# CVE-2024-0573: Totolink LR1200GB cstecgi.cgi setDiagnosisCfg stack-based overflow

> Remote attackers can trigger a stack-based buffer overflow in the diagnosis configuration handler, potentially executing arbitrary code on the router.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Jan 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-v393-vf8w-rvv7

## What is CVE-2024-0573?

CVE-2024-0573 is a high-severity memory corruption vulnerability in Totolink LR1200GB, published on 16 Jan 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been found in Totolink LR1200GB 9.1.0u.6619_B20230130 and classified as critical. Affected by this vulnerability is the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ip leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-250789 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2024-0573?

It affects 1 product.


Products: Totolink Lr1200gb Firmware.

## How do I fix CVE-2024-0573?

No fix has been published for CVE-2024-0573 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-0573 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-0573 exists.

## Other vulnerabilities in Totolink LR1200GB

- [CVE-2024-1783](https://insights.sbomify.com/CVE-2024-1783/): Totolink LR1200GB Web Interface cstecgi.cgi loginAuth stack-based overflow (critical 9.8)
- [CVE-2023-46977](https://insights.sbomify.com/CVE-2023-46977/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-0571](https://insights.sbomify.com/CVE-2024-0571/): Totolink LR1200GB cstecgi.cgi setSmsCfg stack-based overflow (high 8.8)
- [CVE-2024-0572](https://insights.sbomify.com/CVE-2024-0572/): Totolink LR1200GB cstecgi.cgi setOpModeCfg stack-based overflow (high 8.8)
- [CVE-2024-0574](https://insights.sbomify.com/CVE-2024-0574/): Totolink LR1200GB cstecgi.cgi setParentalRules stack-based overflow (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-0573 and fix it if it is affected.

What it is: CVE-2024-0573 is a high-severity memory corruption vulnerability in Totolink LR1200GB, published on 16 Jan 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-0573 exists.

Affected product: Totolink LR1200GB. 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-2024-0573/ (Markdown: https://insights.sbomify.com/CVE-2024-0573/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-0573
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-0573
- OSV: https://osv.dev/vulnerability/CVE-2024-0573

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-0573/
Summaries are generated and may contain mistakes; the official description above is the record.