# CVE-2021-21482: Auth bypass in SAP NetWeaver Master Data Management

> An attacker on the subnet can brute-force passwords to gain administrative access and sensitive data if security guidelines are not followed.

- **Severity:** High 8.3 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-5j64-69cc-x8vw

## What is CVE-2021-21482?

CVE-2021-21482 is a high-severity authentication bypass vulnerability in SAP NetWeaver Master Data Management, published on 13 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

SAP NetWeaver Master Data Management, versions - 710, 710.750, allows a malicious unauthorized user with access to the MDM Server subnet to find the password using a brute force method. If successful, the attacker could obtain access to highly sensitive data and MDM administrative privileges leading to information disclosure vulnerability thereby affecting the confidentiality and integrity of the application. This happens when security guidelines and recommendations concerning administrative accounts of an SAP NetWeaver Master Data Management installation have not been thoroughly reviewed.

## Which versions are affected by CVE-2021-21482?

It affects 1 product.


Products: Sap Netweaver Master Data Management.

## How do I fix CVE-2021-21482?

No fix has been published for CVE-2021-21482 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-21482 being exploited?

There is no known exploitation of CVE-2021-21482 in the wild and no public exploit code.

## Other vulnerabilities in SAP NetWeaver Master Data Management

- [CVE-2021-21469](https://insights.sbomify.com/CVE-2021-21469/): Information disclosure in SAP NetWeaver Master Data Management (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-21482 and fix it if it is affected.

What it is: CVE-2021-21482 is a high-severity authentication bypass vulnerability in SAP NetWeaver Master Data Management, published on 13 Apr 2021. 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-2021-21482 in the wild and no public exploit code.

Affected product: SAP NetWeaver Master Data Management. 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-2021-21482/ (Markdown: https://insights.sbomify.com/CVE-2021-21482/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-21482
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-21482
- OSV: https://osv.dev/vulnerability/CVE-2021-21482

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-21482/
Summaries are generated and may contain mistakes; the official description above is the record.