# CVE-2022-35401: Auth bypass in RT-AX82U

> An attacker can bypass authentication to gain full administrative access to Asus RT-AX82U routers via crafted HTTP requests.

- **Severity:** Critical 9.0 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jan 2023
- **Updated:** 5 Mar 2025
- **Also known as:** GHSA-rj78-2fm5-wrfp

## What is CVE-2022-35401?

CVE-2022-35401 is a critical authentication bypass vulnerability in Asus RT-AX82U, published on 10 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An authentication bypass vulnerability exists in the get_IFTTTTtoken.cgi functionality of Asus RT-AX82U 3.0.0.4.386_49674-ge182230. A specially-crafted HTTP request can lead to full administrative access to the device. An attacker would need to send a series of HTTP requests to exploit this vulnerability.

Weakness: CWE-287 (Improper Authentication), CWE-324 (Use of a Key Past its Expiration Date)

## Which versions are affected by CVE-2022-35401?

It affects 1 product.


Products: Asus Rt-Ax82u Firmware.

## How do I fix CVE-2022-35401?

No fix has been published for CVE-2022-35401 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-35401 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-35401 exists.

## Other vulnerabilities in Asus RT-AX82U

- [CVE-2022-38105](https://insights.sbomify.com/CVE-2022-38105/): Information disclosure in RT-AX82U (high 7.5)
- [CVE-2022-38393](https://insights.sbomify.com/CVE-2022-38393/): Denial of service in RT-AX82U (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-35401 and fix it if it is affected.

What it is: CVE-2022-35401 is a critical authentication bypass vulnerability in Asus RT-AX82U, published on 10 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-35401 exists.

Affected product: Asus RT-AX82U. 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-2022-35401/ (Markdown: https://insights.sbomify.com/CVE-2022-35401/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-35401
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-35401
- OSV: https://osv.dev/vulnerability/CVE-2022-35401

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-35401/
Summaries are generated and may contain mistakes; the official description above is the record.