VulnerabilityModified

CVE-2023-38994

HIGH 7.8EPSS 0.35%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.35% probability · 28th percentile
CISA KEV: Not listed
Weakness: CWE-668
Affected: univention/univention corporate server
Source: cve@mitre.org

References

https://forge.univention.org/bugzilla/show_bug.cgi?id=56324Issue Tracking, Vendor Advisory
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0Issue Tracking, Vendor Advisory
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-networkExploit, Technical Description, Third Party Advisory
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324Issue Tracking, Vendor Advisory
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0Issue Tracking, Vendor Advisory
https://www.drive-byte.de/en/blog/simple-yet-effective-the-story-of-some-simple-bugs-that-led-to-the-complete-compromise-of-a-networkExploit, Technical Description, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.