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Vulnerability DatabaseCVE-2023-3443

CVE-2023-3443: 
GitLab vulnerability analysis and mitigation

Overview

An issue was discovered in GitLab affecting all versions starting from 12.1 before 16.4.3, all versions starting from 16.5 before 16.5.3, and all versions starting from 16.6 before 16.6.1. The vulnerability allowed Guest users to add emoji reactions to confidential work items that they should not have access to (GitLab Advisory, NVD).

Technical details

The vulnerability has been assigned CVE-2023-3443 and received a CVSS v3.1 Base Score of 4.3 MEDIUM (NIST) and 3.1 LOW (GitLab Inc.) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N. The issue is classified as CWE-863 (Incorrect Authorization) and affects both Community and Enterprise editions of GitLab (NVD).

Impact

The vulnerability allows Guest users to interact with confidential work items by adding emoji reactions, despite not having the proper authorization to view these items. This represents a breach of access control mechanisms, though the impact is limited to emoji reactions only (GitLab Advisory).

Mitigation and workarounds

The vulnerability has been fixed in GitLab versions 16.4.3, 16.5.3, and 16.6.1. Users are strongly recommended to upgrade to one of these patched versions immediately. GitLab.com has already been updated with the security fix (GitLab Advisory).

Additional resources

Source: This report was generated using AI

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