CVE-2022-31248 : Security Advisory and Response

A Observable Response Discrepancy vulnerability in spacewalk-java of SUSE Manager Server 4.1 and SUSE Manager Server 4.2 allows remote attackers to discover valid usernames.

Understanding CVE-2022-31248

This CVE, titled 'SUMA user enumeration via weak error message,' was published by SUSE on June 20, 2022.

What is CVE-2022-31248?

CVE-2022-31248 is a vulnerability in spacewalk-java of SUSE Manager Server versions 4.1 and 4.2 that enables remote attackers to identify valid usernames.

The Impact of CVE-2022-31248

The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 5.3. It has low confidentiality impact, no integrity impact, and requires no special privileges for exploitation.

Technical Details of CVE-2022-31248

This section covers the specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in spacewalk-java allows attackers to discover valid usernames on SUSE Manager Server 4.1 and 4.2.

Affected Systems and Versions

SUSE Manager Server 4.1 with spacewalk-java versions prior to 4.1.46-1 and SUSE Manager Server 4.2 with spacewalk-java versions prior to 4.2.37-1 are affected.

Exploitation Mechanism

Remote attackers can exploit this vulnerability to obtain valid usernames via weak error messages.

Mitigation and Prevention

To protect your systems from CVE-2022-31248, consider the following mitigation strategies.

Immediate Steps to Take

Update SUSE Manager Server 4.1 to version 4.1.46-1 or higher.
Update SUSE Manager Server 4.2 to version 4.2.37-1 or above.

Long-Term Security Practices

Implement strong error handling mechanisms to avoid information leakage vulnerabilities.

Patching and Updates

Regularly apply security patches and updates to ensure the protection of your systems.