{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2024-27199/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.3,"id":"CVE-2024-27199"}],"_cs_exploited":true,"_cs_products":["TeamCity"],"_cs_severities":["critical"],"_cs_tags":["cve-2024-27199","path-traversal","ransomware","jetbrains"],"_cs_type":"threat","_cs_vendors":["JetBrains"],"content_html":"\u003cp\u003eCVE-2024-27199 is a relative path traversal vulnerability affecting JetBrains TeamCity, a continuous integration and deployment server. This vulnerability allows attackers to perform limited administrative actions by manipulating file paths. JetBrains released a patch for this vulnerability in version 2023.11.4. CISA has added CVE-2024-27199 to its Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild, including its use in ransomware attacks. The vulnerability poses a significant risk to organizations using TeamCity, potentially leading to unauthorized access, data breaches, and system compromise.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable TeamCity server exposed to the internet.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP request containing a relative path traversal sequence (e.g., \u003ccode\u003e../../\u003c/code\u003e) within a URL parameter related to administrative functions.\u003c/li\u003e\n\u003cli\u003eThe TeamCity server processes the crafted request without proper sanitization of the file path.\u003c/li\u003e\n\u003cli\u003eThe relative path traversal allows the attacker to access or modify restricted files or directories outside the intended scope.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the ability to perform limited admin actions, potentially modifying user permissions or injecting malicious code.\u003c/li\u003e\n\u003cli\u003eThe attacker escalates privileges, gaining full control over the TeamCity server.\u003c/li\u003e\n\u003cli\u003eThe attacker deploys ransomware to connected systems, encrypting data and demanding a ransom for its release.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2024-27199 can lead to complete compromise of the TeamCity server and connected build agents. Due to TeamCity\u0026rsquo;s central role in software development and deployment pipelines, this can lead to significant disruption, data loss, and potential supply chain attacks. The vulnerability has been linked to ransomware attacks, causing financial losses, reputational damage, and operational downtime for affected organizations.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the vendor-supplied patch by upgrading to TeamCity version 2023.11.4 or later to remediate CVE-2024-27199 (\u003ca href=\"https://www.jetbrains.com/privacy-security/issues-fixed/\"\u003ehttps://www.jetbrains.com/privacy-security/issues-fixed/\u003c/a\u003e).\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules provided in this brief to detect exploitation attempts against TeamCity servers.\u003c/li\u003e\n\u003cli\u003eFollow CISA\u0026rsquo;s BOD 22-01 guidance for cloud services to ensure proper security configurations and monitoring are in place.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-04-29T12:00:00Z","date_published":"2024-04-29T12:00:00Z","id":"/briefs/2024-04-teamcity-path-traversal/","summary":"A relative path traversal vulnerability in JetBrains TeamCity (CVE-2024-27199) could allow limited administrative actions and has been linked to ransomware attacks.","title":"JetBrains TeamCity Relative Path Traversal Vulnerability (CVE-2024-27199)","url":"https://feed.craftedsignal.io/briefs/2024-04-teamcity-path-traversal/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2024-27199","version":"https://jsonfeed.org/version/1.1"}