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Category — private SSH keys
OpenSSH now supports FIDO U2F security keys for 2-factor authentication

OpenSSH now supports FIDO U2F security keys for 2-factor authentication

Feb 17, 2020
Here's excellent news for sysadmins. You can now use a physical security key as hardware-based two-factor authentication to securely log into a remote system via SSH protocol. OpenSSH, one of the most widely used open-source implementations of the Secure Shell (SSH) Protocol, yesterday announced the 8.2 version of the software that primarily includes two new significant security enhancements. First, OpenSSH 8.2 added support for FIDO/U2F hardware authenticators , and the second, it has deprecated SSH-RSA public key signature algorithm and planned to disable it by default in the future versions of the software. FIDO (Fast Identity Online) protocol based hardware security devices are stronger and fool-proof mechanisms for authentication because it enables public-key cryptography to protect against advanced malware, phishing, and man-in-the-middle attacks. "In OpenSSH, FIDO devices are supported by new public key types' ecdsa-sk' and 'ed25519-sk', along
OpenSSH Now Encrypts Secret Keys in Memory Against Side-Channel Attacks

OpenSSH Now Encrypts Secret Keys in Memory Against Side-Channel Attacks

Jun 22, 2019
In recent years, several groups of cybersecurity researchers have disclosed dozens of memory side-channel vulnerabilities in modern processors and DRAM s, like Rowhammer , RAMBleed , Spectre, and Meltdown . Have you ever noticed they all had at least one thing in common? That's OpenSSH. As a proof-of-concept, many researchers demonstrated their side-channel attacks against OpenSSH application installed on a targeted computer, where an unprivileged attacker-owned process exploits memory read vulnerabilities to steal secret SSH private keys from the restricted memory regions of the system. That's possible because OpenSSH has an agent that keeps a copy of your SSH key in the memory so that you don't have to type your passphrase every time you want to connect to the same remote server. However, modern operating systems by default store sensitive data, including encryption keys and passwords, in the kernel memory which can not be accessed by user-level privileged p
5 Actionable Steps to Prevent GenAI Data Leaks Without Fully Blocking AI Usage

5 Actionable Steps to Prevent GenAI Data Leaks Without Fully Blocking AI Usage

Oct 01, 2024Generative AI / Data Protection
Since its emergence, Generative AI has revolutionized enterprise productivity. GenAI tools enable faster and more effective software development, financial analysis, business planning, and customer engagement. However, this business agility comes with significant risks, particularly the potential for sensitive data leakage. As organizations attempt to balance productivity gains with security concerns, many have been forced to choose between unrestricted GenAI usage to banning it altogether. A new e-guide by LayerX titled 5 Actionable Measures to Prevent Data Leakage Through Generative AI Tools is designed to help organizations navigate the challenges of GenAI usage in the workplace. The guide offers practical steps for security managers to protect sensitive corporate data while still reaping the productivity benefits of GenAI tools like ChatGPT. This approach is intended to allow companies to strike the right balance between innovation and security. Why Worry About ChatGPT? The e
Simplifying SSH keys and SSL Certs Management across the Enterprise using Key Manager Plus

Simplifying SSH keys and SSL Certs Management across the Enterprise using Key Manager Plus

Nov 02, 2016
With rapidly growing web-based services and widely expanding locations, organizations are using more and more SSL certificates as well as SSH keys than ever. From authentication, confidentiality, and integrity to preventing the organization from industrial espionage, SSL certificates play an important role. Managing SSL certificates across networks to ensure protection and prevent unanticipated failures is critical, and it also becomes complicated with multiple locations, divisions as well as the fastest growing use of external cloud-based services. This not only complicates the process of managing individual SSL certificate and SSH key for an administrator but also costs organizations heavily. A key solution for this issue is to use an advanced and efficient SSL certificate and SSH Key management system. An effective solution enables an organization to know what kinds of certificates and keys it has, simplifies certificate discovery and monitor across multiple vendors, an
cyber security

2024 State of SaaS Security Report eBook

websiteWing SecuritySaaS Security / Insider Threat
A research report featuring astonishing statistics on the security risks of third-party SaaS applications.
Hundreds of SSH Private Keys exposed via GitHub Search

Hundreds of SSH Private Keys exposed via GitHub Search

Jan 25, 2013
GitHub is a source code repository which lets developers work on programs together as a team, even when they are in different locations. Each repository on the site is a public folder designed to hold the software code that a developer is working on. This Tuesday GitHub announced a major upgrades to the site's search engine, " Finding great code on GitHub just got a whole lot easier, ". Yesterday few twitter users pointed out that there is no shortage of embedded private SSH keys and passwords that can easily be found via GitHub new feature. If you upload security information (keys/passwords etc) to a public repository, new search feature will allow anyone to find them. Today, GitHub's search function stopped working , though the site didn't acknowledge the cause. Updated message is " Search remains unavailable. The cluster is recovering slowly and we continue to monitor its progress. We'll provide further updates as they become available
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