CVE-2020-25166 Explained : Impact and Mitigation

An improper verification of the cryptographic signature of firmware updates of the B. Braun Melsungen AG SpaceCom Version L81/U61 and earlier, and the Data module compactplus Versions A10 and A11 allows attackers to generate valid firmware updates with arbitrary content that can be used to tamper with devices.

Understanding CVE-2020-25166

This CVE involves vulnerabilities in B. Braun Melsungen AG's SpaceCom, Battery Pack SP with Wi-Fi, and Data module compactplus products.

What is CVE-2020-25166?

This CVE describes an improper verification of cryptographic signatures in firmware updates, enabling attackers to create valid updates with malicious content.

The Impact of CVE-2020-25166

The vulnerability has a CVSS base score of 7.6, indicating a high severity issue with potential integrity impact.

Technical Details of CVE-2020-25166

The technical aspects of this CVE are as follows:

Vulnerability Description

Improper verification of cryptographic signatures in firmware updates

Affected Systems and Versions

SpaceCom: Versions L81/U61 and earlier
Battery Pack with Wi-Fi: Versions U61 and L81
Data module compactplus: Versions A10 and A11

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: None

Mitigation and Prevention

To address CVE-2020-25166, follow these steps:

Immediate Steps to Take

Apply updates: SpaceCom - Version U62 or later (United States), L82 or later (outside the United States); Battery Pack SP with Wi-Fi - Version U62 or later (United States), L82 or later (outside the United States); Data module compactplus - Version A12 or later

Long-Term Security Practices

Protect the network: Ensure devices are not directly accessible from the Internet and use a firewall to isolate medical devices from the business network

Patching and Updates

Contact B. Braun for further assistance and refer to the B. Braun Security Advisory for more information