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17 lines
482 B
Markdown
17 lines
482 B
Markdown
# MSR
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## Introduction
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This plugin checks if the Model-specific registers (MSRs) indicate the
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Direct Connect Interface (DCI) is enabled.
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DCI allows debugging of Intel processors using the USB3 port. DCI should
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always be disabled and locked on production hardware as it allows the
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attacker to disable other firmware protection methods.
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The result will be stored in a security attribute for HSI.
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## External Interface Access
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This plugin requires read access to `/sys/class/msr`.
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