CVE-2020-12456 Explained : Impact and Mitigation

Mitel MiVoice Connect Client before 214.100.1223.0 is affected by a remote code execution vulnerability that could allow an attacker to execute arbitrary code in the chat notification window.

Understanding CVE-2020-12456

This CVE involves a critical security issue in Mitel MiVoice Connect Client that could lead to remote code execution.

What is CVE-2020-12456?

The vulnerability in Mitel MiVoice Connect Client allows attackers to execute arbitrary code in the chat notification window due to improper rendering of chat messages. Successful exploitation could result in various malicious activities.

The Impact of CVE-2020-12456

Exploiting this vulnerability could enable attackers to steal session cookies, perform directory traversal, and execute arbitrary scripts within the Connect client's context.

Technical Details of CVE-2020-12456

Mitel MiVoice Connect Client before 214.100.1223.0 is susceptible to remote code execution.

Vulnerability Description

The vulnerability arises from the improper rendering of chat messages, allowing attackers to execute arbitrary code in the chat notification window.

Affected Systems and Versions

Affected Product: Mitel MiVoice Connect Client
Vulnerable Version: before 214.100.1223.0

Exploitation Mechanism

Attackers can exploit this vulnerability to execute arbitrary code in the chat notification window.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2020-12456.

Immediate Steps to Take

Update Mitel MiVoice Connect Client to version 214.100.1223.0 or newer.
Monitor for any unusual activities or unauthorized access.

Long-Term Security Practices

Regularly update software and security patches.
Conduct security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Mitel has released patches to address this vulnerability. Ensure timely installation of these patches to secure the system.