CVE-2020-10276 Explained : Impact and Mitigation

CVE-2020-10276, also known as RVD#2558, involves default credentials on SICK PLC that allow disabling safety features.

Understanding CVE-2020-10276

This CVE highlights a critical vulnerability in the MiR100 product by Mobile Industrial Robots A/S.

What is CVE-2020-10276?

The default password for the safety PLC can be easily found, enabling the upload of a manipulated program that disables the emergency stop, compromising safety.

The Impact of CVE-2020-10276

The vulnerability has a critical severity level with high impacts on availability, confidentiality, and integrity, posing significant risks to operational safety.

Technical Details of CVE-2020-10276

This section delves into the specifics of the vulnerability.

Vulnerability Description

The default password allows unauthorized access to the safety PLC, enabling the upload of malicious programs that can disable critical safety features.

Affected Systems and Versions

Affected Product: MiR100
Vendor: Mobile Industrial Robots A/S
Vulnerable Versions: v2.8.1.1 and earlier

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
Scope: Unchanged
User Interaction: None
Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and Prevention

Protecting systems from CVE-2020-10276 is crucial for maintaining operational safety.

Immediate Steps to Take

Change default passwords on the safety PLC to strong, unique credentials.
Regularly monitor and audit access to the safety PLC.
Implement network segmentation to restrict access to critical components.

Long-Term Security Practices

Conduct regular security training for personnel to raise awareness of best practices.
Implement multi-factor authentication for accessing critical systems.
Stay informed about security updates and patches from the vendor.

Patching and Updates

Apply security patches provided by Mobile Industrial Robots A/S promptly to address the vulnerability.