93 lines
2.6 KiB
Ruby
93 lines
2.6 KiB
Ruby
##
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# $Id$
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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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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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require 'rex/socket/ssl_tcp'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::Remote::Tcp
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include Msf::Auxiliary::WMAPScanServer
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include Msf::Auxiliary::Scanner
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def initialize
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super(
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'Name' => 'HTTP SSL Certificate Checker',
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'Version' => '$Revision$',
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'Author' => 'nebulus',
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'License' => MSF_LICENSE,
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'Description' => %q{
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This module will check the certificate of the specified web servers
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to ensure the subject and issuer match the supplied pattern and that the certificate
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is not expired.
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}
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)
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register_options(
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[
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Opt::RPORT(443),
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OptString.new('ISSUER', [ true, "Show a warning if the Issuer doesn't match this regex", '.*']),
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OptBool.new('SHOWALL', [ false, "Show all certificates regardless of match", false]),
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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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ssock = connect(false, {'SSL' => true})
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cert = OpenSSL::X509::Certificate.new(ssock.peer_cert)
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ssock.close
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if(not cert)
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print_status("#{ip} No certificate subject or CN found")
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return
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end
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issuer_pattern = Regexp.new(datastore['ISSUER'], Regexp::EXTENDED, 'n')
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sub = cert.subject.to_a
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before_d = "#{cert.not_before}".split
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before_t = before_d[3].split(":")
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after_d = "#{cert.not_after}".split
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after_t = after_d[3].split(":")
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before = Time.utc(before_d[5],before_d[1],before_d[2],before_t[0],before_t[1],before_t[3])
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after = Time.utc(after_d[5],after_d[1],after_d[2],after_t[0],after_t[1],after_t[3])
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now = Time.now
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a = now <=> before
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b = now <=> after
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vhostn = 'EMPTY'
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sub.each do |n|
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if n[0] == 'CN'
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vhostn = n[1]
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end
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end
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if ( not "#{cert.issuer}" =~ /#{issuer_pattern}/)
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print_status("WARNING (Issuer): #{ip} / #{vhostn} : #{cert.issuer}" )
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end
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print_status("#{ip} / #{vhostn} Issuer: #{cert.issuer}") if datastore['SHOWALL']
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if ( a < 1 or b > 0 )
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print_status("WARNING (Expired): #{ip} / #{vhostn} : Cert is expired/invalid: Before: " + before.to_s + " After " + after.to_s)
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end
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print_status("#{ip} / #{vhostn} Before: " + before.to_s + " After: " + after.to_s + " Now: " + now.to_s) if datastore['SHOWALL']
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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
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