OpenSSH RCE Vulnerability: What You Should Know
The regreSSHion vulnerability (CVE-2024-6387) is a signal handler race condition in OpenSSH's sshd daemon, triggered when a client fails to authenticate within the configured login grace...
OpenSSH is an open-source implementation of the SSH (Secure Shell) protocol. It is used by millions of organizations and individuals worldwide for secure system administration, file transfers, and other communications carried out across the internet or other untrusted networks. OpenSSH encrypts identities, passwords, and data in transit so that they cannot be eavesdropped on or stolen.
Because SSH is so ubiquitous for remote administration, a remote code execution vulnerability in the server-side daemon (sshd) has very broad potential impact across nearly every glibc-based Linux environment on the internet.
The vulnerability, later assigned CVE-2024-6387 and nicknamed regreSSHion, is a signal handler race condition in sshd. It is triggered when a connecting client fails to authenticate within a configured window of time known as the login grace time.
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What's inside
3 sections- 1 Table of Contents
- 2 Module 1: The regreSSHion OpenSSH Remote Code Execution Vulnerability
- 3 Summary
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