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#Microsoft introduces Kernel Data Protection, a new platform security technology for preventing data corruption

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#Microsoft introduces Kernel Data Protection, a new platform security technology for preventing data corruption

Microsoft has announced Kernel Data Protection (KDP), a new technology that prevents data corruption attacks by protecting parts of the Windows kernel and drivers through virtualization-based security (VBS). KDP is a set of APIs that provide the ability to mark some kernel memory as read-only, preventing attackers from ever modifying protected memory.

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Microsoft explains that the new platform can mitigate attacks that could be performed via an unsigned driver installed via signed but vulnerable drivers .

The concept of protecting kernel memory as read-only has valuable applications for the Windows kernel, inbox components, security products, and even third-party drivers like anti-cheat and digital rights management (DRM) software. On top of the important security and tamper protection applications of this technology, other benefits include:

  • Performance improvements – KDP lessens the burden on attestation components, which would no longer need to periodically verify data variables that have been write-protected
  • Reliability improvements – KDP makes it easier to diagnose memory corruption bugs that don’t necessarily represent security vulnerabilities
  • Providing an incentive for driver developers and vendors to improve compatibility with virtualization-based security, improving adoption of these technologies in the ecosystem

How Kernel Data Protection works

KDP uses technologies that are supported by default on Secured-core PCs, which implement a specific set of device requirements that apply the security best practices of isolation and minimal trust to the technologies that underpin the Windows operating system. KDP enhances the security provided by the features that make up Secured-core PCs by adding another layer of protection for sensitive system configuration data.

Microsoft has provided a detailed overview of KDP with plenty of technical details. You can learn more about it here: Kernel Data Protection: An overview.

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