sqlserver 数据库被注入解决方案

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我是靠谱客的博主斯文乌龟，最近开发中收集的这篇文章主要介绍sqlserver 数据库被注入解决方案，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

复制代码代码如下:

 
declare @delStr nvarchar(500) 
set @delStr='<script src=http://www.kansm.com/js/common.js></script>' --这里被注入的字段串 
/****************************************/ 

/**********以下为操作实体************/ 
set nocount on 

declare @tableName nvarchar(100),@columnName nvarchar(100),@tbID int,@iRow int,@iResult int 
declare @sql nvarchar(2000) 

set @iResult=0 
declare cur cursor for 
select name,id from sysobjects where xtype='U' 

open cur 
fetch next from cur into @tableName,@tbID 

while @@fetch_status=0 
begin 
declare cur1 cursor for 
select name from syscolumns where xtype in (231,167,239,175, 35, 99) and id=@tbID 
open cur1 
fetch next from cur1 into @columnName 
while @@fetch_status=0 
begin 
set @sql='update [' + @tableName + '] set ['+ @columnName +']= SUBSTRING([' + @columnName + '],' + '1, PATINDEX( ''%' + @delStr + '%'', [' + @columnName + '])-1) + ' + 'SUBSTRING([' + @columnName + '], PATINDEX( ''%' + @delStr + '%'', [' + @columnName + ']) + ' + 'len(''' + @delStr + ''') , datalength([' + @columnName + '])) where ['+@columnName+'] like ''%'+@delStr+'%''' 

exec sp_executesql @sql 
set @iRow=@@rowcount 
set @iResult=@iResult+@iRow 
if @iRow>0 
begin 
print '表：'+@tableName+',列:'+@columnName+'被更新'+convert(varchar(10),@iRow)+'条记录;' 
end 
fetch next from cur1 into @columnName 


end 
close cur1 
deallocate cur1 

fetch next from cur into @tableName,@tbID 
end 
print '数据库共有'+convert(varchar(10),@iResult)+'条记录被更新!!!' 

close cur 
deallocate cur 
set nocount off 