CVE-2021-20363 : Security Advisory and Response

IBM Cloud Pak for Applications version 4.3 is vulnerable to cross-site scripting, allowing users to embed arbitrary JavaScript code in the Web UI. This can potentially lead to credentials disclosure within a trusted session.

Understanding CVE-2021-20363

This CVE affects IBM's Cloud Pak for Applications version 4.3, exposing a cross-site scripting vulnerability.

What is CVE-2021-20363?

CVE-2021-20363 is a cross-site scripting vulnerability in IBM Cloud Pak for Applications 4.3 that enables attackers to insert malicious JavaScript code into the Web UI, potentially compromising user credentials.

The Impact of CVE-2021-20363

The vulnerability poses a medium severity risk with a CVSS base score of 5.4, potentially leading to unauthorized access to sensitive information.

Technical Details of CVE-2021-20363

This section provides a deeper insight into the vulnerability.

Vulnerability Description

The vulnerability in IBM Cloud Pak for Applications 4.3 allows threat actors to execute arbitrary JavaScript code through the Web UI, leading to potential credential exposure.

Affected Systems and Versions

IBM Cloud Pak for Applications version 4.3 is the only affected system by this CVE.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious JavaScript code into the Web UI, leveraging its cross-site scripting weakness.

Mitigation and Prevention

Discover the steps to address and prevent the exploitation of CVE-2021-20363.

Immediate Steps to Take

Users should apply official fixes provided by IBM to mitigate the risk of this vulnerability immediately.

Long-Term Security Practices

Implement robust security measures such as regular security updates, security awareness training, and secure coding practices to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly update IBM Cloud Pak for Applications to the latest version and ensure that security patches are promptly applied.