# CVE-2023-3899: Missing authorization in Red Hat Enterprise Linux 6

> Local attackers can exploit inadequate D-Bus authorization in subscription-manager to modify configuration and escalate privileges to root.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 23 Aug 2023
- **Updated:** 20 Nov 2025
- **Also known as:** ALSA-2023:4706, ALSA-2023:4708, AZL-28099, AZL-37046, GHSA-wp8h-m67c-cxpw, RHSA-2023:4701, RHSA-2023:4702, RHSA-2023:4703, RHSA-2023:4704, RHSA-2023:4705, RHSA-2023:4706, RHSA-2023:4707, RHSA-2023:4708, RLSA-2023:4706, RLSA-2023:4708

## What is CVE-2023-3899?

CVE-2023-3899 is a high-severity missing authorization vulnerability in Fedoraproject Fedora, published on 23 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official 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.

Weakness: CWE-863 (Incorrect Authorization), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2023-3899?

It affects 20 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `dnf-plugin-subscription-manager` | AlmaLinux:8 | All versions | 1.28.36-3.el8_8.alma.1 |
| `python3-cloud-what` | AlmaLinux:8 | All versions | 1.28.36-3.el8_8.alma.1 |
| `python3-subscription-manager-rhsm` | AlmaLinux:8 | All versions | 1.28.36-3.el8_8.alma.1 |
| `python3-syspurpose` | AlmaLinux:8 | All versions | 1.28.36-3.el8_8.alma.1 |
| `subscription-manager` | AlmaLinux:8 | All versions | 1.28.36-3.el8_8.alma.1 |
| `subscription-manager-migration` | AlmaLinux:8 | All versions | 1.28.36-3.el8_8.alma.1 |
| `subscription-manager-plugin-ostree` | AlmaLinux:8 | All versions | 1.28.36-3.el8_8.alma.1 |
| `subscription-manager-rhsm-certificates` | AlmaLinux:8 | All versions | 1.28.36-3.el8_8.alma.1 |
| `libdnf-plugin-subscription-manager` | AlmaLinux:9 | All versions | 1.29.33.1-2.el9_2.alma.1 |
| `python3-cloud-what` | AlmaLinux:9 | All versions | 1.29.33.1-2.el9_2.alma.1 |
| `python3-subscription-manager-rhsm` | AlmaLinux:9 | All versions | 1.29.33.1-2.el9_2.alma.1 |
| `subscription-manager` | AlmaLinux:9 | All versions | 1.29.33.1-2.el9_2.alma.1 |
| `subscription-manager-plugin-ostree` | AlmaLinux:9 | All versions | 1.29.33.1-2.el9_2.alma.1 |
| `python-syspurpose` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `rhsm-gtk` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-cockpit` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-debuginfo` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-gui` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-initial-setup-addon` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-migration` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-plugin-container` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-plugin-ostree` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-rhsm` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-rhsm-certificates` | Red Hat:enterprise_linux:7::client | All versions | 0:1.24.52-2.el7_9 |
| `rhsm-gtk` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-cockpit` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-debuginfo` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-gui` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-initial-setup-addon` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-plugin-ostree` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.24.52-2.el7_9 |
| `python-syspurpose` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |
| `rhsm-gtk` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-cockpit` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-debuginfo` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-gui` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-initial-setup-addon` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-migration` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |
| `subscription-manager-plugin-container` | Red Hat:enterprise_linux:7::server | All versions | 0:1.24.52-2.el7_9 |

Products: Fedoraproject Fedora, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux for Arm 64, Redhat Enterprise Linux for Arm 64 Eus, Redhat Enterprise Linux for Ibm Z Systems, Redhat Enterprise Linux for Ibm Z Systems Eus, Redhat Enterprise Linux for Power Big Endian, Redhat Enterprise Linux for Power Little Endian, Redhat Enterprise Linux for Power Little Endian Eus, Redhat Enterprise Linux for Scientific Computing, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server for Power Little Endian Update Services for Sap Solutions, Redhat Enterprise Linux Server Tus, Redhat Enterprise Linux Server Update Services for Sap Solutions, Redhat Enterprise Linux Update Services for Sap Solutions, Redhat Enterprise Linux Workstation, Redhat Subscription-Manager.

## How do I fix CVE-2023-3899?

Apply the vendor's patch.

## Is CVE-2023-3899 being exploited?

There is no known exploitation of CVE-2023-3899 in the wild and no public exploit code.

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## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-3899 and fix it if it is affected.

What it is: CVE-2023-3899 is a high-severity missing authorization vulnerability in Fedoraproject Fedora, published on 23 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-3899 in the wild and no public exploit code.

Affected product: Fedoraproject Fedora. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-3899/ (Markdown: https://insights.sbomify.com/CVE-2023-3899/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-3899
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-3899
- OSV: https://osv.dev/vulnerability/CVE-2023-3899

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-3899/
Summaries are generated and may contain mistakes; the official description above is the record.