CVE-2021-20478 : Security Advisory and Response

IBM Cloud Pak System 2.3 could allow a local user to view another user's artifacts in the self-service console.

Understanding CVE-2021-20478

This CVE affects IBM Cloud Pak System version 2.3, allowing unauthorized access to user artifacts in certain scenarios.

What is CVE-2021-20478?

CVE-2021-20478 is a vulnerability in IBM Cloud Pak System 2.3 that permits a local user to potentially access the artifacts of another user through the self-service console.

The Impact of CVE-2021-20478

The impact of this vulnerability is considered medium with a CVSS base score of 4.0. Although the attack complexity is low, it poses a risk to the confidentiality of the affected system.

Technical Details of CVE-2021-20478

This section provides a detailed technical overview of the vulnerability.

Vulnerability Description

The vulnerability in IBM Cloud Pak System 2.3 allows a local user to view artifacts belonging to another user via the self-service console.

Affected Systems and Versions

IBM Cloud Pak System version 2.3 is specifically affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited by a local user in certain scenarios to access unauthorized information within the self-service console.

Mitigation and Prevention

It is crucial to implement immediate steps to mitigate the risks posed by CVE-2021-20478.

Immediate Steps to Take

Users should review access controls, monitor user activities, and restrict unauthorized access to sensitive information within the Cloud Pak System.

Long-Term Security Practices

Establishing a robust access control policy, conducting regular security audits, and promoting user awareness are essential for long-term security.

Patching and Updates

IBM has released an official fix to address this vulnerability. Users are advised to apply the patch promptly to secure their systems.