# CVE-2020-1817: Privilege escalation in PCManager

> Local attackers can exploit improper file permissions in Huawei PCManager to inject commands and escalate privileges.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-prg8-f8c5-v3hj

## What is CVE-2020-1817?

CVE-2020-1817 is a high-severity vulnerability in PCManager, published on 30 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Huawei PCManager with versions earlier than 10.0.1.36 has a privilege escalation vulnerability. Due to improper permission management of specific files, local attackers with low permissions can inject commands to exploit this vulnerability. Successful exploit may cause privilege escalation.

## Which versions are affected by CVE-2020-1817?

It affects 1 product.


Products: Huawei Pcmanager.

## How do I fix CVE-2020-1817?

No fix has been published for CVE-2020-1817 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-1817 being exploited?

There is no known exploitation of CVE-2020-1817 in the wild and no public exploit code.

## Other vulnerabilities in PCManager

- [CVE-2021-40046](https://insights.sbomify.com/CVE-2021-40046/): Privilege escalation in PCManager (critical 9.8)
- [CVE-2020-1844](https://insights.sbomify.com/CVE-2020-1844/): Privilege escalation in PCManager (high 7.8)
- [CVE-2019-5223](https://insights.sbomify.com/CVE-2019-5223/): Auth bypass in PC Manager (high 7.8)
- [CVE-2019-5241](https://insights.sbomify.com/CVE-2019-5241/): Privilege escalation in PCManager (high 7.8)
- [CVE-2019-5242](https://insights.sbomify.com/CVE-2019-5242/): Code injection in PCManager (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-1817 and fix it if it is affected.

What it is: CVE-2020-1817 is a high-severity vulnerability in PCManager, published on 30 Apr 2020. 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-2020-1817 in the wild and no public exploit code.

Affected product: PCManager. 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-2020-1817/ (Markdown: https://insights.sbomify.com/CVE-2020-1817/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-1817
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-1817
- OSV: https://osv.dev/vulnerability/CVE-2020-1817

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-1817/
Summaries are generated and may contain mistakes; the official description above is the record.