# CVE-2023-23431: Security feature bypass in NTH-AN00

> Attackers can bypass signature checks to overwrite system files, potentially leading to privilege escalation or code execution on Honor devices.

- **Severity:** High 7.3 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H`)
- **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:** 29 Dec 2023
- **Updated:** 9 Sep 2024
- **Also known as:** GHSA-jfvx-rjp6-p69p

## What is CVE-2023-23431?

CVE-2023-23431 is a high-severity vulnerability in Honor NTH-AN00, published on 29 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Some Honor products are affected by signature management vulnerability, successful exploitation could cause the forged system file overwrite the correct system file.

Weakness: CWE-347 (Improper Verification of Cryptographic Signature)

## Which versions are affected by CVE-2023-23431?

It affects 1 product.


Products: Hihonor Nth-An00 Firmware.

## How do I fix CVE-2023-23431?

No fix has been published for CVE-2023-23431 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23431 being exploited?

There is no known exploitation of CVE-2023-23431 in the wild and no public exploit code.

## Other vulnerabilities in Honor NTH-AN00

- [CVE-2023-23432](https://insights.sbomify.com/CVE-2023-23432/): Security feature bypass in NTH-AN00 (high 7.3)
- [CVE-2023-23424](https://insights.sbomify.com/CVE-2023-23424/): File upload in NTH-AN00 (medium 6.5)
- [CVE-2023-23433](https://insights.sbomify.com/CVE-2023-23433/): Security feature bypass in NTH-AN00 (medium 4.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23431 and fix it if it is affected.

What it is: CVE-2023-23431 is a high-severity vulnerability in Honor NTH-AN00, published on 29 Dec 2023. 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-2023-23431 in the wild and no public exploit code.

Affected product: Honor NTH-AN00. 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-2023-23431/ (Markdown: https://insights.sbomify.com/CVE-2023-23431/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23431
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23431
- OSV: https://osv.dev/vulnerability/CVE-2023-23431

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23431/
Summaries are generated and may contain mistakes; the official description above is the record.