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Vulnerability record · CVE-2023-3899 · published 23 August 2023

CVE-2023-3899: Redhat subscription-manager improper authorization vulnerability

Redhat · Subscription Manager

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.

7.8 CVSS 3.1 High EPSS 0.25% · top 85.5% CWE-285 · Improper authorizationCWE-863 · Incorrect authorization
7.8CVSS 3.1 base score
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
20Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

20 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2023:4701 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4702 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4703 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4704 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4705 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4706 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4707 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4708 Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-3899 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2225407 Issue TrackingVendor Advisory
https://access.redhat.com/errata/RHSA-2023:4701 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4702 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4703 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4704 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4705 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4706 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4707 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:4708 Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-3899 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2225407 Issue TrackingVendor Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/FJHKSBBZRDFOBNDU35FUKMYQI
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZDIHGNLS3TZVX7X2F735OKI4K

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Source: NIST National Vulnerability Database (record CVE-2023-3899), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.