Vulnerability in Univention Corporate Server
CVE-2023-38994
The 'check_univention_joinstatus' prometheus monitoring script (and other scripts) in UCS 5.0-5 revealed the LDAP plaintext password of the machine account in the process list allowing attackers with local ssh access to gain higher privileges and perform followup attacks. By default, the configuration of UCS does not allow local ssh access for regular users.
EPSS: 0.003 (27.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.9 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Univention Univention_corporate_server — versions 5.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Issue Tracking, Vendor Advisory)
- cve@mitre.org (Technical Description, Exploit, Third Party Advisory)
- cve@mitre.org (Issue Tracking, Vendor Advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2023-38994?
- CVE-2023-38994 is a high-severity vulnerability in Univention Corporate Server, classified under Exposure of Resource to Wrong Sphere. CVSS score: 7.9/10. Published 2023-10-31.
- How severe is CVE-2023-38994?
- High severity. CVSS v3 base score is 7.9 out of 10.
- Is CVE-2023-38994 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.