Is there a public exploit for CVE-2023-3899?

No public exploit for CVE-2023-3899 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2023-3899?

CVE-2023-3899 scores CVSS 7.8 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.24%.

What does CVE-2023-3899 affect?

CVE-2023-3899 affects Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.0 Extended Update Support, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support.

7.8 High

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

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.

Assessment

CVSS: 7.8 (v3.1)
Severity: High
EPSS: 0.24% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 23 August 2023
Last updated: 7 November 2026
Affected: Red Hat · Red Hat Enterprise Linux 7 · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions · Red Hat Enterprise Linux 8.2 Advanced Update Support
Assigner: redhat

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

At the source

EUVD (ENISA)

References

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