CVE Vulnerabilities

CVE-2020-8283

Improper Privilege Management

Published: Dec 14, 2020 | Modified: Dec 17, 2020
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
9 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

An authorised user on a Windows host running Citrix Universal Print Server can perform arbitrary command execution as SYSTEM in CVAD versions before 2009, 1912 LTSR CU1 hotfixes CTX285870 and CTX286120, 7.15 LTSR CU6 hotfix CTX285344 and 7.6 LTSR CU9.

Weakness

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Affected Software

Name Vendor Start Version End Version
Virtual_apps_and_desktops Citrix * 2006 (including)
Virtual_apps_and_desktops Citrix 1903 (including) 1912 (including)
Xenapp Citrix * 7.6 (excluding)
Xenapp Citrix 7.7 (including) 7.15 (excluding)
Xenapp Citrix 7.6 (including) 7.6 (including)
Xenapp Citrix 7.6-cu8 (including) 7.6-cu8 (including)
Xenapp Citrix 7.15 (including) 7.15 (including)
Xenapp Citrix 7.15-cu6 (including) 7.15-cu6 (including)
Xendesktop Citrix * 7.6 (excluding)
Xendesktop Citrix 7.7 (including) 7.15 (excluding)
Xendesktop Citrix 7.6 (including) 7.6 (including)
Xendesktop Citrix 7.6-cu8 (including) 7.6-cu8 (including)
Xendesktop Citrix 7.15 (including) 7.15 (including)
Xendesktop Citrix 7.15-cu6 (including) 7.15-cu6 (including)

Potential Mitigations

References