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CVE-2020-12496 Explained : Impact and Mitigation

Learn about CVE-2020-12496 affecting Endress+Hauser Ecograph T and Memograph M devices with firmware version V2.0.0. Discover the impact, affected systems, and mitigation steps.

Endress+Hauser Ecograph T and Memograph M devices with firmware version V2.0.0 are vulnerable to exposing sensitive information to unauthorized users.

Understanding CVE-2020-12496

This CVE involves the exposure of sensitive data on specific Endress+Hauser devices due to a security flaw in the firmware.

What is CVE-2020-12496?

The vulnerability in Endress+Hauser Ecograph T and Memograph M devices allows unauthorized users to access sensitive information due to issues in the access-control matrix.

The Impact of CVE-2020-12496

The vulnerability has a CVSS base score of 6.5, indicating a medium severity issue with high confidentiality impact.

Technical Details of CVE-2020-12496

Endress+Hauser devices with firmware version V2.0.0 are affected by this vulnerability.

Vulnerability Description

The firmware allows unauthorized access to sensitive data due to a flawed access-control matrix.

Affected Systems and Versions

        RSG35 - Ecograph T
        ORSG35 - Ecograph T Neutral/Private Label
        RSG45 - Memograph M
        ORSG45 - Memograph M Neutral/Private Label
        Firmware version V2.0.0

Exploitation Mechanism

Unauthorized users with low rights can access information from endpoints not meant for them.

Mitigation and Prevention

Endress+Hauser recommends specific measures to mitigate the vulnerability.

Immediate Steps to Take

        Configure a perimeter firewall to block traffic from untrusted networks
        Change default passwords for operator, service, and admin accounts

Long-Term Security Practices

        Regularly update firmware and security patches
        Conduct security audits and assessments

Patching and Updates

Endress+Hauser will not change the firmware behavior, so customers must implement the provided mitigation measures.

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