CVE Series: OpenSSL Infinite Loop (CVE-2022-0778)

Course Description

This course is for seasoned red teamers, penetration testers, security and vulnerability assessment analysts, and system administrators who want to know how to exploit and protect against the latest vulnerabilities impacting enterprise systems.

OpenSSL is a cryptographic software library used by most HTTPS websites to ensure secure communications using open-source SSL and TLS protocols. Offering a useful toolkit and communication protections since 1998, OpenSSL is available on Microsoft Windows and Unix-like operating systems. But OpenSSL is not without flaws, for on March 15, 2022, a vulnerability was disclosed that permits an infinite loop. Remote attackers could exploit this vulnerability to perform a denial-of-service (DOS) attack and prevent users from accessing their systems and services. With a high CVE score of 7.5, this flaw can severely impact a target system.

After completing this course, you will be able to:

This course is taught by Raymond Evans, a member of the CyDefe team. CyDefe develops and operates capture-the-flag (CTF) style environments, and this course focuses on presenting learners with virtual labs where you can dirctly apply what you’ve learned.

This on-demand course gives you the hands-on experience needed to protect and defend your organization against the critical vulnerability. In one hour, offensive and defensive security professionals can become more prepared to defend their organization against a dangerous vulnerability impacting both Linux and Windows systems. In this course, you will see just how quick and easy it is to exploit this vulnerability from the perspective of an adversary. You will be able to not only exploit and mitigate this critical vulnerability, but also describe its significance to organizational stakeholders.

Define the OpenSSL infinite loop attack, describe its root cause, and communicate its significance to key organizational stakeholders.

Define the OpenSSL infinite loop attack, describe its root cause, and communicate its significance to key organizational stakeholders.

Exploit this vulnerability using publicly available exploit code.

Exploit this vulnerability using publicly available exploit code.

Execute various mitigation tactics to reduce risk.

This on-demand course gives you the hands-on experience needed to protect and defend your organization against the critical vulnerability. In one hour, offensive and defensive security professionals can become more prepared to defend their organization against a dangerous vulnerability impacting both Linux and Windows systems. In this course, you will see just how quick and easy it is to exploit this vulnerability from the perspective of an adversary. You will be able to not only exploit and mitigate this critical vulnerability, but also describe its significance to organizational stakeholders.

Module 1: Exploiting the OpenSSL Infinite Loop Vulnerability

Module 2: Mitigating the OpenSSL Infinite Loop Vulnerability