# CVE-2020-8600: Path traversal in Trend Micro Worry-Free Business Security (WFBS)

> Attackers can exploit a directory traversal flaw to manipulate key files and bypass authentication in Trend Micro Worry-Free Business Security.

- **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:** 18 Mar 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-g6rj-g25f-439p

## What is CVE-2020-8600?

CVE-2020-8600 is a critical path traversal vulnerability in Trendmicro Worry-Free Business Security, published on 18 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Trend Micro Worry-Free Business Security (9.0, 9.5, 10.0) is affected by a directory traversal vulnerability that could allow an attacker to manipulate a key file to bypass authentication.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2020-8600?

It affects 1 product.


Products: Trendmicro Worry-Free Business Security.

## How do I fix CVE-2020-8600?

No fix has been published for CVE-2020-8600 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-8600 being exploited?

There is no known exploitation of CVE-2020-8600 in the wild and no public exploit code.

## Other vulnerabilities in Trendmicro Worry-Free Business Security

- [CVE-2021-44019](https://insights.sbomify.com/CVE-2021-44019/): Privilege escalation in Trend Micro Worry-Free Business Security (high 7.8)
- [CVE-2021-44020](https://insights.sbomify.com/CVE-2021-44020/): Privilege escalation in Trend Micro Worry-Free Business Security (high 7.8)
- [CVE-2021-44021](https://insights.sbomify.com/CVE-2021-44021/): Privilege escalation in Trend Micro Worry-Free Business Security (high 7.8)
- [CVE-2020-28574](https://insights.sbomify.com/CVE-2020-28574/): Path traversal in Trend Micro Worry-Free Business Security (high 7.5)
- [CVE-2022-23805](https://insights.sbomify.com/CVE-2022-23805/): Information disclosure in Trend Micro Worry-Free Business Security (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-8600 and fix it if it is affected.

What it is: CVE-2020-8600 is a critical path traversal vulnerability in Trendmicro Worry-Free Business Security, published on 18 Mar 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-2020-8600 in the wild and no public exploit code.

Affected product: Trendmicro Worry-Free Business Security. 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-2020-8600/ (Markdown: https://insights.sbomify.com/CVE-2020-8600/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-8600
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-8600
- OSV: https://osv.dev/vulnerability/CVE-2020-8600

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-8600/
Summaries are generated and may contain mistakes; the official description above is the record.