Category Archives: hypervisors

Hypervisors and Ransomware: Defending Attractive Targets

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With every step towards better cyber defense, malicious attackers counter with new tactics, techniques and procedures. It’s not like the attackers are going to say, “All right, you made it too tough for us this time; we’re checking out.” That is not happening. Increased use of virtualization comes with both operational efficiencies and abilities to […]

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Reverse RDP Attack Also Enables Guest-to-Host Escape in Microsoft Hyper-V

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Remember the Reverse RDP Attack?

Earlier this year, researchers disclosed clipboard hijacking and path-traversal issues in Microsoft’s Windows built-in RDP client that could allow a malicious RDP server to compromise a client computer, reversely.

(Yo… Continue reading Reverse RDP Attack Also Enables Guest-to-Host Escape in Microsoft Hyper-V→

Unpatched VirtualBox Zero-Day Vulnerability and Exploit Released Online

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An independent exploit developer and vulnerability researcher has publicly disclosed a zero-day vulnerability in VirtualBox—a popular open source virtualization software developed by Oracle—that could allow a malicious program to escape virtual machine… Continue reading Unpatched VirtualBox Zero-Day Vulnerability and Exploit Released Online→

Foreshadow Attacks — 3 New Intel CPU Side-Channel Flaws Discovered

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2018 has been quite a tough year for Intel.

While the chip-maker giant is still dealing with Meltdown and Spectre processor vulnerabilities, yet another major speculative execution flaw has been revealed in Intel’s Core and Xeon lines of processors th… Continue reading Foreshadow Attacks — 3 New Intel CPU Side-Channel Flaws Discovered→

Researchers Question Security in AMD’s Upcoming Zen Chips

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Two German researchers are calling into question the security afforded by AMD’s Secure Encrypted Virtualization feature debuting in the chip maker’s upcoming Zen server chips. Continue reading Researchers Question Security in AMD’s Upcoming Zen Chips→