Hello,All
the doc was recommended by FOUR-F. i translated it into English.
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Protecting Stack Overflow of The Widows Xp Sp2
19-12-2004
We often need to use the Global variables and SEH while we are doing EXP towards the bug of overflow. But Now, we can't use this skill to finish our work. What's MS do in the windows XP SP2? She did a lot. For example, she encoded the Global variables.
For detail, The document include the follow:
1、 Processing the frist address of mapping PEB manager structure through random. After a while, we'll see the processing
method is weak, but it is enough to forbiding EXP finished the work or working stably.
2、 Protecting TOP SEH
3、 Protecting the VEH chaining point _RtlpCalloutEntryList
4、 Protecting the cookie of stack structure
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the attachment is part one
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Umm, nothing shows and I get an error saying that I need the simplified chinese launage support pack. ...
changed into txt.
if the txt can't be opened suitably, let me know.
The PDF worked for me but Adobe Reader 7.0 insisted on downloading some Chinese fonts first.
The text works fine.
indeed, text works fine, thx btw!
Hello,
It's a good day for me, i find in MSDN
process's environment block (PEB)
http://msdn.microsoft.com/msdnmag/issues/02/03/Loader/
Later:another news
In another article of MSDN on server 2003, I find
The CoGetContextToken API returns the IObjContext for the current
context. It's interesting primarily because this value is stored
in the ReservedForOle field in the TEB, which is finally
documented in WINTERNL.H
The WINTERNL.H help us not to make errors,subjects to change
//
// Instead of using the Tls fields, use the Win32 TLS APIs
// TlsAlloc, TlsGetValue, TlsSetValue, TlsFree
//
// Instead of using the ReservedForOle field, use the COM API
// CoGetContextToken
//typedef struct _TEB {
BYTE Reserved1[1952];
PVOID Reserved2[412];
PVOID TlsSlots[64];
BYTE Reserved3[8];
PVOID Reserved4[26];
PVOID ReservedForOle; // Windows 2000 only
PVOID Reserved5[4];
PVOID TlsExpansionSlots;
} TEB;
typedef TEB *PTEB;
ToutEnMasm
part2 about Protecting TOP SEH.
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