#VU56000 Command Injection in System Security Services Daemon (SSSD) - CVE-2021-3621

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Main Vulnerability Database Vulnerabilities #VU56000

#VU56000 Command Injection in System Security Services Daemon (SSSD) - CVE-2021-3621

Published: August 20, 2021 / Updated: October 19, 2021


Vulnerability identifier: #VU56000
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3621
CWE-ID: CWE-77
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
System Security Services Daemon (SSSD)
Software vendor:
SSSD

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper input validation in the sssctl command within the logs-fetch and cache-expire subcommands. An attacker can trick the root user into running a specially crafted sssctl command, such as via sudo, and execute arbitrary code with root privileges.


Remediation

Install update from vendor's website.

External links