CVE-2024-27198
JetBrains — JetBrains TeamCity Authentication Bypass Vulnerability
JetBrains · CWE-288 · in CISA KEV since 2024-03-07
EVRS 94 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 49 of 2,960 tracked
Why it scores 94
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and associated with known ransomware campaigns.
- CISA KEVApplied
- RansomwareApplied
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
- www.jetbrains.com/…/teamcity-2023-11-4-release-notes.html
- blog.jetbrains.com/…/additional-critical-security-issues-affecting-teamcity-on-premises-cve-2024-27198-and-cve-2024-27199-update-to-2023-11-4-now
- nvd.nist.gov/…/CVE-2024-27198
Fixed in
teamcity: update to 2023.11.4 or later
Affected versions
- teamcity
< 2023.11.4
Remediation
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.999 (99.97th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Known | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2024-03-28 · KEV since 2024 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | Public module exists | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by JetBrains. | Listed | ENISA EUVD |
Description
NVDIn JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible
What CISA says to do
- www.jetbrains.com/…/teamcity-2023-11-4-release-notes.html
- blog.jetbrains.com/…/additional-critical-security-issues-affecting-teamcity-on-premises-cve-2024-27198-and-cve-2024-27199-update-to-2023-11-4-now
- nvd.nist.gov/…/CVE-2024-27198
Public module
Metasploit lists a public excellent-rank module for this CVE: JetBrains TeamCity Unauthenticated Remote Code Execution (multi/http/jetbrains_teamcity_rce_cve_2024_27198). A module existing is not the same as active exploitation; see metasploit.com.