CVE-2023-38994

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324 Issue Tracking Vendor Advisory
https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0 Issue 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-network Exploit Technical Description Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:o:univention:univention_corporate_server:5.0:*:*:*:*:*:*:*
History

13 Nov 2023, 15:16

Type Values Removed Values Added
References (MISC) https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0 - (MISC) https://forge.univention.org/bugzilla/show_bug.cgi?id=56324#c0 - Issue Tracking, Vendor Advisory
References (MISC) https://forge.univention.org/bugzilla/show_bug.cgi?id=56324 - (MISC) https://forge.univention.org/bugzilla/show_bug.cgi?id=56324 - Issue Tracking, Vendor Advisory
References (MISC) 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 - (MISC) 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 - Exploit, Technical Description, Third Party Advisory
First Time Univention univention Corporate Server
Univention
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CWE CWE-668
CPE cpe:2.3:o:univention:univention_corporate_server:5.0:*:*:*:*:*:*:*

08 Nov 2023, 22:15

Type Values Removed Values Added
Summary 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. 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.

31 Oct 2023, 12:58

Type Values Removed Values Added
New CVE
Information

Published : 2023-10-31 12:15

Updated : 2024-01-31 14:48

NVD link : CVE-2023-38994

Mitre link : CVE-2023-38994

CVE.ORG link : CVE-2023-38994

JSON object : View

Products Affected

univention

  • univention_corporate_server
CWE
CWE-668

Exposure of Resource to Wrong Sphere