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CISA adds JetBrains TeamCity bug to its Known Exploited Vulnerabilities catalog
March 09, 2024
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a JetBrains TeamCity vulnerability to its Known Exploited Vulnerabilities catalog.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the CVE-2024-27198 (CVSS Score 9.8) JetBrains TeamCity authentication bypass vulnerability to its Known Exploited Vulnerabilities (KEV) catalog.
This week Rapid7 researchers disclosed two new critical security vulnerabilities, tracked as CVE-2024-27198 (CVSS score: 9.8) and CVE-2024-27199 (CVSS score:7.3), in JetBrains TeamCity On-Premises.
An attacker can exploit the vulnerabilities to take control of affected systems.
Below are the descriptions for these vulnerabilities:
- CVE-2024-27198 is an authentication bypass vulnerability in the web component of TeamCity that arises from an alternative path issue (CWE-288) and has a CVSS base score of 9.8 (Critical).
- CVE-2024-27199 is an authentication bypass vulnerability in the web component of TeamCity that arises from a path traversal issue (CWE-22) and has a CVSS base score of 7.3 (High).
“The vulnerabilities may enable an unauthenticated attacker with HTTP(S) access to a TeamCity server to bypass authentication checks and gain administrative control of that TeamCity server.” reads the advisory published by JetBrains.
The flaws impact all TeamCity On-Premises versions through 2023.11.3, it was addressed with the release of version 2023.11.4.
The company also released a security patch plugin for those customers who are unable to patch their systems.
The two flaws were discovered by Stephen Fewer, Principal Security Researcher at Rapid7, were disclosed following Rapid7’s vulnerability disclosure policy.
Rapid7 published a detailed analysis of the two flaws here.
Describing the flaw CVE-2024-27198, the researchers pointed out that an unauthenticated attacker can use a specially crafted URL to bypass all authentication checks. A remote unauthenticated attacker can exploit this flaw to take complete control of a vulnerable TeamCity server.
According to Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities, FCEB agencies have to address the identified vulnerabilities by the due date to protect their networks against attacks exploiting the flaws in the catalog.
Experts recommend also private organizations review the Catalog and address the vulnerabilities in their infrastructure.
CISA orders federal agencies to fix this vulnerability by March 28, 2024.
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(SecurityAffairs – Hacking, Known Exploited Vulnerabilities catalog)
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