# CVE-2018-3609: Information disclosure in Trend Micro InterScan Messaging Security Virtual Appliance

> Unauthenticated attackers can access sensitive log data to bypass authentication on Trend Micro InterScan Messaging Security appliances.

- **Severity:** High 8.1 (`CVSS:3.0/AV:N/AC:H/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:** 16 Feb 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-999p-3hf6-2qgp

## What is CVE-2018-3609?

CVE-2018-3609 is a high-severity vulnerability in Trend Micro InterScan Messaging Security Virtual Appliance, published on 16 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the Trend Micro InterScan Messaging Security Virtual Appliance 9.0 and 9.1 management portal could allow an unauthenticated user to access sensitive information in a particular log file that could be used to bypass authentication on vulnerable installations.

Weakness: CWE-532 (Insertion of Sensitive Information into Log File), CWE-522 (Insufficiently Protected Credentials)

## Which versions are affected by CVE-2018-3609?

It affects 1 product.


Products: Trendmicro Interscan Messaging Security Virtual Appliance.

## How do I fix CVE-2018-3609?

No fix has been published for CVE-2018-3609 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-3609 being exploited?

There is no known exploitation of CVE-2018-3609 in the wild and no public exploit code.

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

- [CVE-2020-27016](https://insights.sbomify.com/CVE-2020-27016/): Cross-site request forgery in Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) (high 8.8)
- [CVE-2020-27694](https://insights.sbomify.com/CVE-2020-27694/): Other in Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) (high 8.8)
- [CVE-2017-11391](https://insights.sbomify.com/CVE-2017-11391/): Command injection in Trend Micro InterScan Messaging Security Virtual Appliance (high 8.8)
- [CVE-2017-11392](https://insights.sbomify.com/CVE-2017-11392/): Command injection in Trend Micro InterScan Messaging Security Virtual Appliance (high 8.8)
- [CVE-2017-6398](https://insights.sbomify.com/CVE-2017-6398/): Command injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-3609 and fix it if it is affected.

What it is: CVE-2018-3609 is a high-severity vulnerability in Trend Micro InterScan Messaging Security Virtual Appliance, published on 16 Feb 2018. 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-2018-3609 in the wild and no public exploit code.

Affected product: Trend Micro InterScan Messaging 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-2018-3609/ (Markdown: https://insights.sbomify.com/CVE-2018-3609/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-3609
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-3609
- OSV: https://osv.dev/vulnerability/CVE-2018-3609

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-3609/
Summaries are generated and may contain mistakes; the official description above is the record.