# CVE-2020-1812: Auth bypass in HUAWEI P30

> An attacker can bypass authentication on Huawei P30 devices by tricking users into installing a malicious application, allowing unauthorized operations.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Feb 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-vf7f-rm6p-4f56

## What is CVE-2020-1812?

CVE-2020-1812 is a high-severity authentication bypass vulnerability in HUAWEI P30, published on 18 Feb 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

HUAWEI P30 smartphones with versions earlier than 10.0.0.173(C00E73R1P11) have an improper authentication vulnerability. Due to improperly validation of certain application, an attacker should trick the user into installing a malicious application to exploit this vulnerability. Successful exploit could allow the attacker to bypass the authentication to perform unauthorized operations.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2020-1812?

It affects 1 product.


Products: Huawei P30 Firmware.

## How do I fix CVE-2020-1812?

No fix has been published for CVE-2020-1812 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-1812 being exploited?

There is no known exploitation of CVE-2020-1812 in the wild and no public exploit code.

## Other vulnerabilities in HUAWEI P30

- [CVE-2020-1800](https://insights.sbomify.com/CVE-2020-1800/): Missing authorization in HUAWEI P30 (high 7.8)
- [CVE-2019-5287](https://insights.sbomify.com/CVE-2019-5287/): Integer overflow in P30 (high 7.8)
- [CVE-2019-5288](https://insights.sbomify.com/CVE-2019-5288/): Integer overflow in P30 (high 7.8)
- [CVE-2021-22331](https://insights.sbomify.com/CVE-2021-22331/): Cross-site scripting in HUAWEI P30 (high 7.5)
- [CVE-2019-5265](https://insights.sbomify.com/CVE-2019-5265/): Information disclosure in P30 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-1812 and fix it if it is affected.

What it is: CVE-2020-1812 is a high-severity authentication bypass vulnerability in HUAWEI P30, published on 18 Feb 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-1812 in the wild and no public exploit code.

Affected product: HUAWEI P30. 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-2020-1812/ (Markdown: https://insights.sbomify.com/CVE-2020-1812/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-1812
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-1812
- OSV: https://osv.dev/vulnerability/CVE-2020-1812

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-1812/
Summaries are generated and may contain mistakes; the official description above is the record.