Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 6.8%
CVSS Severity
CVSS v3 Score 7.9
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
Products affected by CVE-2023-38994
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cpe:2.3:o:univention:univention_corporate_server:5.0