CVE-2023-3899

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2023-08-23 11:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-11-07 12:17 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.2% in the next 30 days (EPSS).
• Severity: 7.8 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-08-23 11:15 UTC

Last modified

2026-11-07 12:17 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-285

Record status

Modified

Affected

• Redhat subscription-manager < 1.28.39
• Redhat subscription-manager < 1.29.37
• Fedoraproject Fedora 37
• Fedoraproject Fedora 38
• Redhat Enterprise Linux 8.0
• Redhat Enterprise Linux 9.0
• Redhat Enterprise Linux Desktop 7.0
• Redhat Enterprise Linux Eus 8.6

Attack profile CVSS 3.1 · 7.8

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-3899.md and follow it. Check whether this project is affected by CVE-2023-3899. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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