CVE-2019-4136 Explained : Impact and Mitigation

IBM Cognos Controller versions 10.2.0, 10.2.1, 10.3.0, 10.3.1, and 10.4.0 are vulnerable to a cross-site scripting (XSS) issue that allows attackers to inject malicious JavaScript code into the Web UI, potentially leading to credential exposure within trusted sessions.

Understanding CVE-2019-4136

This CVE identifies a security vulnerability in IBM Cognos Controller versions 10.2.0, 10.2.1, 10.3.0, 10.3.1, and 10.4.0.

What is CVE-2019-4136?

CVE-2019-4136 is a cross-site scripting vulnerability in IBM Cognos Controller that permits unauthorized users to insert their JavaScript code into the Web UI, altering its intended functionality and posing a risk of credential exposure within secure sessions.

The Impact of CVE-2019-4136

The vulnerability allows attackers to compromise the integrity of the application, potentially leading to unauthorized access and data theft.

Technical Details of CVE-2019-4136

IBM Cognos Controller's vulnerability to cross-site scripting.

Vulnerability Description

Attackers can inject malicious JavaScript code into the Web UI.
Risk of modifying application behavior and exposing credentials.

Affected Systems and Versions

IBM Cognos Controller versions 10.2.0, 10.2.1, 10.3.0, 10.3.1, and 10.4.0.

Exploitation Mechanism

Attackers exploit the vulnerability by injecting crafted JavaScript code into the Web UI.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-4136 vulnerability.

Immediate Steps to Take

Apply official fixes provided by IBM.
Monitor for any unauthorized access or unusual activities.

Long-Term Security Practices

Regularly update and patch IBM Cognos Controller to the latest secure versions.
Educate users on safe browsing practices and the risks of XSS attacks.

Patching and Updates

Stay informed about security bulletins and updates from IBM.