The 'check_univention_joinstatus' prometheus monitoring script (and other scripts) in UCS…
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:univention:univention_corporate_server:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Univention |
- cpe:2.3:o:univention:univention_corporate_server:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Univention
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-38994
- 2026-10-03 Alias added: GHSA-79jx-q243-6wc7
References
Advisory 2
More Univention Corporate Server vulnerabilities
- TI-2019-16054 Information disclosure in univention-directory-notifier CVSS 3.1HIGH 7.5
Sources
- CVE-2023-38994 · CVE Program
- CVE-2023-38994 · NVD
- FIRST EPSS
- GHSA-79jx-q243-6wc7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences