CVE-2023-42793 JetBrains TeamCity Authentication Bypass
Attackers can bypass authentication to execute arbitrary code on the TeamCity server, requiring immediate upgrade.
- Exploited in the wild
- Since 4 Oct 2023
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-42793?
CVE-2023-42793 is a critical authentication bypass vulnerability in Jetbrains Teamcity, published on 19 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible
Which versions are affected by CVE-2023-42793?
It affects 1 product.
Products include Jetbrains Teamcity.
How do I fix CVE-2023-42793?
No fix has been published for CVE-2023-42793 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 25 Oct 2023.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-42793 being exploited?
Yes. Attackers have exploited CVE-2023-42793 in the wild since at least 4 Oct 2023, including in ransomware campaigns.
Public exploit code: 1 Metasploit module, 1 Exploit-DB entry, 1 Nuclei template and 17 proofs of concept on GitHub.
Other vulnerabilities in Jetbrains Teamcity
Sources
Also known as GHSA-w796-2gq9-7jm8.