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* Missing TPM 2 related call to Tpm2HierarchyChangeAuth
@ 2021-07-26 14:46 Stefan Berger
  2021-07-27 16:10 ` [EXTERNAL] [edk2-devel] " Bret Barkelew
  0 siblings, 1 reply; 6+ messages in thread
From: Stefan Berger @ 2021-07-26 14:46 UTC (permalink / raw)
  To: jiewen.yao, devel; +Cc: Marc-André Lureau

Hello!

   The TPM 2 code in EDK2 is missing an important call to 
Tpm2HierarchyChangeAuth for the platform hierarchy. We have to set the 
password of that hierarchy and discard the password. See also specs 
section 11: 
https://trustedcomputinggroup.org/wp-content/uploads/TCG_PCClient_PFP_r1p05_v22_02dec2020.pdf

"Platform Firmware MUST protect access to the Platform Hierarchy and 
prevent access to the platform hierarchy by
non-manufacturer-controlled components.  "

I was wondering where we could put that call so it's invoked after the 
user has possibly interacted with the menu and before passing control to 
the next stage such as boot loader.

Regards,

   Stefan



^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to Tpm2HierarchyChangeAuth
  2021-07-26 14:46 Missing TPM 2 related call to Tpm2HierarchyChangeAuth Stefan Berger
@ 2021-07-27 16:10 ` Bret Barkelew
  2021-07-27 16:25   ` Yao, Jiewen
  0 siblings, 1 reply; 6+ messages in thread
From: Bret Barkelew @ 2021-07-27 16:10 UTC (permalink / raw)
  To: devel@edk2.groups.io, stefanb@linux.ibm.com, Yao, Jiewen,
	Jeremiah Cox, Michael Kubacki
  Cc: Marc-André Lureau

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Adding @Jeremiah<mailto:jerecox@microsoft.com>…

Jeremiah, weren’t you or @Michael<mailto:Michael.Kubacki@microsoft.com> shopping this change to MinPlatform?

- Bret

From: Stefan Berger via groups.io<mailto:stefanb=linux.ibm.com@groups.io>
Sent: Monday, July 26, 2021 7:48 AM
To: Yao, Jiewen<mailto:jiewen.yao@intel.com>; devel@edk2.groups.io<mailto:devel@edk2.groups.io>
Cc: Marc-André Lureau<mailto:marcandre.lureau@redhat.com>
Subject: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to Tpm2HierarchyChangeAuth

Hello!

   The TPM 2 code in EDK2 is missing an important call to
Tpm2HierarchyChangeAuth for the platform hierarchy. We have to set the
password of that hierarchy and discard the password. See also specs
section 11:
https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrustedcomputinggroup.org%2Fwp-content%2Fuploads%2FTCG_PCClient_PFP_r1p05_v22_02dec2020.pdf&amp;data=04%7C01%7Cbret.barkelew%40microsoft.com%7Cf2a2262eee2c44b3760c08d95044601a%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637629077356686202%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&amp;sdata=N7VQIw87rHqUAFQ54TvhNwcsPFEwJzdZQ9JZrmX1S4E%3D&amp;reserved=0

"Platform Firmware MUST protect access to the Platform Hierarchy and
prevent access to the platform hierarchy by
non-manufacturer-controlled components.  "

I was wondering where we could put that call so it's invoked after the
user has possibly interacted with the menu and before passing control to
the next stage such as boot loader.

Regards,

   Stefan








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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to Tpm2HierarchyChangeAuth
  2021-07-27 16:10 ` [EXTERNAL] [edk2-devel] " Bret Barkelew
@ 2021-07-27 16:25   ` Yao, Jiewen
  2021-07-27 20:43     ` Stefan Berger
  2021-07-28 14:38     ` Michael Kubacki
  0 siblings, 2 replies; 6+ messages in thread
From: Yao, Jiewen @ 2021-07-27 16:25 UTC (permalink / raw)
  To: devel@edk2.groups.io, bret.barkelew@microsoft.com,
	stefanb@linux.ibm.com, Jeremiah Cox, Michael Kubacki
  Cc: Marc-André Lureau

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Oops. Sorry for late response.

The code is NOT in EDKII, but EDKII-platform as example. https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/MinPlatformPkg/Tcg

We allow a platform having its own implementation. That is why it is NOT in EDKII.

Thank you
Yao Jiewen

From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Bret Barkelew via groups.io
Sent: Wednesday, July 28, 2021 12:11 AM
To: devel@edk2.groups.io; stefanb@linux.ibm.com; Yao, Jiewen <jiewen.yao@intel.com>; Jeremiah Cox <jerecox@microsoft.com>; Michael Kubacki <Michael.Kubacki@microsoft.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Subject: Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to Tpm2HierarchyChangeAuth

Adding @Jeremiah<mailto:jerecox@microsoft.com>...

Jeremiah, weren't you or @Michael<mailto:Michael.Kubacki@microsoft.com> shopping this change to MinPlatform?

- Bret

From: Stefan Berger via groups.io<mailto:stefanb=linux.ibm.com@groups.io>
Sent: Monday, July 26, 2021 7:48 AM
To: Yao, Jiewen<mailto:jiewen.yao@intel.com>; devel@edk2.groups.io<mailto:devel@edk2.groups.io>
Cc: Marc-André Lureau<mailto:marcandre.lureau@redhat.com>
Subject: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to Tpm2HierarchyChangeAuth

Hello!

   The TPM 2 code in EDK2 is missing an important call to
Tpm2HierarchyChangeAuth for the platform hierarchy. We have to set the
password of that hierarchy and discard the password. See also specs
section 11:
https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrustedcomputinggroup.org%2Fwp-content%2Fuploads%2FTCG_PCClient_PFP_r1p05_v22_02dec2020.pdf&amp;data=04%7C01%7Cbret.barkelew%40microsoft.com%7Cf2a2262eee2c44b3760c08d95044601a%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637629077356686202%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&amp;sdata=N7VQIw87rHqUAFQ54TvhNwcsPFEwJzdZQ9JZrmX1S4E%3D&amp;reserved=0

"Platform Firmware MUST protect access to the Platform Hierarchy and
prevent access to the platform hierarchy by
non-manufacturer-controlled components.  "

I was wondering where we could put that call so it's invoked after the
user has possibly interacted with the menu and before passing control to
the next stage such as boot loader.

Regards,

   Stefan








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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to Tpm2HierarchyChangeAuth
  2021-07-27 16:25   ` Yao, Jiewen
@ 2021-07-27 20:43     ` Stefan Berger
  2021-07-28 14:38     ` Michael Kubacki
  1 sibling, 0 replies; 6+ messages in thread
From: Stefan Berger @ 2021-07-27 20:43 UTC (permalink / raw)
  To: Yao, Jiewen, devel@edk2.groups.io, bret.barkelew@microsoft.com,
	Jeremiah Cox, Michael Kubacki
  Cc: Marc-André Lureau

[-- Attachment #1: Type: text/plain, Size: 3664 bytes --]


On 7/27/21 12:25 PM, Yao, Jiewen wrote:
> Oops. Sorry for late response. The code is NOT in EDKII, but 
> EDKII-platform as example. 
> https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/MinPlatformPkg/Tcg 
> We allow a platform having its own implementation. That is why 
> ZjQcmQRYFpfptBannerStart
> This Message Is From an External Sender
> This message came from outside your organization.
> ZjQcmQRYFpfptBannerEnd
>
> Oops. Sorry for late response.
>
> The code is NOT in EDKII, but EDKII-platform as example. 
> https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/MinPlatformPkg/Tcg 
> <https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/MinPlatformPkg/Tcg>
>
> We allow a platform having its own implementation. That is why it is 
> NOT in EDKII.
>

How do edk2 and edk2-platform relate? Do we need to copy code form one 
to the other ?

    Stefan


> Thank you
>
> Yao Jiewen
>
> *From:* devel@edk2.groups.io <devel@edk2.groups.io> *On Behalf Of 
> *Bret Barkelew via groups.io
> *Sent:* Wednesday, July 28, 2021 12:11 AM
> *To:* devel@edk2.groups.io; stefanb@linux.ibm.com; Yao, Jiewen 
> <jiewen.yao@intel.com>; Jeremiah Cox <jerecox@microsoft.com>; Michael 
> Kubacki <Michael.Kubacki@microsoft.com>
> *Cc:* Marc-André Lureau <marcandre.lureau@redhat.com>
> *Subject:* Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to 
> Tpm2HierarchyChangeAuth
>
> Adding @Jeremiah <mailto:jerecox@microsoft.com>…
>
> Jeremiah, weren’t you or @Michael 
> <mailto:Michael.Kubacki@microsoft.com> shopping this change to 
> MinPlatform?
>
> - Bret
>
> *From: *Stefan Berger via groups.io 
> <mailto:stefanb=linux.ibm.com@groups.io>
> *Sent: *Monday, July 26, 2021 7:48 AM
> *To: *Yao, Jiewen <mailto:jiewen.yao@intel.com>; devel@edk2.groups.io 
> <mailto:devel@edk2.groups.io>
> *Cc: *Marc-André Lureau <mailto:marcandre.lureau@redhat.com>
> *Subject: *[EXTERNAL] [edk2-devel] Missing TPM 2 related call to 
> Tpm2HierarchyChangeAuth
>
> Hello!
>
>    The TPM 2 code in EDK2 is missing an important call to
> Tpm2HierarchyChangeAuth for the platform hierarchy. We have to set the
> password of that hierarchy and discard the password. See also specs
> section 11:
> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrustedcomputinggroup.org%2Fwp-content%2Fuploads%2FTCG_PCClient_PFP_r1p05_v22_02dec2020.pdf&amp;data=04%7C01%7Cbret.barkelew%40microsoft.com%7Cf2a2262eee2c44b3760c08d95044601a%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637629077356686202%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&amp;sdata=N7VQIw87rHqUAFQ54TvhNwcsPFEwJzdZQ9JZrmX1S4E%3D&amp;reserved=0 
> <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrustedcomputinggroup.org%2Fwp-content%2Fuploads%2FTCG_PCClient_PFP_r1p05_v22_02dec2020.pdf&amp;data=04%7C01%7Cbret.barkelew%40microsoft.com%7Cf2a2262eee2c44b3760c08d95044601a%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637629077356686202%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&amp;sdata=N7VQIw87rHqUAFQ54TvhNwcsPFEwJzdZQ9JZrmX1S4E%3D&amp;reserved=0>
>
> "Platform Firmware MUST protect access to the Platform Hierarchy and
> prevent access to the platform hierarchy by
> non-manufacturer-controlled components.  "
>
> I was wondering where we could put that call so it's invoked after the
> user has possibly interacted with the menu and before passing control to
> the next stage such as boot loader.
>
> Regards,
>
>    Stefan
>
>
>
>
>
> 
>

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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to Tpm2HierarchyChangeAuth
  2021-07-27 16:25   ` Yao, Jiewen
  2021-07-27 20:43     ` Stefan Berger
@ 2021-07-28 14:38     ` Michael Kubacki
  2021-07-28 14:54       ` Stefan Berger
  1 sibling, 1 reply; 6+ messages in thread
From: Michael Kubacki @ 2021-07-28 14:38 UTC (permalink / raw)
  To: devel, jiewen.yao, bret.barkelew@microsoft.com,
	stefanb@linux.ibm.com, Jeremiah Cox, Michael Kubacki
  Cc: Marc-André Lureau

The main commit of the series Bret mentioned (in edk2-platforms) is here:

https://github.com/tianocore/edk2-platforms/commit/bfabeef4c9a63374784bd19f18a869aa2769e011

Regards,
Michael

On 7/27/2021 12:25 PM, Yao, Jiewen wrote:
> Oops. Sorry for late response.
> 
> The code is NOT in EDKII, but EDKII-platform as example. 
> https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/MinPlatformPkg/Tcg 
> <https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/MinPlatformPkg/Tcg>
> 
> We allow a platform having its own implementation. That is why it is NOT 
> in EDKII.
> 
> Thank you
> 
> Yao Jiewen
> 
> *From:* devel@edk2.groups.io <devel@edk2.groups.io> *On Behalf Of *Bret 
> Barkelew via groups.io
> *Sent:* Wednesday, July 28, 2021 12:11 AM
> *To:* devel@edk2.groups.io; stefanb@linux.ibm.com; Yao, Jiewen 
> <jiewen.yao@intel.com>; Jeremiah Cox <jerecox@microsoft.com>; Michael 
> Kubacki <Michael.Kubacki@microsoft.com>
> *Cc:* Marc-André Lureau <marcandre.lureau@redhat.com>
> *Subject:* Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to 
> Tpm2HierarchyChangeAuth
> 
> Adding @Jeremiah <mailto:jerecox@microsoft.com>…
> 
> Jeremiah, weren’t you or @Michael <mailto:Michael.Kubacki@microsoft.com> 
> shopping this change to MinPlatform?
> 
> - Bret
> 
> *From: *Stefan Berger via groups.io <mailto:stefanb=linux.ibm.com@groups.io>
> *Sent: *Monday, July 26, 2021 7:48 AM
> *To: *Yao, Jiewen <mailto:jiewen.yao@intel.com>; devel@edk2.groups.io 
> <mailto:devel@edk2.groups.io>
> *Cc: *Marc-André Lureau <mailto:marcandre.lureau@redhat.com>
> *Subject: *[EXTERNAL] [edk2-devel] Missing TPM 2 related call to 
> Tpm2HierarchyChangeAuth
> 
> Hello!
> 
>     The TPM 2 code in EDK2 is missing an important call to
> Tpm2HierarchyChangeAuth for the platform hierarchy. We have to set the
> password of that hierarchy and discard the password. See also specs
> section 11:
> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrustedcomputinggroup.org%2Fwp-content%2Fuploads%2FTCG_PCClient_PFP_r1p05_v22_02dec2020.pdf&amp;data=04%7C01%7Cbret.barkelew%40microsoft.com%7Cf2a2262eee2c44b3760c08d95044601a%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637629077356686202%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&amp;sdata=N7VQIw87rHqUAFQ54TvhNwcsPFEwJzdZQ9JZrmX1S4E%3D&amp;reserved=0 
> <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrustedcomputinggroup.org%2Fwp-content%2Fuploads%2FTCG_PCClient_PFP_r1p05_v22_02dec2020.pdf&amp;data=04%7C01%7Cbret.barkelew%40microsoft.com%7Cf2a2262eee2c44b3760c08d95044601a%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637629077356686202%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&amp;sdata=N7VQIw87rHqUAFQ54TvhNwcsPFEwJzdZQ9JZrmX1S4E%3D&amp;reserved=0>
> 
> "Platform Firmware MUST protect access to the Platform Hierarchy and
> prevent access to the platform hierarchy by
> non-manufacturer-controlled components.  "
> 
> I was wondering where we could put that call so it's invoked after the
> user has possibly interacted with the menu and before passing control to
> the next stage such as boot loader.
> 
> Regards,
> 
>     Stefan
> 
> 
> 
> 
> 
> 

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to Tpm2HierarchyChangeAuth
  2021-07-28 14:38     ` Michael Kubacki
@ 2021-07-28 14:54       ` Stefan Berger
  0 siblings, 0 replies; 6+ messages in thread
From: Stefan Berger @ 2021-07-28 14:54 UTC (permalink / raw)
  To: devel, mikuback, jiewen.yao, bret.barkelew@microsoft.com,
	Jeremiah Cox, Michael Kubacki
  Cc: Marc-André Lureau

I now filed this bug:

https://bugzilla.tianocore.org/show_bug.cgi?id=3510

     Stefan


On 7/28/21 10:38 AM, Michael Kubacki wrote:
> The main commit of the series Bret mentioned (in edk2-platforms) is here:
>
> https://github.com/tianocore/edk2-platforms/commit/bfabeef4c9a63374784bd19f18a869aa2769e011 
>
>
> Regards,
> Michael
>
> On 7/27/2021 12:25 PM, Yao, Jiewen wrote:
>> Oops. Sorry for late response.
>>
>> The code is NOT in EDKII, but EDKII-platform as example. 
>> https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/MinPlatformPkg/Tcg 
>> <https://github.com/tianocore/edk2-platforms/tree/master/Platform/Intel/MinPlatformPkg/Tcg> 
>>
>>
>> We allow a platform having its own implementation. That is why it is 
>> NOT in EDKII.
>>
>> Thank you
>>
>> Yao Jiewen
>>
>> *From:* devel@edk2.groups.io <devel@edk2.groups.io> *On Behalf Of 
>> *Bret Barkelew via groups.io
>> *Sent:* Wednesday, July 28, 2021 12:11 AM
>> *To:* devel@edk2.groups.io; stefanb@linux.ibm.com; Yao, Jiewen 
>> <jiewen.yao@intel.com>; Jeremiah Cox <jerecox@microsoft.com>; Michael 
>> Kubacki <Michael.Kubacki@microsoft.com>
>> *Cc:* Marc-André Lureau <marcandre.lureau@redhat.com>
>> *Subject:* Re: [EXTERNAL] [edk2-devel] Missing TPM 2 related call to 
>> Tpm2HierarchyChangeAuth
>>
>> Adding @Jeremiah <mailto:jerecox@microsoft.com>…
>>
>> Jeremiah, weren’t you or @Michael 
>> <mailto:Michael.Kubacki@microsoft.com> shopping this change to 
>> MinPlatform?
>>
>> - Bret
>>
>> *From: *Stefan Berger via groups.io 
>> <mailto:stefanb=linux.ibm.com@groups.io>
>> *Sent: *Monday, July 26, 2021 7:48 AM
>> *To: *Yao, Jiewen <mailto:jiewen.yao@intel.com>; devel@edk2.groups.io 
>> <mailto:devel@edk2.groups.io>
>> *Cc: *Marc-André Lureau <mailto:marcandre.lureau@redhat.com>
>> *Subject: *[EXTERNAL] [edk2-devel] Missing TPM 2 related call to 
>> Tpm2HierarchyChangeAuth
>>
>> Hello!
>>
>>     The TPM 2 code in EDK2 is missing an important call to
>> Tpm2HierarchyChangeAuth for the platform hierarchy. We have to set the
>> password of that hierarchy and discard the password. See also specs
>> section 11:
>> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrustedcomputinggroup.org%2Fwp-content%2Fuploads%2FTCG_PCClient_PFP_r1p05_v22_02dec2020.pdf&amp;data=04%7C01%7Cbret.barkelew%40microsoft.com%7Cf2a2262eee2c44b3760c08d95044601a%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637629077356686202%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&amp;sdata=N7VQIw87rHqUAFQ54TvhNwcsPFEwJzdZQ9JZrmX1S4E%3D&amp;reserved=0 
>> <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrustedcomputinggroup.org%2Fwp-content%2Fuploads%2FTCG_PCClient_PFP_r1p05_v22_02dec2020.pdf&amp;data=04%7C01%7Cbret.barkelew%40microsoft.com%7Cf2a2262eee2c44b3760c08d95044601a%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637629077356686202%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&amp;sdata=N7VQIw87rHqUAFQ54TvhNwcsPFEwJzdZQ9JZrmX1S4E%3D&amp;reserved=0> 
>>
>>
>> "Platform Firmware MUST protect access to the Platform Hierarchy and
>> prevent access to the platform hierarchy by
>> non-manufacturer-controlled components.  "
>>
>> I was wondering where we could put that call so it's invoked after the
>> user has possibly interacted with the menu and before passing control to
>> the next stage such as boot loader.
>>
>> Regards,
>>
>>     Stefan
>>
>>
>>
>>
>>
>>
>
>
> 
>
>

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-07-28 14:54 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-07-26 14:46 Missing TPM 2 related call to Tpm2HierarchyChangeAuth Stefan Berger
2021-07-27 16:10 ` [EXTERNAL] [edk2-devel] " Bret Barkelew
2021-07-27 16:25   ` Yao, Jiewen
2021-07-27 20:43     ` Stefan Berger
2021-07-28 14:38     ` Michael Kubacki
2021-07-28 14:54       ` Stefan Berger

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