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Verify identity of process attaching to cdev #45

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droe opened this issue Sep 20, 2018 · 2 comments
Open

Verify identity of process attaching to cdev #45

droe opened this issue Sep 20, 2018 · 2 comments
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status:blocked depends on other unresolved issue, github or external type:kext type:maturity code maturity and technical debt

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droe commented Sep 20, 2018

The kext should verify the identity of the userspace process attaching to /dev/xnumon based on its code signature and refuse attaching if the code is unsigned or signed by the wrong team.
@droe droe added pri:high type:maturity code maturity and technical debt type:kext labels Sep 20, 2018
@droe droe self-assigned this Sep 20, 2018
@droe droe mentioned this issue Sep 20, 2018
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@droe droe added this to the 0.1.7 milestone Sep 20, 2018
droe added a commit that referenced this issue Sep 20, 2018
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Verify identity of code attaching to cdev - requires private KPIs
61ba0d7 
Issue:		#45
@droe droe removed this from the 0.1.7 milestone Sep 20, 2018
@droe droe removed the pri:high label Sep 20, 2018
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droe commented Sep 20, 2018

This seems not to be easily possible with the current cdev interface and using supported KPIs only, because the KPIs in bsd/sys/codesign.h are private.

@droe droe added the label Sep 20, 2018
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droe commented Sep 21, 2018

Reference: https://forums.developer.apple.com/thread/108803

@droe droe added status:blocked depends on other unresolved issue, github or external and removed labels Sep 21, 2018
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