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CVE-2023-3899

7.8 · HIGH

A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization.

Published Aug 23, 2023CWE-285EPSS 0.24%

Overview

CVE-2023-3899 is a high-severity vulnerability. It was published on August 23, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/errata/RHSA-2023:4701Refaccess.redhat.com/errata/RHSA-2023:4702Refaccess.redhat.com/errata/RHSA-2023:4703Refaccess.redhat.com/errata/RHSA-2023:4704Refaccess.redhat.com/errata/RHSA-2023:4705Refaccess.redhat.com/errata/RHSA-2023:4706Refaccess.redhat.com/errata/RHSA-2023:4707Refaccess.redhat.com/errata/RHSA-2023:4708Refaccess.redhat.com/security/cve/CVE-2023-3899Refbugzilla.redhat.com/show_bug.cgi?id=2225407

How CyberStrike helps

Frequently asked questions

What is CVE-2023-3899?

CVE-2023-3899 is a high-severity vulnerability. It was published on August 23, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-3899?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-3899?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-3899?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-3899 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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