CVE-2021-3621

A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

• CWE-77
• CWE-78

• https://bugzilla.redhat.com/show_bug.cgi?id=1975142Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/05/msg00028.htmlThird Party Advisory
• https://sssd.io/release-notes/sssd-2.6.0.htmlRelease Notes, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1975142Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/05/msg00028.htmlThird Party Advisory
• https://lists.debian.org/debian-lts-announce/2025/02/msg00008.html
• https://sssd.io/release-notes/sssd-2.6.0.htmlRelease Notes, Third Party Advisory

Published

Dec 23, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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