# CVE-2020-26183: Missing authorization in NetWorker

> Low-privilege remote users can perform unauthorized nsrmmdbd operations in Dell EMC NetWorker, potentially escalating privileges or modifying data.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 16 Oct 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-gh53-mcrp-wp5m

## What is CVE-2020-26183?

CVE-2020-26183 is a medium-severity missing authorization vulnerability in Dell NetWorker, published on 16 Oct 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Dell EMC NetWorker versions prior to 19.3.0.2 contain an improper authorization vulnerability. Certain remote users with low privileges may exploit this vulnerability to perform 'nsrmmdbd' operations in an unintended manner.

Weakness: CWE-552 (Files or Directories Accessible to External Parties), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2020-26183?

It affects 1 product.


Products: Dell Emc Networker.

## How do I fix CVE-2020-26183?

No fix has been published for CVE-2020-26183 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-26183 being exploited?

There is no known exploitation of CVE-2020-26183 in the wild and no public exploit code.

## Other vulnerabilities in Dell NetWorker

- [CVE-2017-8023](https://insights.sbomify.com/CVE-2017-8023/): EMC Networker Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2018-11050](https://insights.sbomify.com/CVE-2018-11050/): Information disclosure in Networker (high 8.8)
- [CVE-2021-21558](https://insights.sbomify.com/CVE-2021-21558/): Information disclosure in NetWorker (high 8.2)
- [CVE-2021-21546](https://insights.sbomify.com/CVE-2021-21546/): Information disclosure in NetWorker (high 7.8)
- [CVE-2023-24567](https://insights.sbomify.com/CVE-2023-24567/): Information disclosure in Dell NetWorker, NVE (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-26183 and fix it if it is affected.

What it is: CVE-2020-26183 is a medium-severity missing authorization vulnerability in Dell NetWorker, published on 16 Oct 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-26183 in the wild and no public exploit code.

Affected product: Dell NetWorker. 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-2020-26183/ (Markdown: https://insights.sbomify.com/CVE-2020-26183/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-26183
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-26183
- OSV: https://osv.dev/vulnerability/CVE-2020-26183

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-26183/
Summaries are generated and may contain mistakes; the official description above is the record.