{"id":"CVE-2023-42793","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-42793","generatedAt":"2026-10-31T10:24:10.942Z","title":"JetBrains TeamCity Authentication Bypass Vulnerability","description":"In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible","published":"2023-09-19T17:15:08.000Z","lastModified":"2026-06-17T06:24:31.000Z","status":"Analyzed","sourceIdentifier":"cve@jetbrains.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-288","CWE-306"],"affected":["jetbrains/teamcity"],"epss":{"score":0.99987,"percentile":0.99983,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2023-10-04","dueDate":"2023-10-25","knownRansomwareCampaignUse":"Known","notes":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\nhttps://blog.jetbrains.com/teamcity/2023/09/critical-security-issue-affecting-teamcity-on-premises-update-to-2023-05-4-now/ ;  https://nvd.nist.gov/vuln/detail/CVE-2023-42793"},"exploits":{"count":1,"verified":false,"firstPublished":"2024-03-14","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":51884,"kind":"exploit","title":"JetBrains TeamCity 2023.05.3 - Remote Code Execution (RCE)","url":"https://www.exploit-db.com/exploits/51884","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/java/remote/51884.py","file":"exploits/java/remote/51884.py","published":"2024-03-14","added":"2024-03-14","updated":"2024-03-14","author":"ByteHunter","type":"remote","platform":"java","port":null,"verified":false,"codes":["CVE-2023-42793"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 25 October 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@jetbrains.com"},{"url":"https://attackerkb.com/topics/1XEEEkGHzt/cve-2023-42793","tags":["Third Party Advisory"],"source":"cve@jetbrains.com"},{"url":"https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/","tags":["Vendor Advisory"],"source":"cve@jetbrains.com"},{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/","tags":["Vendor Advisory"],"source":"cve@jetbrains.com"},{"url":"https://www.rapid7.com/blog/post/2023/09/25/etr-cve-2023-42793-critical-authentication-bypass-in-jetbrains-teamcity-ci-cd-servers/","tags":["Broken Link","Third Party Advisory"],"source":"cve@jetbrains.com"},{"url":"https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/","tags":["Press/Media Coverage"],"source":"cve@jetbrains.com"},{"url":"https://www.sonarsource.com/blog/teamcity-vulnerability/","tags":["Exploit","Third Party Advisory"],"source":"cve@jetbrains.com"},{"url":"http://packetstormsecurity.com/files/174860/JetBrains-TeamCity-Unauthenticated-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://attackerkb.com/topics/1XEEEkGHzt/cve-2023-42793","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://blog.jetbrains.com/teamcity/2023/09/cve-2023-42793-vulnerability-post-mortem/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.jetbrains.com/privacy-security/issues-fixed/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.rapid7.com/blog/post/2023/09/25/etr-cve-2023-42793-critical-authentication-bypass-in-jetbrains-teamcity-ci-cd-servers/","tags":["Broken Link","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.securityweek.com/recently-patched-teamcity-vulnerability-exploited-to-hack-servers/","tags":["Press/Media Coverage"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42793","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-42793","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}