# CVE-2020-24786: Auth bypass in n/a

> Remote attackers can bypass authentication via a Java servlet to modify system properties and compromise the entire ManageEngine suite.

- **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:** 31 Aug 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-7w2m-j6h7-9f2m

## What is CVE-2020-24786?

CVE-2020-24786 is a critical authentication bypass vulnerability in Zohocorp Manageengine Adaudit Plus, published on 31 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in Zoho ManageEngine Exchange Reporter Plus before build number 5510, AD360 before build number 4228, ADSelfService Plus before build number 5817, DataSecurity Plus before build number 6033, RecoverManager Plus before build number 6017, EventLog Analyzer before build number 12136, ADAudit Plus before build number 6052, O365 Manager Plus before build number 4334, Cloud Security Plus before build number 4110, ADManager Plus before build number 7055, and Log360 before build number 5166. The remotely accessible Java servlet com.manageengine.ads.fw.servlet.UpdateProductDetails is prone to an authentication bypass. System integration properties can be modified and lead to full ManageEngine suite compromise.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2020-24786?

It affects 11 products.


Products: Zohocorp Manageengine Ad360, Zohocorp Manageengine Adaudit Plus, Zohocorp Manageengine Admanager Plus, Zohocorp Manageengine Adselfservice Plus, Zohocorp Manageengine Cloud Security Plus, Zohocorp Manageengine Datasecurity Plus, Zohocorp Manageengine Eventlog Analyzer, Zohocorp Manageengine Exchange Reporter Plus, Zohocorp Manageengine Log360, Zohocorp Manageengine O365 Manager Plus, Zohocorp Manageengine Recovermanager Plus.

## How do I fix CVE-2020-24786?

No fix has been published for CVE-2020-24786 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-24786 being exploited?

There is no known exploitation of CVE-2020-24786 in the wild and no public exploit code.

## Other vulnerabilities in Zohocorp Manageengine Adaudit Plus

- [CVE-2023-35785](https://insights.sbomify.com/CVE-2023-35785/): Auth bypass in n/a (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-24786 and fix it if it is affected.

What it is: CVE-2020-24786 is a critical authentication bypass vulnerability in Zohocorp Manageengine Adaudit Plus, published on 31 Aug 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-2020-24786 in the wild and no public exploit code.

Affected product: Zohocorp Manageengine Adaudit 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-2020-24786/ (Markdown: https://insights.sbomify.com/CVE-2020-24786/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-24786
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-24786
- OSV: https://osv.dev/vulnerability/CVE-2020-24786

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-24786/
Summaries are generated and may contain mistakes; the official description above is the record.