#VU87980 Security features bypass in TeamCity - CVE-2024-31136

Vulnerability identifier: #VU87980

Vulnerability risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-31136

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TeamCity
Web applications / CRM systems

Vendor: JetBrains s.r.o.

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper validation of consistency within input. A remote user can use a special URL parameter and bypass 2FA.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

TeamCity: before 2024.03

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External links
https://www.jetbrains.com/privacy-security/issues-fixed/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.