# CVE-2020-10816: Auth bypass in n/a

> Remote unauthenticated attackers can register managed servers, potentially leading to unauthorized access and control within Zoho ManageEngine Applications Manager.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Oct 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-jwv5-hj8w-4fc9

## What is CVE-2020-10816?

CVE-2020-10816 is a high-severity authentication bypass vulnerability in Zohocorp Manageengine Applications Manager, published on 8 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Zoho ManageEngine Applications Manager 14780 and before allows a remote unauthenticated attacker to register managed servers via AAMRequestProcessor servlet.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2020-10816?

It affects 1 product.


Products: Zohocorp Manageengine Applications Manager.

## How do I fix CVE-2020-10816?

No fix has been published for CVE-2020-10816 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-10816 being exploited?

There is no known exploitation of CVE-2020-10816 in the wild and no public exploit code.

## Other vulnerabilities in Zohocorp Manageengine Applications Manager

- [CVE-2020-24743](https://insights.sbomify.com/CVE-2020-24743/): Privilege escalation in n/a (critical 9.8)
- [CVE-2020-27995](https://insights.sbomify.com/CVE-2020-27995/): SQL injection in n/a (critical 9.8)
- [CVE-2020-15533](https://insights.sbomify.com/CVE-2020-15533/): SQL injection in n/a (critical 9.8)
- [CVE-2020-15394](https://insights.sbomify.com/CVE-2020-15394/): SQL injection in n/a (critical 9.8)
- [CVE-2019-19649](https://insights.sbomify.com/CVE-2019-19649/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-10816 and fix it if it is affected.

What it is: CVE-2020-10816 is a high-severity authentication bypass vulnerability in Zohocorp Manageengine Applications Manager, published on 8 Oct 2020. 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-2020-10816 in the wild and no public exploit code.

Affected product: Zohocorp Manageengine Applications Manager. 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-2020-10816/ (Markdown: https://insights.sbomify.com/CVE-2020-10816/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-10816
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-10816
- OSV: https://osv.dev/vulnerability/CVE-2020-10816

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-10816/
Summaries are generated and may contain mistakes; the official description above is the record.