# CVE-2019-9491: Path traversal in Trend Micro Anti-Threat Toolkit (ATTK)

> Attackers can place malicious files in the application directory to achieve arbitrary remote code execution when the toolkit is run.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Oct 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6ph9-24mm-7chj

## What is CVE-2019-9491?

CVE-2019-9491 is a high-severity path traversal vulnerability in Trend Micro Anti-Threat Toolkit (ATTK), published on 21 Oct 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Trend Micro Anti-Threat Toolkit (ATTK) versions 1.62.0.1218 and below have a vulnerability that may allow an attacker to place malicious files in the same directory, potentially leading to arbitrary remote code execution (RCE) when executed.

Weakness: CWE-427 (Uncontrolled Search Path Element)

## Which versions are affected by CVE-2019-9491?

It affects 1 product.


Products: Trendmicro Anti-Threat Toolkit.

## How do I fix CVE-2019-9491?

No fix has been published for CVE-2019-9491 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-9491 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-9491 exists.

Public exploit code:

- Trend Micro Anti-Threat Toolkit 1.62.0.1218 - Remote Code Execution (exploitdb)

## Other vulnerabilities in Trend Micro Anti-Threat Toolkit (ATTK)

- [CVE-2019-20358](https://insights.sbomify.com/CVE-2019-20358/): Path traversal in Trend Micro Anti-Threat Toolkit (ATTK) (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-9491 and fix it if it is affected.

What it is: CVE-2019-9491 is a high-severity path traversal vulnerability in Trend Micro Anti-Threat Toolkit (ATTK), published on 21 Oct 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-9491 exists.

Affected product: Trend Micro Anti-Threat Toolkit (ATTK). 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-2019-9491/ (Markdown: https://insights.sbomify.com/CVE-2019-9491/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-9491
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-9491
- OSV: https://osv.dev/vulnerability/CVE-2019-9491

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-9491/
Summaries are generated and may contain mistakes; the official description above is the record.