CVE-2021-23002 : Vulnerability Insights and Analysis

This article provides insights into CVE-2021-23002, a vulnerability affecting BIG-IP APM and Edge Client, potentially leading to information leakage.

Understanding CVE-2021-23002

This section delves into the details of the CVE-2021-23002 vulnerability.

What is CVE-2021-23002?

CVE-2021-23002 impacts BIG-IP APM and Edge Client, allowing the session ID to be visible in the arguments of the f5vpn.exe command during VPN launch on Windows.

The Impact of CVE-2021-23002

The vulnerability poses a risk of information leakage due to the exposure of the session ID in the command arguments.

Technical Details of CVE-2021-23002

Explore the technical aspects of CVE-2021-23002 in this section.

Vulnerability Description

When specific versions of BIG-IP APM and Edge Client are used, the session ID becomes visible during VPN launch, requiring fixes on both the client and server sides.

Affected Systems and Versions

BIG-IP APM versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, along with all 12.1.x and 11.6.x versions, are affected. Edge Client versions 7.2.1.x before 7.2.1.1, 7.1.9.x before 7.1.9.8, and 7.1.8.x before 7.1.8.5 are also impacted.

Exploitation Mechanism

The vulnerability occurs when launching VPN from a browser on Windows, making the session ID visible in the f5vpn.exe command arguments.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2021-23002 vulnerability in this section.

Immediate Steps to Take

Users should apply the necessary client and server-side fixes to address the issue and prevent information leakage.

Long-Term Security Practices

Implement robust security measures and regularly update software to enhance overall security posture.

Patching and Updates

Ensure timely patching of affected versions and stay informed about security updates to prevent exploitation.