CVE-2021-20361 Explained : Impact and Mitigation

IBM Cloud Pak for Applications 4.3 is vulnerable to a cross-site scripting (XSS) attack, allowing threat actors to inject arbitrary JavaScript code into the Web UI. This can potentially alter the intended functionality, leading to credential disclosure within a trusted session.

Understanding CVE-2021-20361

This section provides insights into the impact, technical details, and mitigation strategies related to the CVE-2021-20361 vulnerability.

What is CVE-2021-20361?

CVE-2021-20361 pertains to a cross-site scripting vulnerability in IBM Cloud Pak for Applications 4.3, posing a medium severity risk. By exploiting this vulnerability, attackers can execute malicious scripts in the context of a legitimate user session.

The Impact of CVE-2021-20361

The XSS vulnerability in IBM Cloud Pak for Applications 4.3 can potentially lead to credential disclosure and unauthorized access to sensitive information. Attackers can manipulate the Web UI to execute harmful scripts, compromising the integrity of the application and user data.

Technical Details of CVE-2021-20361

Explore the specifics of the vulnerability in terms of description, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability allows attackers to embed JavaScript code in the Web UI, enabling them to manipulate application behavior and potentially compromise user credentials.

Affected Systems and Versions

IBM Cloud Pak for Applications version 4.3 is known to be impacted by this XSS vulnerability, highlighting the need for immediate action to secure vulnerable systems.

Exploitation Mechanism

Threat actors can exploit the XSS flaw by injecting malicious scripts into input fields, URLs, or other user-generated content in the Web UI, leveraging the trusted user session for unauthorized activities.

Mitigation and Prevention

Learn about the necessary steps to mitigate the risks posed by CVE-2021-20361 and secure IBM Cloud Pak for Applications installations.

Immediate Steps to Take

Users are advised to apply official fixes provided by IBM to address the XSS vulnerability in Cloud Pak for Applications 4.3. Additionally, implementing robust input validation mechanisms can help prevent script injections.

Long-Term Security Practices

Enhance the security posture of your systems by conducting regular security assessments, staying informed about emerging threats, and educating users about safe browsing practices to mitigate XSS risks.

Patching and Updates

Stay vigilant for security updates and patches released by IBM for Cloud Pak for Applications to address known vulnerabilities and protect your IT infrastructure from potential exploits.