CVE-2024-36364 in TeamCity
Summary
by MITRE • 05/29/2024
In JetBrains TeamCity before 2022.04.6, 2022.10.5, 2023.05.5, 2023.11.5 improper access control in Pull Requests and Commit status publisher build features was possible
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Analysis
by VulDB Data Team • 12/16/2024
The vulnerability identified as CVE-2024-36364 affects JetBrains TeamCity versions prior to specific patch releases, exposing a critical access control flaw within the platform's build features. This issue specifically impacts the Pull Requests and Commit status publisher build features, which are commonly used to integrate continuous integration systems with version control platforms. The improper access control mechanism allows unauthorized users to potentially manipulate or access build results and status information that should be restricted to authorized personnel or specific repository contributors.
This vulnerability stems from inadequate authorization checks within the TeamCity platform's implementation of pull request integration and commit status publishing functionalities. The flaw enables attackers to exploit the system's permission model by leveraging the build feature configurations that manage how commit statuses are published to version control systems. The technical nature of this issue aligns with CWE-285, which describes improper authorization within software systems, and represents a significant weakness in the platform's access control architecture.
The operational impact of this vulnerability extends beyond simple information disclosure, as it potentially allows malicious actors to influence build outcomes, manipulate repository status indicators, or gain unauthorized access to sensitive build information. Attackers could exploit this weakness to alter the status of pull requests, potentially bypassing security checks or approval processes that depend on build success or failure indicators. This capability particularly affects organizations that rely heavily on automated build and deployment pipelines integrated with their version control systems.
Organizations using affected TeamCity versions should immediately implement mitigations including updating to the patched releases mentioned in the advisory, reviewing and tightening access control configurations for build features, and implementing additional monitoring for unauthorized access attempts. The ATT&CK framework categorizes this vulnerability under privilege escalation and defense evasion techniques, as attackers could leverage it to maintain persistent access or manipulate system integrity. Security teams should also consider implementing network segmentation and additional authentication controls around the TeamCity server to limit exposure and reduce the attack surface for such vulnerabilities.