- SeIsTokenChild(): Correctly check whether a caller-provided token
is a child from the current process' primary token by looking at
its ParentTokenId member.
- Add a SeIsTokenSibling() helper to determine whether a caller-provided
token and the current process' primary token are siblings, by comparing
their ParentTokenId's and AuthenticationId's.
NOTE: Children tokens are created through CreateRestrictedToken();
sibling tokens are created through DuplicateToken() (amongst others).
See slide 49 of https://www.slideshare.net/Shakacon/social-engineering-the-windows-kernel-by-james-forshaw
or https://googleprojectzero.blogspot.com/2016/01/raising-dead.html
for some details.
- Overhaul SepCreateToken() and SepDuplicateToken() so that they
implement the "variable information area" of the token, where
immutable lists of user & groups and privileges reside, and the
"dynamic information area" (allocated separately in paged pool),
where mutable data such as the token's default DACL is stored.
Perform the necessary adaptations in SepDeleteToken() and in
NtSetInformationToken().
- Actually dereference the token's logon session, when needed, in the
'TokenSessionReference' case in NtSetInformationToken().
- Overhaul SepFindPrimaryGroupAndDefaultOwner() so that it returns
the indices of candidate primary group and default owner within the
token's user & groups array. This allows for fixing the 'TokenOwner'
and 'TokenPrimaryGroup' cases of NtSetInformationToken(), since the
owner or primary group being set *MUST* already exist in the token's
user & groups array (as a by-product, memory corruptions that existed
before due to the broken way of setting these properties disappear too).
- Lock tokens every time operations are performed on them (NOTE: we
still use a global token lock!).
- Touch the ModifiedId LUID member of tokens everytime a write operation
(property change, etc...) is made on them.
- Fix some group attributes in the SYSTEM process token, SepCreateSystemProcessToken().
- Make the SeCreateTokenPrivilege mandatory when calling NtCreateToken().
- Update the token pool tags.
- Explicitly use the Ex*ResourceLite() versions of the locking functions
in the token locking macros.
- Use TRUE/FALSE instead of 1/0 for booleans.
- Use NULL instead of 0 for null pointers.
- Print 0x prefix for hex values in DPRINTs.
- Use new annotations for SepCreateToken() and SepDuplicateToken().
