# CVE-2020-11024: Man-in-the-middle attack in Moonlight iOS/tvOS

> Attackers can intercept Moonlight iOS/tvOS pairing via man-in-the-middle, bypassing security and potentially reading data.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-g298-gp8q-h6j3

## What is CVE-2020-11024?

CVE-2020-11024 is a medium-severity vulnerability in moonlight-stream Moonlight, published on 29 Apr 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

In Moonlight iOS/tvOS before 4.0.1, the pairing process is vulnerable to a man-in-the-middle attack. The bug has been fixed in Moonlight v4.0.1 for iOS and tvOS.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor), CWE-300 (Channel Accessible by Non-Endpoint)

## Which versions are affected by CVE-2020-11024?

It affects 1 product.


Products: Moonlight-Stream Moonlight.

## How do I fix CVE-2020-11024?

No fix has been published for CVE-2020-11024 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-11024 being exploited?

There is no known exploitation of CVE-2020-11024 in the wild and no public exploit code.

## Other vulnerabilities in moonlight-stream Moonlight

- [CVE-2023-42799](https://insights.sbomify.com/CVE-2023-42799/): Buffer overflow due to use of `strcpy` in `parseUrlAddrFromRtspUrlString` (high 8.8)
- [CVE-2023-42800](https://insights.sbomify.com/CVE-2023-42800/): Buffer overflow due to use of `strcpy` in `performRtspHandshake` (high 8.8)
- [CVE-2023-42801](https://insights.sbomify.com/CVE-2023-42801/): Stack buffer overflow due to `strcpy` into fixed size buffer in `extractVersionQuadFromString` (high 7.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11024 and fix it if it is affected.

What it is: CVE-2020-11024 is a medium-severity vulnerability in moonlight-stream Moonlight, published on 29 Apr 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-2020-11024 in the wild and no public exploit code.

Affected product: moonlight-stream Moonlight. 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-2020-11024/ (Markdown: https://insights.sbomify.com/CVE-2020-11024/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11024
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11024
- OSV: https://osv.dev/vulnerability/CVE-2020-11024

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-11024/
Summaries are generated and may contain mistakes; the official description above is the record.