CVE-2020-27713 : Security Advisory and Response

This CVE-2020-27713 article provides insights into a vulnerability affecting BIG-IP version 13.1.3.4, potentially leading to memory leaks and DoS attacks.

Understanding CVE-2020-27713

In certain configurations on version 13.1.3.4, applying a BIG-IP AFM HTTP security profile to a virtual server can trigger memory leaks in the Traffic Management Microkernel (TMM) due to specific request characteristics.

What is CVE-2020-27713?

The vulnerability in BIG-IP version 13.1.3.4 can result in memory leaks in the TMM when a request with particular attributes is received, causing connection resets.

The Impact of CVE-2020-27713

The vulnerability can lead to Denial of Service (DoS) attacks and potential system instability due to memory leaks in the TMM.

Technical Details of CVE-2020-27713

Vulnerability Description

BIG-IP version 13.1.3.4 experiences memory leaks in the TMM when specific request characteristics trigger connection resets.

Affected Systems and Versions

Product: BIG-IP
Version: 13.1.3.4

Exploitation Mechanism

Attackers can exploit this vulnerability by sending requests with specific characteristics to trigger memory leaks and potential DoS attacks.

Mitigation and Prevention

Immediate Steps to Take

Apply the necessary patches provided by the vendor to address the vulnerability.
Monitor system logs for any unusual activities that might indicate exploitation attempts.

Long-Term Security Practices

Regularly update and patch systems to prevent known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories from the vendor and promptly apply patches to mitigate risks.