[cifs-protocol] RE: How to validate the PAC in NETLOGON
rguthrie at microsoft.com
Fri Jan 9 16:35:41 GMT 2009
You suggestion to improve the text in MS-APDS has been accepted and we have modified the documentation accordingly. I have attached the updated section for completeness. Thank you for your feedback.
Support Escalation Engineer
Open Protocols Support Team
Tel: +1 (469) 775-7794
E-mail: rguthrie at microsoft.com
From: Andrew Bartlett [mailto:abartlet at samba.org]
Sent: Thursday, November 13, 2008 2:37 PM
To: Richard Guthrie
Cc: pfif at tridgell.net; cifs-protocol at samba.org
Subject: RE: How to validate the PAC in NETLOGON SRX080918600905
On Thu, 2008-11-13 at 06:23 -0800, Richard Guthrie wrote:
> We have revised the MS-PAC documentation to more accurately reflect
> signature verification requirements in section 2.8 as well as made
> several updates to clarify the relationship between MS-PAC and
> MS-KILE. I have attached those three documents for your review. The
> changes in each document are highlighted in yellow.
> Please let us know if you have any further questions.
In MS-APDS 126.96.36.199 Processing a KERB_VERIFY_PAC_REQUEST Message You really need to say:
The server MUST verify the signature over the server checksum ([MS-PAC]section 2.8.2) and compare the result against the KDC checksum passed in the request.
As you should not say 'signature' without indicating what it is over, and 2.8.2 is a better reference.
Authentication Developer, Samba Team http://samba.org
Samba Developer, Red Hat Inc.
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