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Re: BoF in Windows 2000: ddeshare.exe
- To: bugtraq@xxxxxxxxxxxxxxxxx
- Subject: Re: BoF in Windows 2000: ddeshare.exe
- From: "J. S. Connell" <ankh@xxxxxxxxxxxxx>
- Date: Wed, 10 Nov 2004 11:19:08 -0800 (PST)
On Tue, 9 Nov 2004 Valdis.Kletnieks@xxxxxx wrote:
> Ah, but what if the 2 trailing B's are replaced by 2 Unicode chars that
> together take up 4 bytes? ;)
Or we can realize that in Windows NT, XP, and above, all "characters" are
two-byte-wide UNICODE characters, and that we're not seeing "[NULs]
inserted between characters" but simply UNICODE characters with very low
ordinals.
It's probably worth pointing out that a large fraction of the 16-bit
UNICODE space is taken up with Chinese, Japanese, and Korean characters.
In fact, UNICODE codepoint 0x9090 happens to be the Chinese character for
[li3], "winding" or "meandering". Chinese poetry shellcode, anybody?
--Jeffrey