CVE-2020-11766 Explained : Impact and Mitigation

This CVE-2020-11766 article provides insights into a Command Injection vulnerability in iFAX AvantFAX and HylaFAX Enterprise Web Interface.

Understanding CVE-2020-11766

What is CVE-2020-11766?

sendfax.php in iFAX AvantFAX before 3.3.6 and HylaFAX Enterprise Web Interface before 0.2.5 allows authenticated Command Injection.

The Impact of CVE-2020-11766

The vulnerability could be exploited by authenticated users to execute arbitrary commands on the affected system, potentially leading to unauthorized actions.

Technical Details of CVE-2020-11766

Vulnerability Description

The issue lies in the handling of user input in sendfax.php, enabling attackers to inject and execute commands.

Affected Systems and Versions

iFAX AvantFAX versions before 3.3.6
HylaFAX Enterprise Web Interface versions before 0.2.5

Exploitation Mechanism

Attackers with authenticated access can manipulate input parameters to execute malicious commands on the target system.

Mitigation and Prevention

Immediate Steps to Take

Update iFAX AvantFAX and HylaFAX Enterprise Web Interface to the latest patched versions.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Implement least privilege access controls to limit user capabilities.
Conduct regular security audits and code reviews to identify and address vulnerabilities.

Patching and Updates

Apply security patches provided by the software vendors to address the Command Injection vulnerability.