CVE-2023-42793
CRITICAL severity · CVSS 9.8 · CWE-288 · actively exploited (CISA KEV)
9.8CVSS CRITICAL exploited ransomware
Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Known use in ransomware campaigns. Added to KEV 2023-10-04. US federal agencies must patch by 2023-10-25.
Summary
In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)100%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/Advisory
- https://www.jetbrains.com/privacy-security/issues-fixed/Advisory
- https://attackerkb.com/topics/1XEEEkGHzt/cve-2023-42793Advisory
- https://www.rapid7.com/blog/post/2023/09/25/etr-cve-2023-42793-critical-authentication-bypass-in-jetbrains-teamcity-ci-cd-servers/Advisory
- https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/
- http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.htmlAdvisory
- https://www.sonarsource.com/blog/teamcity-vulnerability/Advisory