What Is CVE-2024-6387?

[Shivani Sharma]

Is your server infrastructure secure? While you invest heavily in cybersecurity, a single vulnerability can unravel years of effort. CVE-2024-6387, also known as the regreSSHion vulnerability, a critical flaw in OpenSSH has left millions of servers exposed to potential exploitation. This vulnerability is not just another item on the long list of cybersecurity concerns; it’s a glaring example of how old issues can resurface in devastating ways. Are your systems patched? Is your team equipped to handle a CVE-2024-6387 exploit like this? Let’s explore what makes CVE-2024-6387 so dangerous and how you can make your organization secure.

CVE-2024-6387, widely referred to as the regreSSHion vulnerability, is a security flaw in OpenSSH ( an essential tool for secure communications and server management). This vulnerability enables unauthenticated remote code execution (RCE) with root-level privileges which can lead to a complete system takeover.

Origins Of The Vulnerability
Regression of CVE-2006-5051: The issue originated from a previously patched flaw that resurfaced in OpenSSH version 8.5p1, released in October 2020.
Widespread Impact: Affecting over 14 million internet-exposed systems, it has been described as one of the most significant vulnerabilities since Log4Shell.
Versions Affected: OpenSSH 8.5p1 to 9.8p1 are impacted, as well as earlier versions without backported fixes​.