85 lines
1.8 KiB
Ruby
85 lines
1.8 KiB
Ruby
module Msf
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require 'msf/core/exploit/tcp'
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###
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#
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# This module exposes methods that may be useful to exploits that deal with
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# servers that speak the SMTP protocol.
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#
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###
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module Exploit::Remote::Smtp
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include Exploit::Remote::Tcp
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#
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# Creates an instance of an SMTP exploit module.
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#
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def initialize(info = {})
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super
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# Register the options that all SMTP exploits may make use of.
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register_options(
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[
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Opt::RHOST,
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Opt::RPORT(25),
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OptString.new('MAILFROM', [ true, 'FROM address of the e-mail', 'zombie@brains.net']),
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OptString.new('MAILTO', [ true, 'TO address of the e-mail', 'human@ahhhzombies111.net']),
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], Msf::Exploit::Remote::Smtp)
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end
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#
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# This method establishes a SMTP connection to host and port specified by
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# the RHOST and RPORT options, respectively. After connecting, the banner
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# message is read in and stored in the 'banner' attribute.
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#
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def connect(global = true)
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print_status("Connecting to SMTP server #{rhost}:#{rport}...")
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fd = super
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# Wait for a banner to arrive...
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self.banner = fd.get_once
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print_status("Connected to target SMTP server.")
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# Return the file descriptor to the caller
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fd
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end
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#
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# Connect to the remote SMTP server, and begin a DATA transfer
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#
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def connect_login(global = true)
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smtpsock = connect(global)
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raw_send_recv("EHLO X\r\n")
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raw_send_recv("MAIL FROM: #{datastore['MAILFROM']}\r\n")
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raw_send_recv("RCPT TO: #{datastore['MAILTO']}\r\n")
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raw_send_recv("DATA\r\n")
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return true
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end
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#
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# This method transmits an IMAP command and waits for a response. If one is
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# received, it is returned to the caller.
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#
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def raw_send_recv(cmd, nsock = self.sock)
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nsock.put(cmd)
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nsock.get_once
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end
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protected
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#
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# This attribute holds the banner that was read in after a successful call
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# to connect or connect_login.
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#
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attr_accessor :banner
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end
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end
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