CVE-2021-29818 : Security Advisory and Response

This CVE-2021-29818 article provides insights into a Cross-Site Scripting vulnerability affecting IBM Tivoli Netcool/OMNIbus_GUI 8.1.0.

Understanding CVE-2021-29818

In September 2021, a security vulnerability, CVE-2021-29818, was disclosed by IBM affecting Tivoli Netcool/OMNIbus_GUI 8.1.0 due to a cross-site scripting flaw. This vulnerability could enable threat actors to execute arbitrary JavaScript code within the Web UI.

What is CVE-2021-29818?

CVE-2021-29818 is a cross-site scripting vulnerability that exists in IBM Tivoli Netcool/OMNIbus_GUI 8.1.0. Threat actors could exploit this flaw to inject malicious JavaScript code into the Web UI, potentially allowing them to compromise user credentials and manipulate the application's intended behavior.

The Impact of CVE-2021-29818

The impact of CVE-2021-29818 is rated as medium severity with a CVSS base score of 5.4. This vulnerability requires user interaction for exploitation and could lead to the disclosure of sensitive information within a trusted session, posing a risk to the confidentiality and integrity of the affected system.

Technical Details of CVE-2021-29818

Upon the exploitation of this vulnerability, threat actors can execute arbitrary JavaScript code through the affected Web UI.

Vulnerability Description

The vulnerability allows users to embed JavaScript code in the Web UI, potentially leading to the disclosure of sensitive data and unauthorized access within a trusted session.

Affected Systems and Versions

IBM Tivoli Netcool/OMNIbus_GUI 8.1.0 is the only affected version by this cross-site scripting vulnerability.

Exploitation Mechanism

Exploiting CVE-2021-29818 requires user interaction to inject malicious JavaScript into the Web UI, consequently altering the application's expected functionality.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-29818, users are advised to take immediate and long-term security measures.

Immediate Steps to Take

Users should apply the official fix provided by IBM to address the vulnerability in Tivoli Netcool/OMNIbus_GUI 8.1.0. Additionally, organizations should educate users on safe browsing practices.

Long-Term Security Practices

Implementing web application firewalls, conducting regular security assessments, and staying informed about security updates can help enhance the overall security posture of the organization.

Patching and Updates

Regularly monitor for security advisories from IBM and promptly apply patches and updates to address known vulnerabilities.