122 lines
3.0 KiB
Ruby
122 lines
3.0 KiB
Ruby
##
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# $Id: ssl.rb 14319 2011-11-28 23:21:04Z rapid7 $
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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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::Tcp
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include Msf::Auxiliary::WmapScanSSL
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include Msf::Auxiliary::Scanner
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include Msf::Auxiliary::Report
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include Rex::Socket::Comm
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def initialize
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super(
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'Name' => 'HTTP SSL Certificate Information',
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'Version' => '$Revision: 14319 $',
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'Description' => 'Parse the server SSL certificate to obtain the common name and signature algorithm',
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'Author' =>
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[
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'et', #original module
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'Chris John Riley', #additions
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],
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'License' => MSF_LICENSE
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)
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register_options([
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Opt::RPORT(443)
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], self.class)
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end
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# Fingerprint a single host
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def run_host(ip)
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begin
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connect(true, {"SSL" => true}) #Force SSL
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cert = OpenSSL::X509::Certificate.new(sock.peer_cert)
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disconnect
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if cert
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print_status("#{ip}:#{rport} Subject: #{cert.subject}")
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print_status("#{ip}:#{rport} Issuer: #{cert.issuer}")
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print_status("#{ip}:#{rport} Signature Alg: #{cert.signature_algorithm}")
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# Checks for common properties of self signed certificates
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caissuer = (/CA Issuers - URI:(.*?),/i).match(cert.extensions.to_s)
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if caissuer.to_s.empty?
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print_good("Certificate contains no CA Issuers extension... possible self signed certificate")
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else
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print_status("#{ip}:#{rport} " +caissuer.to_s[0..-2])
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end
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if cert.issuer.to_s == cert.subject.to_s
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print_good("Certificate Subject and Issuer match... possible self signed certificate")
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end
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alg = cert.signature_algorithm
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if alg.downcase.include? "md5"
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print_status("#{ip}:#{rport} WARNING: Signature algorithm using MD5 (#{alg})")
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end
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vhostn = nil
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cert.subject.to_a.each do |n|
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vhostn = n[1] if n[0] == 'CN'
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end
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if vhostn
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print_status("#{ip}:#{rport} has common name #{vhostn}")
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# Store the virtual hostname for HTTP
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report_note(
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:host => ip,
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:port => rport,
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:proto => 'tcp',
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:type => 'http.vhost',
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:data => {:name => vhostn}
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)
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# Store the SSL certificate itself
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report_note(
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:host => ip,
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:proto => 'tcp',
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:port => rport,
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:type => 'ssl.certificate',
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:data => {
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:cn => vhostn,
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:subject => cert.subject.to_a,
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:algorithm => alg
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}
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)
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# Update the server hostname if necessary
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if vhostn !~ /localhost|snakeoil/i
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report_host(
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:host => ip,
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:name => vhostn
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)
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end
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end
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else
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print_status("#{ip}:#{rport}] No certificate subject or common name found")
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end
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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rescue ::Timeout::Error, ::Errno::EPIPE
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end
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end
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end |