It’s a serious one : The vulnerability, which is a signal handler race condition in OpenSSH’s server (sshd), allows unauthenticated remote code execution (RCE) as root on glibc-based Linux systems; that presents a significant security risk. This race condition affects sshd in its default configuration. [...] This vulnerability, if …

Enlarge (credit: BeeBright / Getty Images / iStockphoto ) Infrastructure used to maintain and distribute the Linux operating system kernel was infected for two years, starting in 2009, by sophisticated malware that managed to get a hold of one of the developers’ most closely guarded resources: the /etc/shadow files that stored …

Enlarge (credit: Matejmo | Getty Images) Cisco’s Talos security team is warning of a large-scale credential compromise campaign that’s indiscriminately assailing networks with login attempts aimed at gaining unauthorized access to VPN, SSH, and web application accounts. The login attempts use both generic usernames and valid usernames targeted …

Last week, the internet dodged a major nation-state attack that would have had catastrophic cybersecurity repercussions worldwide. It’s a catastrophe that didn’t happen, so it won’t get much attention—but it should. There’s an important moral to the story of the attack and its discovery …

Enlarge (credit: Getty Images) Roughly 11 million Internet-exposed servers remain susceptible to a recently discovered vulnerability that allows attackers with a foothold inside affected networks. Once they're in, attackers compromise the integrity of SSH sessions that form the lynchpin for admins to securely connect to computers inside the cloud …

Enlarge / Terrapin is coming for your data. (credit: Aurich Lawson | Getty Images) Sometime around the start of 1995, an unknown person planted a password sniffer on the network backbone of Finland’s Helsinki University of Technology (now known as Aalto University). Once in place, this piece of dedicated hardware …

This is interesting : For the first time, researchers have demonstrated that a large portion of cryptographic keys used to protect data in computer-to-server SSH traffic are vulnerable to complete compromise when naturally occurring computational errors occur while the connection is being established. [...] The vulnerability occurs when there are errors …

Enlarge (credit: Getty Images) For the first time, researchers have demonstrated that a large portion of cryptographic keys used to protect data in computer-to-server SSH traffic are vulnerable to complete compromise when naturally occurring computational errors occur while the connection is being established. Underscoring the importance of their discovery …

In this post, I show you how to use Amazon EC2 Instance Connect to use Secure Shell (SSH) to securely access your Amazon Elastic Compute Cloud (Amazon EC2) instances running on private subnets within an Amazon Virtual Private Cloud (Amazon VPC). EC2 Instance Connect provides a simple and secure …