PT-2024-1046 · Gitlab+2 · Gitlab Ce/Ee+3

Yvvdwfon · Published 2024-01-11 · Updated 2024-05-03 · CVE-2023-5356

Positive Technologies (AI Summary)

CVSS v2.0

8.5

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:N

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 8.13 through 16.5.6 GitLab CE/EE versions 16.6 through 16.6.4 GitLab CE/EE versions 16.7 through 16.7.2

Description The issue is related to incorrect authorization checks in GitLab, allowing a user to abuse Slack/Mattermost integrations to execute slash commands as another user. This can enable a remote attacker to execute arbitrary commands.

Recommendations For GitLab CE/EE versions 8.13 through 16.5.6, update to version 16.5.6 or later. For GitLab CE/EE versions 16.6 through 16.6.4, update to version 16.6.4 or later. For GitLab CE/EE versions 16.7 through 16.7.2, update to version 16.7.2 or later. As a temporary workaround, consider restricting access to Slack/Mattermost integrations until a patch is applied. Monitor logs for signs of compromise.

Exploit

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

BDU:2024-00260

BIT-GITLAB-2023-5356

CVE-2023-5356

Affected Products

Gitlab

Gitlab Ce/Ee

Mattermost

Slack

References · 37

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5356.json · Exploit
• 🔥 https://hackerone.com/reports/2188868 · Exploit
• https://ubuntu.com/security/CVE-2023-5356 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-gitlab-2023-5356 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-5356 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-5356 · Security Note
• https://osv.dev/vulnerability/CVE-2023-5356 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-5356 · Security Note
• https://bdu.fstec.ru/vul/2024-00260 · Security Note
• https://twitter.com/unix_root/status/1745794764119687503 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1745832580782444677 · Twitter Post
• https://twitter.com/jvquantum/status/1745797016213479483 · Twitter Post
• https://gitlab.com/gitlab-org/gitlab/-/issues/427154 · Note
• https://t.me/isacarusec/6714 · Telegram Post
• https://twitter.com/fletch_ai/status/1786637039993299175 · Twitter Post