CVE-2022-21952 : Vulnerability Insights and Analysis

A Missing Authentication for Critical Function vulnerability in spacewalk-java of SUSE Manager Server 4.1, SUSE Manager Server 4.2 allows remote attackers to exhaust disk resources leading to DoS. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2022-21952

This CVE, assigned on June 22, 2022, to SUSE, highlights a vulnerability in SUSE Manager Server versions 4.1 and 4.2, impacting spacewalk-java and allowing for a remote Denial of Service (DoS) attack.

What is CVE-2022-21952?

The CVE reveals a Missing Authentication for Critical Function vulnerability in spacewalk-java of SUSE Manager Server 4.1 and 4.2. Attackers can exploit this issue to deplete available disk resources, resulting in a DoS condition.

The Impact of CVE-2022-21952

The vulnerability poses a significant risk as it allows remote attackers to disrupt services by overloading disk resources, potentially leading to service downtime for affected systems and versions.

Technical Details of CVE-2022-21952

The vulnerability affects the following versions of SUSE Manager Server:

SUSE Manager Server 4.1 with spacewalk-java versions less than 4.1.46
SUSE Manager Server 4.2 with spacewalk-java versions less than 4.2.37

Vulnerability Description

The vulnerability stems from a Missing Authentication for Critical Function in spacewalk-java, enabling remote attackers to exhaust disk resources.

Affected Systems and Versions

Systems running SUSE Manager Server 4.1 and 4.2 with specific versions of spacewalk-java are vulnerable to this DoS attack.

Exploitation Mechanism

Attackers can exploit this vulnerability remotely, leveraging the lack of authentication for critical functions in spacewalk-java to consume disk resources.

Mitigation and Prevention

To address this vulnerability and prevent potential DoS attacks, immediate actions and long-term security measures are recommended.

Immediate Steps to Take

Update SUSE Manager Server 4.1 to version 4.1.46 or higher.
Update SUSE Manager Server 4.2 to version 4.2.37 or newer.
Implement network security measures to restrict unauthorized access.

Long-Term Security Practices

Regularly monitor and patch software to address vulnerabilities promptly.
Conduct security assessments to identify and mitigate risks proactively.

Patching and Updates

Stay informed about security updates and apply patches provided by SUSE to secure systems against known vulnerabilities.