# CVE-2023-42793

In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible

- Page: https://www.vulneraibility.com/cve/CVE-2023-42793
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2023-10-04; CISA due date 2023-10-25; known ransomware use
- EPSS: 99.99% (percentile 100.0)
- Public exploit code: 1 on Exploit-DB · 1 Metasploit module · 17 GitHub proofs of concept · 1 Nuclei template (first 2023-09-29)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2023-12-13)
- Weakness: CWE-288
- Published: 2023-09-19

## Affected versions

- JetBrains TeamCity: affected < 2023.05.4

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://www.jetbrains.com/privacy-security/issues-fixed/
- [other] https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/
- [other] http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.html
- [other] https://attackerkb.com/topics/1XEEEkGHzt/cve-2023-42793
- [other] https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/
- [other] https://www.rapid7.com/blog/post/2023/09/25/etr-cve-2023-42793-critical-authentication-bypass-in-jetbrains-teamcity-ci-cd-servers/
- [other] https://www.sonarsource.com/blog/teamcity-vulnerability/
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42793

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.