CVE-2020-15221 Explained : Impact and Mitigation

Combodo iTop is a web-based IT Service Management tool. In iTop versions before 2.7.2 and 3.0.0, an XSS vulnerability can be exploited by modifying the target browser's local storage, specifically in the iTop console breadcrumb. This issue has been addressed in versions 2.7.2 and 3.0.0.

Understanding CVE-2020-15221

What is CVE-2020-15221?

CVE-2020-15221 is a Cross-site Scripting (XSS) vulnerability found in Combodo iTop versions prior to 2.7.2 and 3.0.0.

The Impact of CVE-2020-15221

This vulnerability allows attackers to execute malicious scripts in the context of an iTop user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-15221

Vulnerability Description

The XSS vulnerability in Combodo iTop arises from improper handling of user input, enabling attackers to inject and execute malicious scripts.

Affected Systems and Versions

Product: iTop
Vendor: Combodo
Affected Versions: < 2.7.2

Exploitation Mechanism

By manipulating the target browser's local storage, threat actors can inject malicious scripts into the iTop console breadcrumb, exploiting the XSS vulnerability.

Mitigation and Prevention

Immediate Steps to Take

Upgrade iTop to version 2.7.2 or 3.0.0 to mitigate the XSS vulnerability.
Regularly monitor and review user input and output to detect and prevent XSS attacks.

Long-Term Security Practices

Implement input validation and output encoding to sanitize user input and prevent script injection.
Educate users on safe browsing practices and the risks associated with executing scripts from untrusted sources.

Patching and Updates

Apply security patches and updates provided by Combodo to address known vulnerabilities and enhance the security of iTop.