JetBrains TeamCity Authentication Bypass Vulnerability (CVE-2023-42793)
Severity: critical · Patch status: unknown · Since 2023-10-04 · CVE-2023-42793
JetBrains TeamCity contains an authentication bypass vulnerability that allows for remote code execution on TeamCity Server. CISA added CVE-2023-42793 to its Known Exploited Vulnerabilities catalog on Oct 4, 2023, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Oct 25, 2023 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
