CVE-2023-38994

EUVD-2023-42751
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.9 HIGH
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
mitreCNA
7.9 HIGH
LOCAL
LOW
HIGH
CVSS:3.1/AC:L/AV:L/A:N/C:H/I:H/PR:H/S:C/UI:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 9%
Affected Products (NVD)
VendorProductVersion
univentionunivention_corporate_server
5.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0
https://raeph123.github.io/BlogPosts/Univention/Simple_yet_effective_The_story_of_some_simple_bugs_that_led_to_the_complete_compromise_of_a_network_en.html
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
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0
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