CVE-2021-33886 Explained : Impact and Mitigation
Learn about CVE-2021-33886, an input sanitization vulnerability in B. Braun SpaceCom2 allowing remote attackers to gain unauthorized command-line access. Mitigation steps included.
An improper sanitization of input vulnerability in B. Braun SpaceCom2 prior to 012U000062 allows a remote unauthenticated attacker to gain user-level command-line access by passing a raw external string straight through to printf statements. The attacker is required to be on the same network as the device.
Understanding CVE-2021-33886
This CVE highlights a vulnerability in B. Braun SpaceCom2 that could be exploited by a remote attacker to gain unauthorized command-line access.
What is CVE-2021-33886?
The vulnerability in B. Braun SpaceCom2 allows an unauthenticated attacker on the same network to execute commands by manipulating input strings.
The Impact of CVE-2021-33886
With a CVSS base score of 8.1, this high-severity vulnerability poses a significant risk by allowing remote attackers to gain elevated privileges on the affected device.
Technical Details of CVE-2021-33886
The technical details of CVE-2021-33886 shed light on the vulnerability's specifics and how it can be exploited.
Vulnerability Description
The vulnerability arises from improper input sanitization in B. Braun SpaceCom2, enabling attackers to bypass security measures and execute unauthorized commands.
Affected Systems and Versions
All versions of B. Braun SpaceCom2 prior to 012U000062 are affected by this vulnerability, exposing them to potential exploitation.
Exploitation Mechanism
By passing a specially crafted external string directly to printf statements, remote unauthenticated attackers can achieve user-level command-line access on the target device.
Mitigation and Prevention
Understanding how to mitigate and prevent CVE-2021-33886 is crucial to safeguarding systems and networks.
Immediate Steps to Take
It is recommended to apply patches or workarounds provided by the vendor to mitigate the vulnerability and prevent potential exploitation.
Long-Term Security Practices
Implementing network segmentation and access controls can enhance security posture and limit the impact of similar vulnerabilities in the future.
Patching and Updates
Regularly update software and firmware to ensure that security patches are applied promptly and efficiently to address known vulnerabilities.