Sicurezza

Cisco issues critical security warning for Nexus data-center switches

Pubblicato il

Cisco issued some 40 security advisories today but only one of them was deemed “critical” – a vulnerability in the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode data-center switch that could let an attacker secretly access system resources. The exposure, which was given a Common Vulnerability Scoring System importance of 9.8 out of 10, […]

Sicurezza

Exec: How SDN, SD-WAN, security fit in VMware’s strategy

Pubblicato il

It has been just 10 months since Tom Gillis became VMware‘s senior vice president and general manager of its networking and security business, and in that time he has overseen some major changes in the company’s core products. Most recent is a milestone release of the company’s NSX-T Data Center software, making it VMware’s primary […]

Sicurezza

Cisco warns on HyperFlex security vulnerabilities

Pubblicato il

Cisco this week identified two “High” security vulnerabilities in its HyperFlex data-center package that could let attackers gain control of the system.   HyperFlex is Cisco’s hyperconverged infrastructure that offers computing, networking and storage resources in a single system. More about edge networking The more critical of the two warnings – an 8.8 on Cisco’s […]

Sicurezza

GPUs are vulnerable to side-channel attacks

Pubblicato il

Computer scientists at the University of California at Riverside have found that GPUs are vulnerable to side-channel attacks, the same kinds of exploits that have impacted Intel and AMD CPUs. Two professors and two students, one a computer science doctoral student and a post-doctoral researcher, reverse-engineered a Nvidia GPU to demonstrate three attacks on both […]

Sicurezza

What is Transport Layer Security (TLS)?

Pubblicato il

Despite the goal of keeping Web communications private, flaws in the design and implementation of Transport Layer Security have led to breaches, but the latest version – TLS 1.3 – is an overhaul that strengthens and streamlines the crypto protocol. What is TLS? TLS is a cryptographic protocol that provides end-to-end communications security over networks […]