Detections
Analytics

CVE-2024-27198

critical

Description

In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible

From the Tenable Blog

CVE-2024-27198, CVE-2024-27199: Two Authentication Bypass Vulnerabilities in JetBrains TeamCity
CVE-2024-27198, CVE-2024-27199: Two Authentication Bypass Vulnerabilities in JetBrains TeamCity

Published: 2024-03-06

Two vulnerabilities with publicly available exploit code in JetBrains TeamCity on-premises software could result in attackers bypassing authentication and achieving code execution.

References

https://www.darkreading.com/cyberattacks-data-breaches/jetbrains-teamcity-mass-exploitation-underway-rogue-accounts-thrive

https://www.bleepingcomputer.com/news/security/microsoft-links-medusa-ransomware-affiliate-to-zero-day-attacks/

https://cybelangel.com/blog/qilin-ransomware-tactics-attack/

https://thehackernews.com/2025/05/china-linked-hackers-exploit-sap-and.html

https://www.securityweek.com/chinese-hacking-group-earth-lamia-targets-multiple-industries/

https://www.trendmicro.com/en_us/research/25/e/earth-lamia.html

https://securelist.com/vulnerability-report-q1-2024/112554/

https://thehackernews.com/2024/03/bianlian-threat-actors-exploiting.html

https://www.guidepointsecurity.com/blog/bianlian-gos-for-powershell-after-teamcity-exploitation/

https://www.theregister.com/2024/03/07/teamcity_exploits_lead_to_ransomware/

https://www.bleepingcomputer.com/news/security/teamcity-auth-bypass-bug-exploited-to-mass-generate-admin-accounts/

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

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-27198

Details

Source: Mitre, NVD

Published: 2024-03-04

Updated: 2025-10-24

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.93047

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Interest