sql注入数据库修复的两种实例方法,数据库被注入解有效处理方法

 百家乐-数据     |      2020-03-31 11:35

declare @delStr nvarchar(500) set @delStr='script src=' --这里被注入的字段串 /****************************************/

1.第一种情况是 需要将指定的 注入字符串全部替换掉复制代码 代码如下:declare @delStr nvarchar(500) set @delStr='script src=//' --这里被注入的字段串 /****************************************/ /**********以下为操作实体************百家了乐八大技巧 ,/ 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 +']lom599乐百家手机 ,= 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 @iRow0 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 '数据库教程共有'+convert(varchar(10),@iResult)+'条记录被更新!!!' close cur deallocate cur set nocount off

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

2.第二种是 需要将注入到表中起始位置到最后都删掉。复制代码 代码如下:--恢复被注入数据库 --2013-09-26 declare @delStr nvarchar(500) set @delStr='/titlestyle.' --被注入的字段串的开始采样,从此位置后面的数据都为注入数据 /**********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) where ['+@columnName+'] like ''%'+@delStr+'%''' exec sp_executesql @sql set @iRow=@@rowcount set @iResult=@iResult+@iRow if @iRow0 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 '数据库教程共有'+convert(varchar(10),@iResult)+'条记录被更新!!!' close cur deallocate cur set nocount off

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