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Update MySQL Injection.md

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fix typo
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SQL Injection/MySQL Injection.md
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@ -442,7 +442,7 @@ make_set(6,@:=0x0a,(select(1)from(information_schema.columns)where@:=make_set(51
## MYSQL Wide byte injection ## MYSQL Wide byte injection
Wide byte injection works only when mysql's encoding is set to gbk, a small php example: Wide byte injection works only when mysql encoding is set to gbk, a small php example:
```php ```php
function check_addslashes($string) function check_addslashes($string)
@ -462,13 +462,11 @@ print_r(mysql_error());
PHP will check quote and add backslash, like translates `'` into `\'`. PHP will check quote and add backslash, like translates `'` into `\'`.
when input: `?id=1'` --> `SELECT * FROM users WHERE id='1\'' LIMIT 0,1`, not working. When input: `?id=1'` --> PHP add backslash --> `SELECT * FROM users WHERE id='1\'' LIMIT 0,1` --> not working.
But if add `%df` like `?id=1%df'` --> `SELECT * FROM users WHERE id='1運\' LIMIT 0,1`, it will work But if add `%df`: `?id=1%df'` --> PHP add backslash --> `SELECT * FROM users WHERE id='1%df\'' LIMIT 0,1` --> ( `\` : `%5c`, `%df%5c` : `連` ) --> `SELECT * FROM users WHERE id='1連'' LIMIT 0,1` --> can escape `'`.
Because that way can one escape `'`, So, it can be: `?id=1%df' and 1=1 --+` --> PHP add backslash--> `SELECT * FROM users WHERE id='1連' and 1=1 --+' LIMIT 0,1`, it can be inject.
So, it can be: `?id=1%df' and 1=1 --+` --> `SELECT * FROM users WHERE id='1運\' and 1=1 --+ LIMIT 0,1`, it can be inject.
## MYSQL Current queries ## MYSQL Current queries