CVE-2021-39363 : Security Advisory and Response

Honeywell HDZP252DI 1.00.HW02.4 and HBW2PER1 1.000.HW01.3 devices are affected by a video replay attack vulnerability after achieving ARP cache poisoning.

Understanding CVE-2021-39363

This CVE involves security issues in specific Honeywell devices that could lead to a video replay attack.

What is CVE-2021-39363?

The vulnerability allows attackers to perform a video replay attack post ARP cache poisoning on Honeywell HDZP252DI 1.00.HW02.4 and HBW2PER1 1.000.HW01.3 devices.

The Impact of CVE-2021-39363

The exploitation of this vulnerability could result in unauthorized access to video feeds and compromised security systems.

Technical Details of CVE-2021-39363

This section delves into the technical specifics of the CVE.

Vulnerability Description

The vulnerability permits a video replay attack on the impacted Honeywell devices after successful ARP cache poisoning.

Affected Systems and Versions

Product: Honeywell HDZP252DI, HBW2PER1
Versions: HDZP252DI 1.00.HW02.4, HBW2PER1 1.000.HW01.3
Status: Affected

Exploitation Mechanism

Attackers can exploit the vulnerability by conducting ARP cache poisoning to initiate a video replay attack.

Mitigation and Prevention

Protecting systems from the CVE is crucial to maintain security.

Immediate Steps to Take

Apply patches from Honeywell promptly.
Monitor network traffic for unusual activities.
Implement ARP Spoofing detection mechanisms.

Long-Term Security Practices

Regularly update firmware and security patches.
Conduct security training for personnel to prevent social engineering attacks.

Patching and Updates

Honeywell may release patches and updates for the affected devices to mitigate the vulnerability effectively.