{"id":"CVE-2023-38994","aliases":["EUVD-2023-42751","GHSA-79jx-q243-6wc7"],"status":"published","title":"An issue in Univention UCS v.5.0 allows a local attacker to execute arbitrary code and gain...","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.","severity":{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AC:L/AV:L/A:N/C:H/I:H/PR:H/S:C/UI:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00303,"percentile":0.23289,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-668"],"published":"2023-10-31T00:00:00Z","modified":"2026-06-17T06:11:26Z","products":[{"vendor":"univention","product":"univention_corporate_server"}],"references":[{"url":"https://forge.univention.org/bugzilla/show_bug.cgi?id=56324","tags":["x_transferred","Issue Tracking","Vendor Advisory"]},{"url":"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","tags":["x_transferred","Exploit","Technical Description","Third Party Advisory"]},{"url":"https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0","tags":["x_transferred","Issue Tracking","Vendor Advisory"]},{"url":"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"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-38994"},{"url":"https://github.com/advisories/GHSA-79jx-q243-6wc7"}],"sources":{"cve":[{"id":"CVE-2023-38994","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.","status":"published","published":"2023-10-31T00:00:00Z","modified":"2025-04-15T22:09:15.651Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AC:L/AV:L/A:N/C:H/I:H/PR:H/S:C/UI:N","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:30.116696Z"}],"euvd":[{"id":"EUVD-2023-42751","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.","status":"published","published":"2023-10-31T00:00:00Z","modified":"2025-04-15T22:09:15Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AC:L/AV:L/A:N/C:H/I:H/PR:H/S:C/UI:N","level":"high"}],"updated_at":"2026-11-02T20:52:25.86191Z"}],"ghsa":[{"id":"GHSA-79jx-q243-6wc7","title":"An issue in Univention UCS v.5.0 allows a local attacker to execute arbitrary code and gain...","description":"An issue in Univention UCS v.5.0 allows a local attacker to execute arbitrary code and gain privileges via the check_univention_joinstatus function.","status":"published","published":"2023-10-31T12:30:24Z","modified":"2025-04-16T00:31:30Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T15:01:33.833824Z"}],"nvd":[{"id":"CVE-2023-38994","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.","status":"published","published":"2023-10-31T12:15:08.683Z","modified":"2026-06-17T06:11:26.77Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:08:41.047232Z"}]}}