# CVE-2021-42002: File upload in n/a

> Attackers can bypass filters to upload malicious files, leading to remote code execution in Zoho ManageEngine ADManager Plus.

- **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:** No
- **Published:** 11 Nov 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-wxvp-5pm4-8849

## What is CVE-2021-42002?

CVE-2021-42002 is a critical vulnerability in Zohocorp Manageengine Admanager Plus, published on 11 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Zoho ManageEngine ADManager Plus before 7115 is vulnerable to a filter bypass that leads to file-upload remote code execution.

## Which versions are affected by CVE-2021-42002?

It affects 1 product.


Products: Zohocorp Manageengine Admanager Plus.

## How do I fix CVE-2021-42002?

No fix has been published for CVE-2021-42002 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-42002 being exploited?

There is no known exploitation of CVE-2021-42002 in the wild and no public exploit code.

## Other vulnerabilities in Zohocorp Manageengine Admanager Plus

- [CVE-2021-37762](https://insights.sbomify.com/CVE-2021-37762/): File upload in n/a (critical 9.8)
- [CVE-2021-37918](https://insights.sbomify.com/CVE-2021-37918/): File upload in n/a (critical 9.8)
- [CVE-2021-37919](https://insights.sbomify.com/CVE-2021-37919/): File upload in n/a (critical 9.8)
- [CVE-2021-37920](https://insights.sbomify.com/CVE-2021-37920/): File upload in n/a (critical 9.8)
- [CVE-2021-37921](https://insights.sbomify.com/CVE-2021-37921/): File upload in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-42002 and fix it if it is affected.

What it is: CVE-2021-42002 is a critical vulnerability in Zohocorp Manageengine Admanager Plus, published on 11 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-42002 in the wild and no public exploit code.

Affected product: Zohocorp Manageengine Admanager Plus. 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-2021-42002/ (Markdown: https://insights.sbomify.com/CVE-2021-42002/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-42002
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-42002
- OSV: https://osv.dev/vulnerability/CVE-2021-42002

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-42002/
Summaries are generated and may contain mistakes; the official description above is the record.