Tuned: `script_pre` and `script_post` options allow to pass arbitrary scripts executed by root
Vulnerability Description
A script injection vulnerability was identified in the Tuned package. The `instance_create()` D-Bus function can be called by locally logged-in users without authentication. This flaw allows a local non-privileged user to execute a D-Bus call with `script_pre` or `script_post` options that permit arbitrary scripts with their absolute paths to be passed. These user or attacker-controlled executable scripts or programs could then be executed by Tuned with root privileges that could allow attackers to local privilege escalation.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Red Hat would like to thank Matthias Gerstner (SUSE Security Team) for reporting this issue.
References
- https://access.redhat.com/errata/RHSA-2024:10384
- https://access.redhat.com/errata/RHSA-2025:0879
- https://access.redhat.com/errata/RHSA-2025:0880
- https://access.redhat.com/security/cve/CVE-2024-52336
- https://bugzilla.redhat.com/show_bug.cgi?id=2324540
- https://github.com/redhat-performance/tuned/releases/tag/v2.24.1
- https://security.opensuse.org/2024/11/26/tuned-instance-create.html
- https://www.openwall.com/lists/oss-security/2024/11/28/1
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