# CVE-2020-5764: Path traversal in MX Player Android App

> Attackers can exploit directory traversal in MX Player's transfer feature to write files outside intended directories, potentially achieving remote code execution.

- **Severity:** High 8.8 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 8 Jul 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-c55f-px99-57c7

## What is CVE-2020-5764?

CVE-2020-5764 is a high-severity path traversal vulnerability in MX Player Android App, published on 8 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

MX Player Android App versions prior to v1.24.5, are vulnerable to a directory traversal vulnerability when user is using the MX Transfer feature in "Receive" mode. An attacker can exploit this by connecting to the MX Transfer session as a "sender" and sending a MessageType of "FILE_LIST" with a "name" field containing directory traversal characters (../). This will result in the file being transferred to the victim's phone, but being saved outside of the intended "/sdcard/MXshare" directory. In some instances, an attacker can achieve remote code execution by writing ".odex" and ".vdex" files in the "oat" directory of the MX Player application.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2020-5764?

It affects 1 product.


Products: Mxplayer Mx Player.

## How do I fix CVE-2020-5764?

No fix has been published for CVE-2020-5764 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-5764 being exploited?

There is no known exploitation of CVE-2020-5764 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-5764 and fix it if it is affected.

What it is: CVE-2020-5764 is a high-severity path traversal vulnerability in MX Player Android App, published on 8 Jul 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-2020-5764 in the wild and no public exploit code.

Affected product: MX Player Android App. 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-2020-5764/ (Markdown: https://insights.sbomify.com/CVE-2020-5764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-5764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-5764
- OSV: https://osv.dev/vulnerability/CVE-2020-5764

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-5764/
Summaries are generated and may contain mistakes; the official description above is the record.