CVE-2020-5893 : Security Advisory and Response

In versions 7.1.5-7.1.8 of BIG-IP Edge Client, a vulnerability exists where the client responds to authentication requests over HTTP when connecting to a VPN over an unsecure network.

Understanding CVE-2020-5893

In this CVE, the BIG-IP Edge Client version 7.1.5-7.1.8 is affected by a security issue related to authentication responses over HTTP.

What is CVE-2020-5893?

The vulnerability in versions 7.1.5-7.1.8 of BIG-IP Edge Client allows responses to authentication requests over HTTP when connecting to a VPN over an unsecure network.

The Impact of CVE-2020-5893

This vulnerability could potentially expose sensitive authentication data to malicious actors monitoring the network traffic.

Technical Details of CVE-2020-5893

Vulnerability Description

When a user connects to a VPN using BIG-IP Edge Client over an unsecure network, the client responds to authentication requests over HTTP.

Affected Systems and Versions

Product: BIG-IP Edge Client
Versions: 7.1.5-7.1.8

Exploitation Mechanism

Attackers can intercept authentication data transmitted over HTTP, leading to potential credential theft.

Mitigation and Prevention

Immediate Steps to Take

Upgrade BIG-IP Edge Client to a secure version that addresses this vulnerability.
Avoid connecting to VPNs over unsecure networks.

Long-Term Security Practices

Implement secure VPN configurations and protocols.
Educate users on the risks of connecting to VPNs over unsecure networks.

Patching and Updates

Regularly check for security updates and patches for BIG-IP Edge Client to mitigate known vulnerabilities.