CVE-2019-6634 : Exploit Details and Defense Strategies
Learn about CVE-2019-6634 affecting F5 BIG-IP versions 12.1.0-14.1.0.5. Discover the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in F5 BIG-IP versions 12.1.0-14.1.0.5 can lead to a Denial of Service (DoS) attack due to improperly formatted analytics report requests.
Understanding CVE-2019-6634
This CVE involves a high number of improperly formatted analytics report requests on various versions of F5 BIG-IP, potentially causing instability in the restjavad process.
What is CVE-2019-6634?
The vulnerability in BIG-IP versions 12.1.0-14.1.0.5 can result in the restjavad process becoming unstable, affecting iControl REST and certain sections of TMUI. The attack requires an authenticated user with any role.
The Impact of CVE-2019-6634
The vulnerability can lead to a Denial of Service (DoS) condition, impacting the availability of the affected systems and potentially disrupting services.
Technical Details of CVE-2019-6634
This section provides detailed technical information about the CVE.
Vulnerability Description
A high volume of improperly formatted analytics report requests can cause instability in the restjavad process, affecting iControl REST and specific parts of TMUI.
Affected Systems and Versions
- Product: BIG-IP
- Vendor: F5
- Affected Versions:
- BIG-IP 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
Exploitation Mechanism
The attack requires an authenticated user with any role to send a high number of malformed analytics report requests, triggering instability in the restjavad process.
Mitigation and Prevention
Protecting systems from CVE-2019-6634 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Monitor and restrict analytics report requests to prevent malformed requests.
- Implement strong authentication mechanisms to control user access.
Long-Term Security Practices
- Regularly update and patch F5 BIG-IP systems to address known vulnerabilities.
- Conduct security training for users to recognize and report suspicious activities.
Patching and Updates
- F5 has released patches to address the vulnerability. Ensure timely installation of these patches to mitigate the risk of exploitation.