# CVE-2017-11394: Command injection in Trend Micro OfficeScan

> Remote attackers can execute arbitrary code on Trend Micro OfficeScan installations by exploiting a command injection flaw in the Proxy.php script.

- **Severity:** Critical 9.8 (`CVSS:3.0/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:** 3 Aug 2017
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-2pxr-78xf-pr6j

## What is CVE-2017-11394?

CVE-2017-11394 is a critical command injection vulnerability in Trendmicro Officescan, published on 3 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Proxy command injection vulnerability in Trend Micro OfficeScan 11 and XG (12) allows remote attackers to execute arbitrary code on vulnerable installations. The specific flaw can be exploited by parsing the T parameter within Proxy.php. Formerly ZDI-CAN-4544.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2017-11394?

It affects 1 product.


Products: Trendmicro Officescan.

## How do I fix CVE-2017-11394?

No fix has been published for CVE-2017-11394 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-11394 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-11394 exists.

Public exploit code:

- Trend Micro OfficeScan Remote Code Execution (metasploit)
- Trend Micro OfficeScan 11.0/XG (12.0) - Remote Code Execution (Metasploit) (exploitdb)

## Other vulnerabilities in Trendmicro Officescan

- [CVE-2019-18187](https://insights.sbomify.com/CVE-2019-18187/): Trend Micro OfficeScan Directory Traversal (high 8.8, exploited in the wild)
- [CVE-2017-14089](https://insights.sbomify.com/CVE-2017-14089/): Memory corruption in Trend Micro OfficeScan (critical 9.8)
- [CVE-2017-11393](https://insights.sbomify.com/CVE-2017-11393/): Command injection in Trend Micro OfficeScan (critical 9.8)
- [CVE-2018-10508](https://insights.sbomify.com/CVE-2018-10508/): Privilege escalation in Trend Micro OfficeScan (high 8.8)
- [CVE-2018-10509](https://insights.sbomify.com/CVE-2018-10509/): Cross-site request forgery in Trend Micro OfficeScan (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-11394 and fix it if it is affected.

What it is: CVE-2017-11394 is a critical command injection vulnerability in Trendmicro Officescan, published on 3 Aug 2017. 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-2017-11394 exists.

Affected product: Trendmicro Officescan. 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-2017-11394/ (Markdown: https://insights.sbomify.com/CVE-2017-11394/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-11394
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-11394
- OSV: https://osv.dev/vulnerability/CVE-2017-11394

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-11394/
Summaries are generated and may contain mistakes; the official description above is the record.