Virtualisation security covers hypervisors, virtual machines, and isolated workloads, where flaws or misconfiguration can expose systems and data.
Search across headline titles and summaries.
Background for this topic.
Virtualisation uses software to divide or simulate computing resources so multiple isolated virtual machines (VMs) can share a physical host. Each VM can run its own operating system and applications; a hypervisor controls access to the host’s processors, memory, storage and devices. The term can also include virtual networks and storage, while containers provide a related but less isolated form of workload virtualisation.
Security depends on the hypervisor and its management plane being securely configured, patched and access-controlled. A hypervisor vulnerability or misconfiguration can expose data across VMs, and a VM escape can allow code running in one guest to reach the host or other guests. Virtual machine images, templates and snapshots may retain credentials or sensitive data and therefore require inventory, integrity checks, encryption and controlled retention. Network segmentation between virtual workloads should be enforced through explicit policies rather than assumed from virtual separation. These controls also support reliable investigation and recovery by preserving trustworthy images and records of administrative changes.
The RansomHub ransomware operation is using a Linux encryptor designed specifically to encrypt VMware ESXi environments in corporate attacks. [...]
A suspected Chinese threat actor tracked as UNC3886 uses publicly available open-source rootkits named 'Reptile' and 'Medusa' to remain hidden on VMware ESXi virtual machines, allowing them to conduct credential theft, command execution, and lateral movement. [...]
UNC3886 Targeted Edge Devices for Persistence, Mandiant SaysA suspected Chinese hacking group used open-source rootkits to ensure persistence on compromised edge devices such as VMware ESXi servers for espionage campaigns, Google Mandiant said. The hacking group, which Mandiant tracks as UNC3886, is likely a Chinese threat group hacking for Beijing.
The China-nexus cyber espionage actor linked to the zero-day exploitation of security flaws in Fortinet, Ivanti, and VMware devices has been observed utilizing multiple persistence mechanisms in order to maintain unfettered access to compromised environments
A trio of bugs could allow hackers to escalate privileges and remotely execute code on virtual machines deployed across cloud environments.
VMware has issued a security advisory addressing critical vulnerabilities in vCenter Server, including remote code execution and local privilege escalation flaws. [...]
VMware has disclosed critical vulnerabilities impacting its VMware vSphere and VMware Cloud Foundation products, with patches available for customers
Cybersecurity researchers have uncovered a new malware campaign that targets publicly exposed Docket API endpoints with the aim of delivering cryptocurrency miners and other payloads
VMware has released updates to address critical flaws impacting Cloud Foundation, vCenter Server, and vSphere ESXi that could be exploited to achieve privilege escalation and remote code execution
Specially crafted network packet could allow remote code execution and access to VM fleets VMware by Broadcom has revealed a pair of critical-rated flaws in vCenter Server – the tool used to manage virtual machines and hosts in its flagship Cloud Foundation and vSphere suites.…