CVE-2023-38994 json
The 'check_univention_joinstatus' prometheus monitoring script (and other scripts) in UCS 5.0-5 revealed the LDAP plaintext password of the…
published 2023-10-31 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-42751
- cvss
- 7.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
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.
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- drive-byte.de https://www.drive-byte.de/en/blog/simple-yet-effective-the-story-of-some-simple-bugs-that-led-to-the-complete-compromise-of-a-network referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.9 | CVSS:3.1/AC:L/AV:L/A:N/C:H/I:H/PR:H/S:C/UI:N |
| CNA | 3.1 | 7.9 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-668 Exposure of Resource to Wrong Sphere
References
-
drive-byte.de
/en/blog/simple-yet-effective-the-story-of-some-simple-bugs-that-led-to-the-complete-compromise-of-a-network
exploit, technical-description, third-party-advisory
-
forge.univention.org
/bugzilla/show_bug.cgi?id=56324
issue-tracking, vendor-advisory
-
forge.univention.org
/bugzilla/show_bug.cgi?id=56324#c0
issue-tracking, vendor-advisory
- raeph123.github.io /BlogPosts/Univention/Simple_yet_effective_The_story_of_some_simple_bugs_that_led_to_the_complete_compromise_o
Sources
- CVE List CVE-2023-38994
- NVD CVE-2023-38994
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