CVE-2021-35499 : Exploit Details and Defense Strategies

TIBCO Nimbus Stored Cross-site Scripting (XSS) vulnerabilities allow attackers to execute scripts targeting the affected system or victim's local system through social engineering. This article provides a detailed overview of CVE-2021-35499.

Understanding CVE-2021-35499

This section delves into the description, impact, technical details, and mitigation strategies related to the TIBCO Nimbus XSS vulnerabilities.

What is CVE-2021-35499?

The Web Reporting component of TIBCO Nimbus has exploitable Stored Cross Site Scripting (XSS) vulnerabilities. An attacker can use social engineering to execute scripts on the affected system or victim's local system by targeting low privileged users with network access.

The Impact of CVE-2021-35499

The vulnerabilities have a CVSS base score of 8 (High Severity) with low attack complexity, high availability, confidentiality, and integrity impact. Successful exploitation could result in an attacker gaining full administrative access.

Technical Details of CVE-2021-35499

This section covers the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

TIBCO Nimbus versions 10.4.0 and below are affected by Stored Cross Site Scripting (XSS) vulnerabilities in the Web Reporting component, allowing attackers to execute scripts through social engineering.

Affected Systems and Versions

The vulnerability impacts TIBCO Nimbus versions 10.4.0 and below which haven't been updated to version 10.4.1 or later.

Exploitation Mechanism

Attackers with low privileges and network access can exploit the vulnerabilities through social engineering techniques, requiring interaction from a legitimate user other than the attacker.

Mitigation and Prevention

Discover immediate steps to take, long-term security practices, and the significance of applying patches and updates.

Immediate Steps to Take

TIBCO has issued updated versions (10.4.1 or later) to mitigate CVE-2021-35499. Update affected systems promptly to address these vulnerabilities.

Long-Term Security Practices

Incorporate secure coding practices, conduct regular security assessments, and educate users on social engineering tactics to enhance overall security posture.

Patching and Updates

Regularly monitor security advisories and apply patches promptly to mitigate potential risks and protect systems from attacks.