CVE-2021-20875 : What You Need to Know

A detailed analysis of CVE-2021-20875, which involves an open redirect vulnerability in GroupSession products by Japan Total System Co.,Ltd.

Understanding CVE-2021-20875

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-20875.

What is CVE-2021-20875?

The CVE-2021-20875 vulnerability is an open redirect issue in GroupSession Free edition, GroupSession byCloud, and GroupSession ZION versions 5.1.1 and earlier, allowing remote attackers to redirect users to malicious websites for phishing attacks via specially crafted URLs.

The Impact of CVE-2021-20875

The vulnerability enables unauthenticated remote attackers to manipulate users into accessing malicious web pages, leading to potential phishing attacks and unauthorized information disclosure.

Technical Details of CVE-2021-20875

Explore the specific aspects of the vulnerability.

Vulnerability Description

A detailed analysis of how the open redirect vulnerability can be exploited in GroupSession products by Japan Total System Co.,Ltd.

Affected Systems and Versions

GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier are impacted by CVE-2021-20875.

Exploitation Mechanism

Learn about how remote unauthenticated attackers can exploit this vulnerability to conduct phishing attacks and redirect users to malicious sites.

Mitigation and Prevention

Discover the steps to mitigate and prevent exploitation of CVE-2021-20875.

Immediate Steps to Take

Guidelines on immediate actions to protect systems and users from potential attacks.

Long-Term Security Practices

Best security practices to enhance overall system security and prevent similar vulnerabilities in the future.

Patching and Updates

Importance of applying relevant patches and updates to address the CVE-2021-20875 vulnerability in GroupSession products.