab Ce/Ee

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6680.json · Exploit
• https://bdu.fstec.ru/vul/2024-00232 · Security Note
• https://ubuntu.com/security/CVE-2023-6680 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-gitlab-2023-6680 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-6680 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-6680 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-6680 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-6680 · Vendor Advisory
• https://github.com/advisories/GHSA-wpj8-2grx-f965 · Note
• https://habr.com/ru/companies/tomhunter/articles/785210 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6680 · Note
• https://gitlab.com/gitlab-org/gitlab/-/issues/421607 · Note
• https://twitter.com/CVEnew/status/1735696285624160619 · Twitter Post
• https://vuldb.com/?id.248217 · Note
• https://t.me/cvenotify/64254 · Telegram Post