Virtualisation security covers hypervisors, virtual machines, and isolated workloads, where flaws or misconfiguration can expose systems and data.
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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.
Hacking Tactics Linked to Retail, Airline CompromisesThe loosely connected band of adolescent cybercriminals tracked as Scattered Spider has joined the VMware hypervisor hacking bandwagon, pivoting into virtual servers through corporate instances of Active Directory. vSphere integration with Active Directory adds a yet another layer of insecurity.
Suspected China-nexus threat actors targeted virtual environments and used several tools and techniques to bypass security barriers and reach isolated portions of victims' networks.
Sygnia observed Chinese cyber campaign dubbed Fire Ant deploying sophisticated techniques to gain full compromise of victim environments, discovering isolated assets
Virtualization and networking infrastructure have been targeted by a threat actor codenamed Fire Ant as part of a prolonged cyber espionage campaign
The threat actor behind the exploitation of vulnerable Craft Content Management System (CMS) instances has shifted its tactics to target Magento CMS and misconfigured Docker instances
Despite pledging help for those who don’t sign for subs, Broadcom says validating their entitlements will delay support Exclusive Some customers of Broadcom’s VMware business currently cannot access security patches, putting them at greater risk of attack.…