CVE-2019-6592 : Vulnerability Insights and Analysis

In versions 14.1.0 to 14.1.0.1 of BIG-IP by F5 Networks, TMM may experience a restart and generate a core file while validating SSL certificates, potentially leading to a DoS vulnerability.

Understanding CVE-2019-6592

This CVE involves a vulnerability in the BIG-IP platform that could result in a Denial of Service (DoS) condition.

What is CVE-2019-6592?

CVE-2019-6592 pertains to a flaw in BIG-IP versions 14.1.0 to 14.1.0.1 where the Traffic Management Microkernel (TMM) might restart and create a core file during SSL certificate validation in client or server SSL profiles.

The Impact of CVE-2019-6592

The vulnerability could be exploited to cause a DoS condition, potentially disrupting services and affecting system availability.

Technical Details of CVE-2019-6592

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The issue in BIG-IP 14.1.0-14.1.0.1 allows TMM to restart and generate a core file when validating SSL certificates, posing a risk of service disruption.

Affected Systems and Versions

Product: BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator)
Vendor: F5 Networks, Inc.
Versions: 14.1.0-14.1.0.1

Exploitation Mechanism

The vulnerability can be exploited by triggering the SSL certificate validation process in client or server SSL profiles, causing TMM to restart and potentially leading to a DoS scenario.

Mitigation and Prevention

To address CVE-2019-6592, follow these mitigation strategies:

Immediate Steps to Take

Apply vendor-supplied patches promptly.
Monitor F5 Networks for security advisories and updates.

Long-Term Security Practices

Regularly update and patch BIG-IP systems.
Implement network segmentation and access controls.

Patching and Updates

Ensure timely installation of patches and updates provided by F5 Networks to mitigate the vulnerability effectively.