CVE-2020-8952 : Vulnerability Insights and Analysis

Fiserv Accurate Reconciliation 2.19.0, fixed in 3.0.0 or higher, allows XSS via the logout.jsp timeOut parameter.

Understanding CVE-2020-8952

This CVE involves a vulnerability in Fiserv Accurate Reconciliation software that allows for XSS attacks.

What is CVE-2020-8952?

The CVE-2020-8952 vulnerability in Fiserv Accurate Reconciliation 2.19.0 enables cross-site scripting (XSS) through the logout.jsp timeOut parameter.

The Impact of CVE-2020-8952

The vulnerability could allow an attacker to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-8952

Fiserv Accurate Reconciliation 2.19.0 is affected, with the issue resolved in version 3.0.0 or higher.

Vulnerability Description

The vulnerability in Fiserv Accurate Reconciliation 2.19.0 allows for XSS attacks via the logout.jsp timeOut parameter.

Affected Systems and Versions

Product: Fiserv Accurate Reconciliation
Vulnerable Version: 2.19.0
Fixed Version: 3.0.0 or higher

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts through the timeOut parameter in the logout.jsp file.

Mitigation and Prevention

Immediate Steps to Take:

Update Fiserv Accurate Reconciliation to version 3.0.0 or higher to mitigate the vulnerability. Long-Term Security Practices:
Regularly monitor and update software to address security flaws.
Implement input validation mechanisms to prevent XSS attacks.
Educate users on safe browsing practices to minimize the risk of exploitation.
Employ web application firewalls to filter and block malicious traffic.
Conduct security assessments and penetration testing to identify and remediate vulnerabilities.
Stay informed about security advisories and patches released by software vendors.
Consider implementing Content Security Policy (CSP) to mitigate XSS risks.
Employ secure coding practices to prevent injection attacks.
Utilize security tools to scan for and detect vulnerabilities in web applications.
Collaborate with cybersecurity experts to enhance the overall security posture of the organization.

Patching and Updates

Ensure that Fiserv Accurate Reconciliation is regularly updated to the latest version to patch known vulnerabilities and enhance security.