CVE-2019-6661 Explained : Impact and Mitigation

A vulnerability in the BIG-IP APM system could lead to a Denial of Service (DoS) condition due to excessive resource consumption.

Understanding CVE-2019-6661

This CVE involves the BIG-IP APM system experiencing resource exhaustion when handling specific requests.

What is CVE-2019-6661?

The vulnerability in the APD/APMD daemon of BIG-IP APM versions 11.5.1-14.1.2 could result in a DoS attack by consuming excessive resources.

The Impact of CVE-2019-6661

The vulnerability could allow an attacker to exploit the system, causing a DoS condition by overwhelming the APD/APMD daemon with specific requests.

Technical Details of CVE-2019-6661

The technical aspects of the vulnerability are crucial to understanding its implications.

Vulnerability Description

Excessive resource consumption by the APD/APMD daemon on affected BIG-IP APM versions when processing certain requests.

Affected Systems and Versions

BIG-IP APM 14.1.0-14.1.2
BIG-IP APM 14.0.0-14.0.1
BIG-IP APM 13.1.0-13.1.3.1
BIG-IP APM 12.1.0-12.1.4.1
BIG-IP APM 11.5.1-11.6.5

Exploitation Mechanism

The vulnerability is exploited by sending specific requests to the BIG-IP APM system, triggering resource exhaustion in the APD/APMD daemon.

Mitigation and Prevention

Protecting systems from CVE-2019-6661 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply vendor-supplied patches or updates to mitigate the vulnerability.
Monitor system resources for any unusual spikes in resource consumption.

Long-Term Security Practices

Regularly update and patch the BIG-IP APM system to address known vulnerabilities.
Implement network security measures to detect and prevent DoS attacks.

Patching and Updates

F5 provides patches and updates to address the vulnerability in affected versions of BIG-IP APM.