Ability to fake /proc/cpuinfo and meminfo

[ProfFan]

These two are commonly used in device fingerprinting, and many programs explicitly refuse to work if not granted access to them.

[M66B]

Can you give examples of applications?

[ProfFan]

@M66B
Mainly Chinese (I do not know about US and(or) other countries) Apps like
Xiami music. They use the cpuid as a unique id of a device.
2014/02/12 23:16 "Marcel Bokhorst" [email protected]:

Can you give examples of applications?

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[M66B]

I have white listed /proc/cpuinfo and /proc/meminfo, since these files do not contain privacy sensitive information.

Please let me know if anything else in /proc should be white listed.

[adrenalin24]

How can we deny access to proc/cpuinfo now ?

[M66B]

You can white or black list any /proc file using on demand restricting now.

[ProfFan]

But we cannot fake the contents, right?
2014/02/23 11:03 "Marcel Bokhorst" [email protected]:

You can white or black list any /proc file using on demand restricting now.

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[M66B]

No, that is not possible. I have no solution for that and even I had it would be a headache to support the different flavors of the file.

[ProfFan]

Thank you. Maybe there can be a "advanced" tab for those dangerous things~
2014/02/23 11:30 "Marcel Bokhorst" [email protected]:

No, that is not possible. I have no solution for that and even I had it
would be a headache to support the different flavors of the file.

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