CVE-2017-11391 Explained : Impact and Mitigation

A vulnerability related to proxy command injection has been identified in versions 9.0 and 9.1 of Trend Micro InterScan Messaging Virtual Appliance. This vulnerability enables attackers to remotely execute arbitrary code on installations that are vulnerable. The issue lies in the way the "t" parameter is processed within modTMCSS Proxy. This vulnerability was previously reported as ZDI-CAN-4744.

Understanding CVE-2017-11391

This CVE involves a proxy command injection vulnerability in Trend Micro InterScan Messaging Virtual Appliance versions 9.0 and 9.1.

What is CVE-2017-11391?

CVE-2017-11391 is a security vulnerability in Trend Micro InterScan Messaging Virtual Appliance versions 9.0 and 9.1 that allows remote attackers to execute arbitrary code by manipulating the "t" parameter within modTMCSS Proxy.

The Impact of CVE-2017-11391

Attackers can exploit this vulnerability to remotely execute arbitrary code on vulnerable systems.

Technical Details of CVE-2017-11391

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability in Trend Micro InterScan Messaging Virtual Appliance versions 9.0 and 9.1 allows for proxy command injection, enabling remote code execution.

Affected Systems and Versions

Product: Trend Micro InterScan Messaging Security Virtual Appliance
Vendor: Trend Micro
Versions Affected: 9.0, 9.1

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the "t" parameter within modTMCSS Proxy.

Mitigation and Prevention

Protecting systems from CVE-2017-11391 is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by Trend Micro promptly.
Monitor for any unusual network activity that may indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update and patch all software and systems to prevent known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Trend Micro may release patches or updates to address CVE-2017-11391. Stay informed about security advisories and apply patches as soon as they are available.