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CVE-2020-6959 : Exploit Details and Defense Strategies

Learn about CVE-2020-6959 affecting Honeywell Maxpro VMS & NVR versions prior to VMS560 Build 595 T2-Patch. Discover the impact, affected systems, exploitation risks, and mitigation steps.

Honeywell Maxpro VMS & NVR versions prior to VMS560 Build 595 T2-Patch are vulnerable to remote code execution due to unsafe deserialization of untrusted data.

Understanding CVE-2020-6959

What is CVE-2020-6959?

The vulnerability in Honeywell Maxpro VMS & NVR allows attackers to remotely modify deserialized data without authentication, potentially leading to remote code execution.

The Impact of CVE-2020-6959

Exploitation of this vulnerability could result in unauthorized remote code execution, posing a significant security risk to affected systems.

Technical Details of CVE-2020-6959

Vulnerability Description

The flaw lies in the unsafe deserialization of untrusted data in Honeywell Maxpro VMS & NVR versions, enabling attackers to manipulate data via specially crafted web requests.

Affected Systems and Versions

        Honeywell Maxpro VMS: HNMSWVMS, HNMSWVMSLT
        Honeywell Maxpro NVR: Maxpro NVR XE, Maxpro NVR SE, Maxpro NVR PE, MPNVRSWXX
        Versions prior to VMS560 Build 595 T2-Patch

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malicious web requests to the affected systems, allowing them to execute remote code without proper authentication.

Mitigation and Prevention

Immediate Steps to Take

        Apply the necessary security patches provided by Honeywell to mitigate the vulnerability.
        Monitor network traffic for any suspicious activity that could indicate exploitation attempts.

Long-Term Security Practices

        Regularly update and patch all software and systems to prevent future vulnerabilities.
        Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

        Ensure all Honeywell Maxpro VMS & NVR systems are updated to at least VMS560 Build 595 T2-Patch to address the vulnerability.

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