{"id":85896,"date":"2025-11-26T18:29:19","date_gmt":"2025-11-26T18:29:19","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-54531-path-traversal-vulnerability-in-jetbrains-teamcity","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-54531-path-traversal-vulnerability-in-jetbrains-teamcity\/","title":{"rendered":"CVE-2025-54531: Path Traversal Vulnerability in JetBrains TeamCity<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

This report highlights a critical vulnerability, CVE-2025-54531, identified within JetBrains TeamCity versions prior to 2025.07. This vulnerability, targeting Windows systems, enables an attacker to execute path traversal attacks during plugin unpacking, potentially leading to system compromise or data leakage. Given the high severity of this vulnerability, an urgent response from the affected users is required.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-54531
\nSeverity: High – 7.7 CVSS Score
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

JetBrains TeamCity | Before 2025.07<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of a path traversal flaw in JetBrains TeamCity. When a plugin is being unpacked on a Windows system, it does not properly sanitize file paths. An attacker can craft a malicious plugin that, when unpacked, would allow files to be written outside of the intended directory, potentially overwriting critical system files or accessing sensitive information.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

The following is a
\nconceptual<\/strong>
\n example of how the vulnerability might be exploited. An attacker could send a malicious plugin with a crafted path, like this:<\/p>\n

POST \/plugin\/upload HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/octet-stream\nContent-Disposition: form-data; name=\"file\"; filename=\"..\/..\/..\/..\/Windows\/System32\/malicious.dll\"\n{ \"malicious_payload\": \"...\" }<\/code><\/pre>\n
In this example, the malicious plugin is named ‘malicious.dll’ and is placed in the Windows System32 folder. When the plugin is unpacked, the malicious code is executed, leading to a potential system compromise.<\/p>\n
Mitigation<\/strong><\/p>\n
Users are advised to immediately apply the vendor-provided patch to fix this vulnerability. If the patch cannot be applied immediately, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as temporary mitigation. However, these are not long-term solutions and the patch should be applied as soon as it is feasible.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview This report highlights a critical vulnerability, CVE-2025-54531, identified within JetBrains TeamCity versions prior to 2025.07. This vulnerability, targeting Windows systems, enables an attacker to execute path traversal attacks during plugin unpacking, potentially leading to system compromise or data leakage. Given the high severity of this vulnerability, an urgent response from the affected users is […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-85896","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t