#VU66471 Improper Privilege Management in TrouSerS - CVE-2020-24330
Published: August 13, 2022
Vulnerability identifier: #VU66471
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-24330
CWE-ID: CWE-269
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
TrouSerS
TrouSerS
Software vendor:
TrouSerS
TrouSerS
Description
The vulnerability allows a local user to escalate privileges.
The vulnerability exists due to the tcsd daemon is started with root privileges instead of tss user and fails to drop them after successful start. A local user can abuse such behavior and escalate privileges on the system.
Remediation
Install updates from vendor's website.
External links
- https://bugzilla.suse.com/show_bug.cgi?id=1164472
- https://sourceforge.net/p/trousers/mailman/message/37015817/
- https://seclists.org/oss-sec/2020/q2/att-135/tcsd_fixes.patch
- http://www.openwall.com/lists/oss-security/2020/08/14/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SSDL7COIFCZQMUBNAASNMKMX7W5JUHRD/