# CVE-2024-42640: angular-base64-upload vulnerable to unauthenticated remote code execution

> Unauthenticated attackers can upload arbitrary files to the server via the demo script, leading to remote code execution.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 11 Oct 2024
- **Updated:** 15 Oct 2024
- **Also known as:** GHSA-vgxq-6rcf-qwrw

## What is CVE-2024-42640?

CVE-2024-42640 is a critical vulnerability in n/a, published on 11 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

angular-base64-upload prior to v0.1.21 is vulnerable to unauthenticated remote code execution via demo/server.php. Exploiting this vulnerability allows an attacker to upload arbitrary content to the server, which can subsequently be accessed through demo/uploads. This leads to the execution of previously uploaded content and enables the attacker to achieve code execution on the server. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2024-42640?

2 open source packages ship an affected version, including angular-base64-upload.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `angular-base64-upload` | npm | All versions | 0.1.21 |
| `angular-base64-upload` | npm | All versions | 0.1.21 |

## How do I fix CVE-2024-42640?

Upgrade angular-base64-upload to 0.1.21 or later.

## Is CVE-2024-42640 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42640 exists.

Public exploit code:

- Unauthenticated Remote Code Execution via Angular-Base64-Upload Library  (github_poc): https://github.com/rvzsec/CVE-2024-42640
- Unauthenticated Remote Code Execution via Angular-Base64-Upload Library (npm:bower) (github_poc): https://github.com/KTN1990/CVE-2024-42640
- Angular-Base64-Upload Library 0.1.20 - Remote Code Execution (RCE) (exploitdb)
- Angular-Base64-Upload Library 0.1.21 - Unauthenticated Remote Code Execution (RCE) (exploitdb)
- Angular-Base64-Upload - Remote Code Execution (nuclei): http/cves/2024/CVE-2024-42640.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-42640 and fix it if it is affected.

What it is: CVE-2024-42640 is a critical vulnerability in n/a, published on 11 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42640 exists.

Affected packages and fixed versions:
- angular-base64-upload (npm): affected all versions; fixed in 0.1.21
- angular-base64-upload (npm): affected all versions; fixed in 0.1.21

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-2024-42640/ (Markdown: https://insights.sbomify.com/CVE-2024-42640/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-42640
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-42640
- OSV: https://osv.dev/vulnerability/CVE-2024-42640

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-42640/
Summaries are generated and may contain mistakes; the official description above is the record.