# CVE-2022-23031: On BIG-IP FPS, ASM, and Advanced WAF versions 16.1.x before 16.1.1, 15.1.x before 15.1.4, and 14.1.x before 14.1.4.4, an XML External Entity


- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 25 Jan 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-6j94-pvhj-7f99

## What is CVE-2022-23031?

CVE-2022-23031 is a medium-severity vulnerability in F5 Big-Ip Advanced Web Application Firewall, published on 25 Jan 2022. 

### Official description

On BIG-IP FPS, ASM, and Advanced WAF versions 16.1.x before 16.1.1, 15.1.x before 15.1.4, and 14.1.x before 14.1.4.4, an XML External Entity (XXE) vulnerability exists in an undisclosed page of the F5 Advanced Web Application Firewall (Advanced WAF) and BIG-IP ASM Traffic Management User Interface (TMUI), also referred to as the Configuration utility, that allows an authenticated high-privileged attacker to read local files and force BIG-IP to send HTTP requests. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2022-23031?

It affects 3 products.


Products: F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager, F5 Big-Ip Fraud Protection Service.

## How do I fix CVE-2022-23031?

No fix has been published for CVE-2022-23031 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-23031 being exploited?

There is no known exploitation of CVE-2022-23031 in the wild and no public exploit code.

## Other vulnerabilities in F5 Big-Ip Advanced Web Application Firewall

- [CVE-2021-23031](https://insights.sbomify.com/CVE-2021-23031/): Privilege escalation in BIG-IP Advanced WAF and BIG-IP ASM (critical 9.9)
- [CVE-2021-23029](https://insights.sbomify.com/CVE-2021-23029/): Server-side request forgery in BIG-IP Advanced WAF and BIG-IP ASM (high 8.8)
- [CVE-2021-23014](https://insights.sbomify.com/CVE-2021-23014/): Missing authorization in BIG-IP ASM/Advanced WAF (high 8.8)
- [CVE-2021-22993](https://insights.sbomify.com/CVE-2021-22993/): Cross-site scripting in BIG-IP Advanced WAF and BIG-IP ASM (high 8.8)
- [CVE-2026-40060](https://insights.sbomify.com/CVE-2026-40060/): BIG-IP Advanced WAF and ASM vulnerability (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-23031 and fix it if it is affected.

What it is: CVE-2022-23031 is a medium-severity vulnerability in F5 Big-Ip Advanced Web Application Firewall, published on 25 Jan 2022. 
Exploitation: There is no known exploitation of CVE-2022-23031 in the wild and no public exploit code.

Affected product: F5 Big-Ip Advanced Web Application Firewall. 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-2022-23031/ (Markdown: https://insights.sbomify.com/CVE-2022-23031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-23031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-23031
- OSV: https://osv.dev/vulnerability/CVE-2022-23031

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-23031/
Summaries are generated and may contain mistakes; the official description above is the record.