full-disclosure - CounterChaos <= 0.48c SQL Injection Vulnerability

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Date: Fri, 04 Aug 2006 00:07:38 +0100
From: Tamriel <tamriel@....net>
To: full-disclosure@...ts.grok.org.uk
Cc: bugtrack@...urityfocus.com
Subject: CounterChaos <= 0.48c SQL Injection Vulnerability

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Hash: SHA1
 
      Advisory: CounterChaos <= 0.48c SQL Injection Vulnerability
  Release Date: 2006/08/04
 Last Modified: 2006/08/03
        Author: Tamriel [tamriel at gmx dot net]
   Application: CounterChaos <= 0.48c
          Risk: Moderate
 Vendor Status: not contacted
   Vendor Site: www.chaossoft.de


 Overview:

   Quote from www.chaossoft.de:

   "CounterChaos ist ein flexibler Onlinecounter fuer Ihre Homepage.
    Er ist klein und kompakt in PHP geschrieben und benutzt eine
    mySQL-Datenbank, um die Daten abzuspeichern."


 Details:

      SQL Injection Vulnerabilities in counterchaos.php
      (arround line 35-45)
      
      ...
      
      $referer= $_SERVER["HTTP_REFERER"];
      $referer=strtolower($referer);

      ...

          // Ohne www auch nicht gefunden => im Original speichern
          mysql_query("INSERT INTO $tabellerefi SET
monat='$akt_monat', jahr='$akt_jahr',
          refi='$referer', treffer='1'") or die(mysql_error());
      }

      ...

      Here an attacker can fake his http referer and so inject his own
      sql queries (magic quotes must be off).


 Solution:

      Take a view on PHP's ysql_real_escape_string function.

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