# CVE-2023-31210: Privilege escalation in agent via LD_LIBRARY_PATH

> A malicious site user can escalate privileges and execute code by injecting malicious libraries via the LD_LIBRARY_PATH environment variable in the Checkmk agent.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Dec 2023
- **Updated:** 2 Dec 2024
- **Also known as:** GHSA-45w9-c3q7-mccg, UBUNTU-CVE-2023-31210

## What is CVE-2023-31210?

CVE-2023-31210 is a high-severity vulnerability in Checkmk Checkmk, published on 13 Dec 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Usage of user controlled LD_LIBRARY_PATH in agent in Checkmk 2.2.0p10 up to 2.2.0p16 allows malicious Checkmk site user to escalate rights via injection of malicious libraries

Weakness: CWE-427 (Uncontrolled Search Path Element)

## Which versions are affected by CVE-2023-31210?

It affects 1 product.


Products: Checkmk Checkmk.

## How do I fix CVE-2023-31210?

No fix has been published for CVE-2023-31210 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-31210 being exploited?

There is no known exploitation of CVE-2023-31210 in the wild and no public exploit code.

## Other vulnerabilities in Checkmk Checkmk

- [CVE-2025-39666](https://insights.sbomify.com/CVE-2025-39666/): omd: Local privilege escalation when executing omd commands as root (critical 9.3)
- [CVE-2024-8606](https://insights.sbomify.com/CVE-2024-8606/): Fix 2FA bypass via RestAPI (critical 9.2)
- [CVE-2022-46836](https://insights.sbomify.com/CVE-2022-46836/): PHP code injection in watolib (critical 9.1)
- [CVE-2025-32919](https://insights.sbomify.com/CVE-2025-32919/): Privilege Escalation in Windows License plugin for Checkmk Windows Agent (high 8.8)
- [CVE-2024-28827](https://insights.sbomify.com/CVE-2024-28827/): Privilege escalation in Windows agent (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-31210 and fix it if it is affected.

What it is: CVE-2023-31210 is a high-severity vulnerability in Checkmk Checkmk, published on 13 Dec 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-31210 in the wild and no public exploit code.

Affected product: Checkmk Checkmk. 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-2023-31210/ (Markdown: https://insights.sbomify.com/CVE-2023-31210/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-31210
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-31210
- OSV: https://osv.dev/vulnerability/CVE-2023-31210

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-31210/
Summaries are generated and may contain mistakes; the official description above is the record.