CVE-2021-33885 : What You Need to Know

An Insufficient Verification of Data Authenticity vulnerability in B. Braun SpaceCom2 prior to 012U000062 allows a remote unauthenticated attacker to send the device malicious data that will be used in place of the correct data, resulting in full system command access and execution due to the lack of cryptographic signatures on critical data sets.

Understanding CVE-2021-33885

This section will provide insights into the impact and technical details of CVE-2021-33885.

What is CVE-2021-33885?

CVE-2021-33885 is an Insufficient Verification of Data Authenticity vulnerability in B. Braun SpaceCom2 that enables a remote unauthenticated attacker to manipulate data on the device, leading to unauthorized access and control.

The Impact of CVE-2021-33885

The impact of this vulnerability is deemed critical, with high confidentiality and integrity impacts. Attackers can exploit the lack of verification to gain full system command access without needing any privileges, posing a severe security risk to affected systems.

Technical Details of CVE-2021-33885

In this section, the vulnerability description, affected systems and versions, and the exploitation mechanism will be elucidated.

Vulnerability Description

The vulnerability stems from the absence of cryptographic signatures on critical data sets, allowing malicious data substitution by remote attackers without authentication.

Affected Systems and Versions

B. Braun SpaceCom2 versions prior to 012U000062 are affected by this vulnerability, leaving them susceptible to unauthorized data manipulation.

Exploitation Mechanism

Exploiting this vulnerability involves sending malicious data to the device, which is accepted in place of authentic data due to the lack of proper verification processes.

Mitigation and Prevention

This section will outline immediate steps to take and long-term security practices to mitigate the risks associated with CVE-2021-33885.

Immediate Steps to Take

Update B. Braun SpaceCom2 to version 012U000062 or later to patch the vulnerability and enhance data authenticity verification.
Implement network security measures to restrict unauthorized access to the device.

Long-Term Security Practices

Regularly monitor and audit data interactions to detect any anomalies in data authenticity.
Educate users on safe data handling practices to prevent malicious data injection.

Patching and Updates

Stay informed about security updates from B. Braun and promptly apply patches to address known vulnerabilities.