# CVE-2021-38164: Missing authorization in SAP ERP Financial Accounting (RFOPENPOSTING FR)

> A registered attacker can invoke restricted functions to view and modify financial accounting data in SAP ERP.

- **Severity:** Medium 5.4 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N`)
- **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:** 14 Sep 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-hfg4-62f6-fjff

## What is CVE-2021-38164?

CVE-2021-38164 is a medium-severity missing authorization vulnerability in SAP ERP Financial Accounting (RFOPENPOSTING_FR), published on 14 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

SAP ERP Financial Accounting (RFOPENPOSTING_FR) versions - SAP_APPL - 600, 602, 603, 604, 605, 606, 616, SAP_FIN - 617, 618, 700, 720, 730, SAPSCORE - 125, S4CORE, 100, 101, 102, 103, 104, 105, allows a registered attacker to invoke certain functions that would otherwise be restricted to specific users. These functions are normally exposed over the network and once exploited the attacker may be able to view and modify financial accounting data that only a specific user should have access to.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2021-38164?

It affects 1 product.


Products: Sap Erp Financial Accounting.

## How do I fix CVE-2021-38164?

No fix has been published for CVE-2021-38164 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-38164 being exploited?

There is no known exploitation of CVE-2021-38164 in the wild and no public exploit code.

## Other vulnerabilities in SAP ERP Financial Accounting (RFOPENPOSTING_FR)

- [CVE-2022-31589](https://insights.sbomify.com/CVE-2022-31589/): Missing authorization in SAP ERP, localization for CEE countries. (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-38164 and fix it if it is affected.

What it is: CVE-2021-38164 is a medium-severity missing authorization vulnerability in SAP ERP Financial Accounting (RFOPENPOSTING_FR), published on 14 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-38164 in the wild and no public exploit code.

Affected product: SAP ERP Financial Accounting (RFOPENPOSTING_FR). 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-2021-38164/ (Markdown: https://insights.sbomify.com/CVE-2021-38164/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-38164
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-38164
- OSV: https://osv.dev/vulnerability/CVE-2021-38164

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-38164/
Summaries are generated and may contain mistakes; the official description above is the record.