# CVE-2024-34198: Memory corruption in n/a

> Attackers can trigger a stack overflow via the wlan_ssid field in the formWlEncrypt CGI handler, enabling arbitrary command execution or denial of service on TOTOLINK AC1200 routers.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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:** 28 Aug 2024
- **Updated:** 29 Aug 2024
- **Also known as:** GHSA-4j37-x4vf-9p6c

## What is CVE-2024-34198?

CVE-2024-34198 is a critical memory corruption vulnerability in n/a, published on 28 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

TOTOLINK AC1200 Wireless Router A3002RU V2.1.1-B20230720.1011 is vulnerable to Buffer Overflow. The formWlEncrypt CGI handler in the boa program fails to limit the length of the wlan_ssid field from user input. This allows attackers to craft malicious HTTP requests by supplying an excessively long value for the wlan_ssid field, leading to a stack overflow. This can be further exploited to execute arbitrary commands or launch denial-of-service attacks.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2024-34198?

It affects 1 product.


Products: Totolink A3002ru Firmware.

## How do I fix CVE-2024-34198?

No fix has been published for CVE-2024-34198 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-34198 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-34198 exists.

## Other vulnerabilities in n/a

- [CVE-2022-35491](https://insights.sbomify.com/CVE-2022-35491/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2019-19825](https://insights.sbomify.com/CVE-2019-19825/): Security feature bypass in n/a (critical 9.8)
- [CVE-2018-13306](https://insights.sbomify.com/CVE-2018-13306/): Command injection in n/a (critical 9.8)
- [CVE-2018-13307](https://insights.sbomify.com/CVE-2018-13307/): Command injection in n/a (critical 9.8)
- [CVE-2018-13314](https://insights.sbomify.com/CVE-2018-13314/): Command injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-34198 and fix it if it is affected.

What it is: CVE-2024-34198 is a critical memory corruption vulnerability in n/a, published on 28 Aug 2024. 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-2024-34198 exists.

Affected product: n/a. 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-2024-34198/ (Markdown: https://insights.sbomify.com/CVE-2024-34198/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-34198
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-34198
- OSV: https://osv.dev/vulnerability/CVE-2024-34198

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-34198/
Summaries are generated and may contain mistakes; the official description above is the record.