CVE-2017-16778 : Security Advisory and Response

The Fermax Outdoor Panel has a vulnerability in its DTMF tone receiver, allowing physical attackers to inject tones for unauthorized access.

Understanding CVE-2017-16778

This CVE identifies a security weakness in the Fermax Outdoor Panel's DTMF tone receiver, enabling attackers to exploit the system for unauthorized access.

What is CVE-2017-16778?

The vulnerability in the DTMF tone receiver of the Fermax Outdoor Panel permits attackers to inject specific tones, granting unauthorized access to restricted areas.

The Impact of CVE-2017-16778

The vulnerability allows attackers to bypass access controls and gain unauthorized entry to restricted floors or levels by injecting DTMF tones through the speaker unit.

Technical Details of CVE-2017-16778

The technical aspects of the vulnerability in the Fermax Outdoor Panel.

Vulnerability Description

Attackers can inject DTMF tones to simulate access grants, bypassing security measures.

Affected Systems and Versions

Product: Fermax Outdoor Panel
Vendor: Fermax
Versions: All versions are affected.

Exploitation Mechanism

Attackers exploit the DTMF tone receiver by producing specific tones to mimic authorized access grants.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2017-16778.

Immediate Steps to Take

Disable DTMF tone reception on the Fermax Outdoor Panel if not essential.
Implement additional authentication measures to prevent unauthorized access.

Long-Term Security Practices

Regularly update and patch the Fermax Outdoor Panel to address security vulnerabilities.
Conduct security audits and assessments to identify and remediate potential weaknesses.

Patching and Updates

Stay informed about security updates and patches released by Fermax to address the vulnerability.