[cifs-protocol] RE: Secret 'last set times' doc incorrect in 2008 -
rguthrie at microsoft.com
Wed Sep 3 19:38:56 GMT 2008
I have completed my research on LsarSetSecret. The documentation provides information when you have an exception case such as when one updates EncryptedCurrentValue. I have included a scenario that might help clarify the behavior:
I have a secret object with old and new secret values set and both have timestamps indicating when the values were last updated/set. I then make a call to LsarSetSecret passing in null for new secret value and a value I choose for old secret value.
This will null out the new secret value and update the old secret value. I should also observe that the timestamps for both old/new secret values would be set to current server time. The table you reference shows this to be the behavior.
Please let us know if you have further questions regarding this issue.
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From: Andrew Bartlett [mailto:abartlet at samba.org]
Sent: Monday, August 25, 2008 7:01 PM
To: Interoperability Documentation Help
Cc: pfif at tridgell.net; cifs-protocol at samba.org
Subject: Secret 'last set times' doc incorrect in 2008
In MS-LSAD 188.8.131.52.3 LsarSetSecret it states that:
The server MUST also maintain "time stamp" values for current and old values of the secret object.
The following table lists the rules by which the time stamps are computed.
Value Effect on old time Effect on new time
Old secret value NULL Old value of "new secret time" Not applicable
Old secret value Non-NULL Current server time Not applicable
New secret value NULL Not applicable Current server time
New secret value Non-NULL Not applicable Current server time
However, tests against Window 2008 show that setting the old value (but not the new) removes the new value, and sets the time to 'current server time'
Please update the docs,
Authentication Developer, Samba Team http://samba.org
Samba Developer, Red Hat Inc.
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