Overview
This report discusses the cybersecurity vulnerability identified as CVE-2025-57732, a privilege escalation flaw found in JetBrains TeamCity. This vulnerability can potentially lead to a system compromise or data leakage, making it a significant threat to companies that use JetBrains TeamCity. It matters because an attacker can leverage it to gain unauthorized access, potentially leading to the compromise of sensitive data and system resources.
Vulnerability Summary
CVE ID: CVE-2025-57732
Severity: High (7.5 CVSS Score)
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Impact: The successful exploitation of this vulnerability can lead to unauthorized access, system compromise, and potential data leakage.
Affected Products
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Product | Affected Versions
JetBrains TeamCity | Before 2025.07.1
How the Exploit Works
The CVE-2025-57732 exploit operates through incorrect directory ownership in JetBrains TeamCity. By exploiting this vulnerability, an attacker can escalate their privilege level within the system. Once the privilege level is escalated, the attacker can alter system configurations or access sensitive data, leading to a potential system compromise or data leakage.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. Please note that this is hypothetical and should not be tried on live systems:
# Assume low privilege user
$ whoami
low_priv_user
# Navigate to the misconfigured directory
$ cd /path/to/vulnerable/directory
# Execute a command as a higher privilege user
$ sudo -u high_priv_user /some/commandThis example assumes that the vulnerable directory allows the low-privileged user to execute commands as a high-privileged user due to incorrect directory ownership.
Mitigation
Users are advised to apply the vendor-supplied patch to eliminate this vulnerability. If patching is not immediately possible, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. Regular audits of system and directory ownership and permissions can also help prevent such vulnerabilities.
