# CVE-2021-34870: Missing authorization in XR1000

> Network-adjacent attackers can access privileged SOAP requests without authentication to disclose stored credentials on NETGEAR XR1000 routers.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 25 Jan 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-h6cj-7c5m-52v5

## What is CVE-2021-34870?

CVE-2021-34870 is a medium-severity missing authorization vulnerability in NETGEAR XR1000, published on 25 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR XR1000 1.0.0.52_1.0.38 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of SOAP messages. The issue results from a lack of authentication required for a privileged request. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-13325.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2021-34870?

It affects 1 product.


Products: Netgear Xr1000.

## How do I fix CVE-2021-34870?

No fix has been published for CVE-2021-34870 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34870 being exploited?

There is no known exploitation of CVE-2021-34870 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34870 and fix it if it is affected.

What it is: CVE-2021-34870 is a medium-severity missing authorization vulnerability in NETGEAR XR1000, published on 25 Jan 2022. 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-2021-34870 in the wild and no public exploit code.

Affected product: NETGEAR XR1000. 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-2021-34870/ (Markdown: https://insights.sbomify.com/CVE-2021-34870/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34870
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34870
- OSV: https://osv.dev/vulnerability/CVE-2021-34870

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34870/
Summaries are generated and may contain mistakes; the official description above is the record.