# CVE-2020-6109: Path traversal in Zoom

> An attacker can achieve arbitrary code execution by sending a specially crafted chat message with an animated GIF to a Zoom user.

- **Severity:** High 8.5 (`CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/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:** 8 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-j63p-5452-5xv5

## What is CVE-2020-6109?

CVE-2020-6109 is a high-severity path traversal vulnerability in Zoom Zoom, published on 8 Jun 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An exploitable path traversal vulnerability exists in the Zoom client, version 4.6.10 processes messages including animated GIFs. A specially crafted chat message can cause an arbitrary file write, which could potentially be abused to achieve arbitrary code execution. An attacker needs to send a specially crafted message to a target user or a group to exploit this vulnerability.

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

## Which versions are affected by CVE-2020-6109?

It affects 1 product.


Products: Zoom Zoom.

## How do I fix CVE-2020-6109?

No fix has been published for CVE-2020-6109 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6109 being exploited?

There is no known exploitation of CVE-2020-6109 in the wild and no public exploit code.

## Other vulnerabilities in Zoom Zoom

- [CVE-2018-15715](https://insights.sbomify.com/CVE-2018-15715/): Missing authorization in Zoom (critical 9.8)
- [CVE-2023-39216](https://insights.sbomify.com/CVE-2023-39216/): Cross-site scripting in Zoom Desktop Client for Windows (critical 9.6)
- [CVE-2023-36534](https://insights.sbomify.com/CVE-2023-36534/): Path traversal in Zoom Desktop Client for Windows (critical 9.3)
- [CVE-2019-13567](https://insights.sbomify.com/CVE-2019-13567/): Command injection in n/a (high 8.8)
- [CVE-2017-15048](https://insights.sbomify.com/CVE-2017-15048/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6109 and fix it if it is affected.

What it is: CVE-2020-6109 is a high-severity path traversal vulnerability in Zoom Zoom, published on 8 Jun 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-6109 in the wild and no public exploit code.

Affected product: Zoom Zoom. 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-2020-6109/ (Markdown: https://insights.sbomify.com/CVE-2020-6109/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6109
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6109
- OSV: https://osv.dev/vulnerability/CVE-2020-6109

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-6109/
Summaries are generated and may contain mistakes; the official description above is the record.