CVE-2019-6633 : Security Advisory and Response
Learn about CVE-2019-6633, a privilege escalation vulnerability in F5 BIG-IP versions, allowing users to bypass Appliance mode restrictions. Find mitigation steps and patching recommendations here.
A privilege escalation vulnerability in F5 BIG-IP versions allows user accounts to bypass Appliance mode restrictions.
Understanding CVE-2019-6633
What is CVE-2019-6633?
CVE-2019-6633 is a vulnerability in F5 BIG-IP versions that enables user accounts with specific roles to bypass Appliance mode restrictions.
The Impact of CVE-2019-6633
This vulnerability could lead to privilege escalation, allowing unauthorized users to gain elevated access within the system.
Technical Details of CVE-2019-6633
Vulnerability Description
The issue affects BIG-IP versions 11.5.1-14.1.0.5, permitting users with Administrator and Resource Administrator roles to circumvent Appliance mode restrictions.
Affected Systems and Versions
- BIG-IP 14.1.0-14.1.0.5
- BIG-IP 14.0.0-14.0.0.4
- BIG-IP 13.0.0-13.1.1.4
- BIG-IP 12.1.0-12.1.4.1
- BIG-IP 11.5.1-11.6.4
Exploitation Mechanism
Users with Administrator and Resource Administrator roles can exploit the vulnerability when the BIG-IP system is licensed with Appliance mode.
Mitigation and Prevention
Immediate Steps to Take
- Apply the necessary patches provided by F5 to address the vulnerability.
- Restrict access to privileged accounts to minimize the risk of exploitation.
Long-Term Security Practices
- Regularly monitor and audit user privileges to prevent unauthorized access.
- Implement least privilege principles to limit user access based on job requirements.
Patching and Updates
Ensure that the BIG-IP software is kept up to date with the latest security patches to mitigate the risk of privilege escalation.