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.
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
| Link | Tags |
|---|---|
| https://forge.univention.org/bugzilla/show_bug.cgi?id=56324 | vendor advisory issue tracking |
| 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 | third party advisory exploit technical description |
| https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0 | vendor advisory issue tracking |
| 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 |