# CVE-2020-8607: Privilege escalation in Trend Micro Anti-Threat Toolkit (ATTK)

> An attacker with administrator privileges can exploit a rootkit protection driver to achieve kernel-mode code execution or cause a system crash.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Aug 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-cjwf-2r6c-6h5f

## What is CVE-2020-8607?

CVE-2020-8607 is a medium-severity vulnerability in Trendmicro Apex One, published on 5 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An input validation vulnerability found in multiple Trend Micro products utilizing a particular version of a specific rootkit protection driver could allow an attacker in user-mode with administrator permissions to abuse the driver to modify a kernel address that may cause a system crash or potentially lead to code execution in kernel mode. An attacker must already have obtained administrator access on the target machine (either legitimately or via a separate unrelated attack) to exploit this vulnerability.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2020-8607?

It affects 12 products.


Products: Trendmicro Antivirus Toolkit, Trendmicro Apex One, Trendmicro Deep Security, Trendmicro Officescan, Trendmicro Officescan Business Security, Trendmicro Officescan Business Security Service, Trendmicro Officescan Cloud, Trendmicro Online Scan, Trendmicro Portable Security, Trendmicro Rootkit Buster, Trendmicro Safe Lock, Trendmicro Serverprotect.

## How do I fix CVE-2020-8607?

No fix has been published for CVE-2020-8607 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-8607 being exploited?

There is no known exploitation of CVE-2020-8607 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-8607 and fix it if it is affected.

What it is: CVE-2020-8607 is a medium-severity vulnerability in Trendmicro Apex One, published on 5 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-8607 in the wild and no public exploit code.

Affected product: Trendmicro Apex One. 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-2020-8607/ (Markdown: https://insights.sbomify.com/CVE-2020-8607/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-8607
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-8607
- OSV: https://osv.dev/vulnerability/CVE-2020-8607

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-8607/
Summaries are generated and may contain mistakes; the official description above is the record.