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Gentoo Linux Security Advisory                           GLSA 202407-05
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: SSSD: Command Injection
     Date: July 01, 2024
     Bugs: #808911
       ID: 202407-05

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Synopsis
========

A vulnerability has been discovered in SSSD, which can lead to arbitrary
code execution.

Background
==========

SSSD provides a set of daemons to manage access to remote directories
and authentication mechanisms such as LDAP, Kerberos or FreeIPA. It
provides an NSS and PAM interface toward the system and a pluggable
backend system to connect to multiple different account sources.

Affected packages
=================

Package        Vulnerable    Unaffected
-------------  ------------  ------------
sys-auth/sssd  < 2.5.2-r1    >= 2.5.2-r1

Description
===========

A vulnerability has been discovered in SSSD. Please review the CVE
identifier referenced below for details.

Impact
======

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.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SSSD users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-auth/sssd-2.5.2-r1"

References
==========

[ 1 ] CVE-2021-3621
      https://nvd.nist.gov/vuln/detail/CVE-2021-3621

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202407-05

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2024 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5