# CVE-2023-24018: Memory corruption in UR32L

> An authenticated attacker can trigger a stack-based buffer overflow in the Milesight UR32L router via a crafted HTTP request, potentially leading to code execution.

- **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:** 6 Jul 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-w3gc-whgg-2cmr

## What is CVE-2023-24018?

CVE-2023-24018 is a high-severity memory corruption vulnerability in Milesight Ur32l Firmware, published on 6 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A stack-based buffer overflow vulnerability exists in the libzebra.so.0.0.0 security_decrypt_password functionality of Milesight UR32L v32.3.0.5. A specially crafted HTTP request can lead to a buffer overflow. An authenticated attacker can send an HTTP request to trigger this vulnerability.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2023-24018?

It affects 1 product.


Products: Milesight Ur32l Firmware.

## How do I fix CVE-2023-24018?

No fix has been published for CVE-2023-24018 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-24018 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-24018 exists.

## Other vulnerabilities in Milesight Ur32l Firmware

- [CVE-2023-23902](https://insights.sbomify.com/CVE-2023-23902/): Memory corruption in UR32L (critical 9.8)
- [CVE-2023-47166](https://insights.sbomify.com/CVE-2023-47166/): Missing authorization in UR32L (high 8.8)
- [CVE-2023-22299](https://insights.sbomify.com/CVE-2023-22299/): Command injection in UR32L (high 8.8)
- [CVE-2023-22653](https://insights.sbomify.com/CVE-2023-22653/): Command injection in UR32L (high 8.8)
- [CVE-2023-24519](https://insights.sbomify.com/CVE-2023-24519/): Command injection in UR32L (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-24018 and fix it if it is affected.

What it is: CVE-2023-24018 is a high-severity memory corruption vulnerability in Milesight Ur32l Firmware, published on 6 Jul 2023. 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-2023-24018 exists.

Affected product: Milesight Ur32l Firmware. 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-2023-24018/ (Markdown: https://insights.sbomify.com/CVE-2023-24018/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-24018
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-24018
- OSV: https://osv.dev/vulnerability/CVE-2023-24018

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-24018/
Summaries are generated and may contain mistakes; the official description above is the record.