I think that this has alot to do with the various option supported by the
cmd.exe executable under windows. Certain versions ( notably those in
WinNT and Win2K ) have the ability to perform this function and is
described int he HELP file for CMD.
the actual seperators are probably affected by the parsing of IIS......
======= Win23K cmd help =======================================
Note that multiple commands separated by the command separator '&&'
are accepted for string if surrounded by quotes. Also, for compatibility
reasons, /X is the same as /E:ON, /Y is the same as /E:OFF and /R is the
same as /C. Any other switches are ignored.
If /C or /K is specified, then the remainder of the command line after
the switch is processed as a command line, where the following logic is
used to process quote (") characters:
1. If all of the following conditions are met, then quote characters
on the command line are preserved:
- no /S switch
- exactly two quote characters
- no special characters between the two quote characters,
where special is one of: &<>()@^|
- there are one or more whitespace characters between the
the two quote characters
- the string between the two quote characters is the name
of an executable file.
2. Otherwise, old behavior is to see if the first character is
a quote character and if so, strip the leading character and
remove the last quote character on the command line, preserving
any text after the last quote character.
______________________________
Garreth J Jeremiah.
CCSE,GCIA
IT Specialist ( Security ).
IBM Canada, SO Network Security.
(416) 657-2907
gjeremiaat_private
Emre Yildirim
<emreat_private To: pen-testat_private
g> cc:
Subject: Re: IIS : access to cmd.exe and multiple commands on
10/23/2001 one line
06:12 PM
Please respond
to Emre
Yildirim
Alex Butcher (pentest) wrote:
>>It is unclear to me whether this problem happens only because of the way
the
>>request is made (http://path/to/cmd.exe?/c+command1&command2), or if
there are
>>really different versions of cmd.exe.
This is probably unrelated to this thread but
After playing around with code red infected hosts, I found that
http://path/to/cmd.exe?/rcommand+argument works too. For example
http://path/to/cmd.exe?/rdir+c:\ displays the contents of C:\.
Does anyone know what function the "r" plays in the URL?
--
Emre Yildirim <emreat_private>
GPG KeyID 0xF9E4A1D1 (keyserver.pgp.com)
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This archive was generated by hypermail 2b30 : Wed Oct 24 2001 - 10:24:45 PDT