CVE-2019-6621 Explained : Impact and Mitigation

A vulnerability in undisclosed iControl REST workers on various versions of BIG-IP and BIG-IQ allows command injection, impacting admin/resource admin users.

Understanding CVE-2019-6621

This CVE involves a privilege escalation vulnerability affecting F5's BIG-IP and BIG-IQ products.

What is CVE-2019-6621?

The vulnerability allows command injection by admin/resource admin users on affected versions of BIG-IP and BIG-IQ.
It affects both iControl REST and tmsh implementations.

The Impact of CVE-2019-6621

Admin/resource admin users can exploit the vulnerability, leading to potential privilege escalation.

Technical Details of CVE-2019-6621

This section provides technical insights into the vulnerability.

Vulnerability Description

An undisclosed iControl REST worker vulnerability exists on specific versions of BIG-IP and BIG-IQ.

Affected Systems and Versions

BIG-IP versions 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4.1, 11.6.1-11.6.3.4, 11.5.2-11.5.8
BIG-IQ versions 7.0.0-7.1.0.2, 6.0.0-6.1.0, 5.1.0-5.4.0

Exploitation Mechanism

Command injection can be performed by admin/resource admin users on the affected iControl REST and tmsh implementations.

Mitigation and Prevention

Protect your systems from CVE-2019-6621 with these strategies.

Immediate Steps to Take

Apply vendor-provided patches and updates promptly.
Monitor network traffic for any signs of exploitation.
Restrict access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement strong access controls and user permissions.

Patching and Updates

Stay informed about security advisories and apply patches as soon as they are available.