Reflected XSS in Combodo iTop Dashboard

Executive Summary

This is a reflected Cross-Site Scripting (XSS) vulnerability in Combodo iTop, a web-based IT service management tool. It exists in versions up to 3.2.2-1 and allows attackers to inject malicious scripts via the dashboard_id parameter in /pages/ajax.render.php. The scripts are reflected back to users, potentially enabling unauthorized data access or manipulation.

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Detection Guidance

To detect this vulnerability, check if your iTop instance is running a version prior to 3.2.3. You can verify the version by inspecting the application's footer or configuration files. Additionally, monitor network traffic for requests to /pages/ajax.render.php with the dashboard_id parameter containing suspicious payloads like scripts or HTML tags.

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Impact Analysis

An attacker could exploit this to execute malicious scripts in a user's browser when they visit a crafted link. This may lead to theft of session cookies, unauthorized actions on behalf of the user, or defacement of the application. Users with elevated privileges are at higher risk of data breaches or system compromise.

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Compliance Impact

This XSS vulnerability could lead to unauthorized data access or manipulation, violating GDPR's integrity and confidentiality principles or HIPAA's safeguards for protected health information. Organizations using vulnerable versions may face compliance violations, legal penalties, or reputational damage if exploited.

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Mitigation Strategies

Immediately upgrade iTop to version 3.2.3 or later. If upgrading is not possible, restrict access to the /pages/ajax.render.php endpoint or apply input sanitization for the dashboard_id parameter as shown in the security fix.

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