CVE-2023-42793

critical

Description

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

References

https://attackerkb.com/topics/1XEEEkGHzt/cve-2023-42793

https://www.helpnetsecurity.com/2025/02/13/sandworm-apts-initial-access-subgroup-hits-organizations-accross-the-globe/

https://hackread.com/microsoft-badpilot-campaign-seashell-blizzard-usa-uk/

https://www.theregister.com/2025/02/12/russias_sandworm_caught_stealing_credentials/

https://www.securityweek.com/russian-seashell-blizzard-hackers-gain-maintain-access-to-high-value-targets-microsoft/

https://www.microsoft.com/en-us/security/blog/2025/02/12/the-badpilot-campaign-seashell-blizzard-subgroup-conducts-multiyear-global-access-operation/

https://www.bleepingcomputer.com/news/security/badpilot-network-hacking-campaign-fuels-russian-sandworm-attacks/

https://therecord.media/sandworm-subgroup-russia-europe

https://thehackernews.com/2025/02/microsoft-uncovers-sandworm-subgroups.html

https://www.securityweek.com/citrix-cisco-fortinet-zero-days-among-2023s-most-exploited-vulnerabilities/

https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-317a

https://securityaffairs.com/169708/apt/apt29-target-zimbra-and-jetbrains-teamcity.html

https://www.theregister.com/2024/10/12/russia_is_targeting_you_for/

https://thehackernews.com/2024/10/cisa-warns-of-threat-actors-exploiting.html

https://www.ic3.gov/Media/News/2024/241010.pdf

https://www.bleepingcomputer.com/news/security/us-uk-warn-of-russian-apt29-hackers-targeting-zimbra-teamcity-servers/

https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-207a

https://www.cert.ssi.gouv.fr/uploads/CERTFR-2024-CTI-006.pdf

https://www.darkreading.com/cyberattacks-data-breaches/asian-threat-actors-use-new-techniques-to-attack-familiar-targets

https://services.google.com/fh/files/misc/m-trends-2024.pdf

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

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

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

https://www.fortinet.com/blog/threat-research/teamcity-intrusion-saga-apt29-suspected-exploiting-cve-2023-42793

https://thehackernews.com/2023/12/russian-svr-linked-apt29-targets.html

https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-347a

https://www.microsoft.com/en-us/security/blog/2023/10/18/multiple-north-korean-threat-actors-exploiting-the-teamcity-cve-2023-42793-vulnerability/

https://www.bleepingcomputer.com/news/security/ransomware-gangs-now-exploiting-critical-teamcity-rce-flaw/

https://www.tenable.com/blog/cve-2024-27198-cve-2024-27199-two-authentication-bypass-vulnerabilities-in-jetbrains-teamcity

https://www.sonarsource.com/blog/teamcity-vulnerability/

https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/

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

https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/

http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.html

Details

Source: Mitre, NVD

Published: 2023-09-19

Updated: 2025-03-10

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.94584

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