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Vulnerability record/PUBLISHED/Published Aug 23, 2023 10:49:11 UTC

CVE-2023-3899

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.

Base score7.8/ 10
SeverityHighCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityHigh
Attack vectorLocalAV
Attack complexityLowAC
Privileges requiredLowPR
User interactionNoneUI
ScopeUnchangedS
Confidentiality impactHighC
Integrity impactHighI
Availability impactHighA
CVSS vector stringCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityredhat
Last updatedNov 7, 2026 11:32:43 UTC
PublishedAug 23, 2023 10:49:11 UTC
ReservedJul 25, 2023 10:15:36 UTC

Credits

  • This issue was discovered by Thibault Guittet (Senior Product Security Engineer, Red Hat).