# CVE-2020-8604: Path traversal in Trend Micro InterScan Web Security Virtual Appliance

> Remote attackers can disclose sensitive information from Trend Micro InterScan Web Security Virtual Appliance installations via path traversal.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 27 May 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-22w7-7694-298f

## What is CVE-2020-8604?

CVE-2020-8604 is a high-severity path traversal vulnerability in Trend Micro InterScan Web Security Virtual Appliance, published on 27 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 may allow remote attackers to disclose sensitive informatoin on affected installations.

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

## Which versions are affected by CVE-2020-8604?

It affects 1 product.


Products: Trendmicro Interscan Web Security Virtual Appliance.

## How do I fix CVE-2020-8604?

No fix has been published for CVE-2020-8604 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-8604 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-8604 exists.

Public exploit code:

- Trend Micro Web Security (Virtual Appliance) Remote Code Execution (metasploit)

## Other vulnerabilities in Trend Micro InterScan Web Security Virtual Appliance

- [CVE-2016-9269](https://insights.sbomify.com/CVE-2016-9269/): Command injection in n/a (critical 9.9)
- [CVE-2020-8465](https://insights.sbomify.com/CVE-2020-8465/): Auth bypass in Trend Micro InterScan Web Security Virtual Appliance (critical 9.8)
- [CVE-2020-8466](https://insights.sbomify.com/CVE-2020-8466/): Command injection in Trend Micro InterScan Web Security Virtual Appliance (critical 9.8)
- [CVE-2020-28578](https://insights.sbomify.com/CVE-2020-28578/): Memory corruption in Trend Micro InterScan Web Security Virtual Appliance (critical 9.8)
- [CVE-2020-8606](https://insights.sbomify.com/CVE-2020-8606/): Auth bypass in Trend Micro InterScan Web Security Virtual Appliance (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-8604 and fix it if it is affected.

What it is: CVE-2020-8604 is a high-severity path traversal vulnerability in Trend Micro InterScan Web Security Virtual Appliance, published on 27 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-8604 exists.

Affected product: Trend Micro InterScan Web Security Virtual Appliance. 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-2020-8604/ (Markdown: https://insights.sbomify.com/CVE-2020-8604/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-8604
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-8604
- OSV: https://osv.dev/vulnerability/CVE-2020-8604

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-8604/
Summaries are generated and may contain mistakes; the official description above is the record.