CVE-2021-3621

Name	CVE-2021-3621
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2758-1
Debian Bugs	992710

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
sssd (PTS)	buster	1.16.3-3.2	vulnerable
	bullseye	2.4.1-2	vulnerable
	bookworm, sid	2.8.2-3	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
sssd	source	stretch	1.15.0-3+deb9u2		DLA-2758-1
sssd	source	(unstable)	2.5.2-1			992710

Notes

[bullseye] - sssd <no-dsa> (Minor issue)
[buster] - sssd <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=1975142
https://github.com/SSSD/sssd/commit/7ab83f97e1cbefb78ece17232185bdd2985f0bbe
Introduced by https://github.com/SSSD/sssd/commit/e157b9f6cb370e1b94bcac2044d26ad66d640fba (v1.13.91)