Subscription-manager: inadequate authorization of com.redhat.rhsm1 d-bus interface allows local users to modify configuration
Vulnerability Description
A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a low-privileged local user could tamper with the state of the registration, by unregistering the system or by changing the current entitlements. This flaw allows an attacker to set arbitrary configuration directives for /etc/rhsm/rhsm.conf, which can be abused to cause a local privilege escalation to an unconfined root.
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:
- This issue was discovered by Thibault Guittet (Senior Product Security Engineer, Red Hat).
References
- https://access.redhat.com/errata/RHSA-2023:4701
- https://access.redhat.com/errata/RHSA-2023:4702
- https://access.redhat.com/errata/RHSA-2023:4703
- https://access.redhat.com/errata/RHSA-2023:4704
- https://access.redhat.com/errata/RHSA-2023:4705
- https://access.redhat.com/errata/RHSA-2023:4706
- https://access.redhat.com/errata/RHSA-2023:4707
- https://access.redhat.com/errata/RHSA-2023:4708
- https://access.redhat.com/security/cve/CVE-2023-3899
- https://bugzilla.redhat.com/show_bug.cgi?id=2225407
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