CVE-2019-11401 Explained : Impact and Mitigation

A vulnerability in SiteServer CMS 6.9.0 allows remote attackers to execute unauthorized code by manipulating file extensions.

Understanding CVE-2019-11401

This CVE involves a security issue in SiteServer CMS 6.9.0 that permits attackers to execute arbitrary code remotely.

What is CVE-2019-11401?

This vulnerability arises from the CMS allowing administrators to add a specific file extension that can be exploited by attackers to execute unauthorized code.

The Impact of CVE-2019-11401

The vulnerability enables remote attackers to perform unauthorized code execution, posing a significant security risk to affected systems.

Technical Details of CVE-2019-11401

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The issue in SiteServer CMS 6.9.0 allows remote attackers to execute arbitrary code by manipulating file extensions.

Affected Systems and Versions

Product: SiteServer CMS 6.9.0
Vendor: SiteServer
Versions: All versions are affected

Exploitation Mechanism

Attackers can exploit the vulnerability by adding a specific file extension that gets converted to a different extension, enabling the execution of unauthorized code.

Mitigation and Prevention

Protecting systems from CVE-2019-11401 requires immediate actions and long-term security measures.

Immediate Steps to Take

Disable the ability for administrators to add potentially harmful file extensions.
Implement strict file upload validation to prevent unauthorized file execution.

Long-Term Security Practices

Regularly update the CMS to patch known vulnerabilities.
Conduct security audits to identify and address any potential security loopholes.

Patching and Updates

Apply patches and updates provided by SiteServer to fix the vulnerability and enhance system security.