CVE-2020-24353 : Security Advisory and Response

Pega Platform before 8.4.0 has a XSS issue via stream rule parameters used in the request header.

Understanding CVE-2020-24353

This CVE describes a cross-site scripting (XSS) vulnerability in Pega Platform before version 8.4.0.

What is CVE-2020-24353?

The vulnerability in Pega Platform allows attackers to execute malicious scripts in the context of a user's session.

The Impact of CVE-2020-24353

If exploited, this vulnerability could lead to unauthorized access, data theft, and potential compromise of sensitive information.

Technical Details of CVE-2020-24353

Pega Platform before 8.4.0 is susceptible to XSS attacks due to improper handling of stream rule parameters in request headers.

Vulnerability Description

The XSS issue arises from inadequate input validation of stream rule parameters, enabling attackers to inject and execute malicious scripts.

Affected Systems and Versions

Product: Pega Platform
Versions affected: Before 8.4.0

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious input containing script code, which, when executed, can compromise user sessions and data.

Mitigation and Prevention

To address CVE-2020-24353, follow these mitigation steps:

Immediate Steps to Take

Upgrade Pega Platform to version 8.4.0 or later to eliminate the XSS vulnerability.
Implement strict input validation mechanisms to sanitize user inputs and prevent script injection.

Long-Term Security Practices

Conduct regular security assessments and code reviews to identify and address vulnerabilities proactively.
Educate developers on secure coding practices to prevent similar XSS issues in the future.

Patching and Updates

Stay informed about security updates and patches released by Pega Platform to address known vulnerabilities promptly.