sqlserver数据库危险扩展删除和恢复代码
今天为了实现sqlserver的复制功能,因为以前删除了很多的sqlserver的一些会导致不安全因素的扩展,导致很多功能无法用,没有办法需要重新的恢复扩展。
曾经遇过,差点抓狂,有装MSSQL的朋友,赶紧试一下,删除以下的组件.当然,前提是你要把自己的数据库搞定后再去删除,否则组件删除后很多功能不能用,为了安全,就得牺牲某些功能,当然,像我这类的,我除了把MSSQL导入后,基本上一年用不到两次,所以,我是会毫不犹豫地删除,嘿.一, 将有安全问题的SQL过程删除.比较全面.一切为了安全!
删除了调用shell,,COM组件的破坏权限
MS SQL SERVER2000
使用系统帐户登陆查询分析器
运行以下脚本
代码如下:
use master
exec sp_dropextendedproc 'xp_cmdshell'
exec sp_dropextendedproc 'xp_enumgroups'
exec sp_dropextendedproc 'xp_loginconfig'
exec sp_dropextendedproc 'xp_enumerrorlogs'
exec sp_dropextendedproc 'xp_getfiledetails'
exec sp_dropextendedproc 'Sp_OACreate'
exec sp_dropextendedproc 'Sp_OADestroy'
exec sp_dropextendedproc 'Sp_OAGetErrorInfo'
exec sp_dropextendedproc 'Sp_OAGetProperty'
exec sp_dropextendedproc 'Sp_OAMethod'
exec sp_dropextendedproc 'Sp_OASetProperty'
exec sp_dropextendedproc 'Sp_OAStop'
exec sp_dropextendedproc 'xp_regaddmultistring'
exec sp_dropextendedproc 'xp_regdeletekey'
exec sp_dropextendedproc 'xp_regdeletevalue'
exec sp_dropextendedproc 'xp_regenumvalues'
exec sp_dropextendedproc 'xp_regremovemultistring'
exec sp_dropextendedproc 'xp_regwrite'
drop procedure sp_makewebtask
go
删除所有危险的扩展.
exec sp_dropextendedproc 'xp_cmdshell' [删除此项扩展后,将无法远程连接数据库]
以下3个存储过程会在SQL SERVER恢复备份时被使用,非必要请勿删除
#exec sp_dropextendedproc 'xp_dirtree' [删除此项扩展后,将无法新建或附加数据库]
#exec sp_dropextendedproc 'Xp_regread' [删除此项扩展后, 还原数据库辅助]
#exec sp_dropextendedproc 'xp_fixeddrives' [删除此项扩展后,将无法还原数据库]
恢复脚本
代码如下:
use master
EXEC sp_addextendedproc xp_cmdshell ,@dllname ='xplog70.dll'
EXEC sp_addextendedproc xp_enumgroups ,@dllname ='xplog70.dll'
EXEC sp_addextendedproc xp_loginconfig ,@dllname ='xplog70.dll'
EXEC sp_addextendedproc xp_enumerrorlogs ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_getfiledetails ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc Sp_OACreate ,@dllname ='odsole70.dll'
EXEC sp_addextendedproc Sp_OADestroy ,@dllname ='odsole70.dll'
EXEC sp_addextendedproc Sp_OAGetErrorInfo ,@dllname ='odsole70.dll'
EXEC sp_addextendedproc Sp_OAGetProperty ,@dllname ='odsole70.dll'
EXEC sp_addextendedproc Sp_OAMethod ,@dllname ='odsole70.dll'
EXEC sp_addextendedproc Sp_OASetProperty ,@dllname ='odsole70.dll'
EXEC sp_addextendedproc Sp_OAStop ,@dllname ='odsole70.dll'
EXEC sp_addextendedproc xp_regaddmultistring ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_regdeletekey ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_regdeletevalue ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_regenumvalues ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_regremovemultistring ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_regwrite ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_dirtree ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_regread ,@dllname ='xpstar.dll'
EXEC sp_addextendedproc xp_fixeddrives ,@dllname ='xpstar.dll'
go
全部复制到"SQL查询分析器"
点击菜单上的--"查询"--"执行",就会将有安全问题的SQL过程删除
二,SQL server 2000漏洞一直很多
前段时间我自己的服务器就出现了一个sql的临时储存过程漏洞
漏洞扩展:xp_dirtree储存过程
事前:最近发现一个漏洞是sql服务器造成的
前几天正好没有什么事情,就用阿d的sql注入工具对自己服务器的网站进行注入,偶然发现了使用mssql的网站浸染可以利用sql注入的形式得到整个服务器上所有目录(我的服务器作了的)依然可以看见,然后在服务器上安装了一个抓包工具对sql server进行抓包发现,使用工具连接sql漏洞xp_dirtree读取目录,可获得整个服务器目录,如列出c盘目录他会把你c盘下的所有目录列出来,这样是很不安全的,目前是只可以查处目录上穿东西,大家可以设想一下,如果我随意修改一个boot.ini覆盖了c盘的boot.ini是一个什么概念,呵呵首先可以导致服务其瘫痪,无法读取系统
解决方案:删除xp_dirtree,命令是sp_dropextendedproc 'xp_dirtree'
删除了以上的那个组建您在使用阿d或者任何的sql注入工具都是白搭
在这里也给大家提供一些其他sql危险的储存过程
建议删除
[注意:所有删除sql储存过程的操作必须在mssql查询分析器里操作,下面哪些前面的是储存过程的名字后面是删除储存过程的命令]
先来列出危险的内置存储过程:
ActiveX脚本:

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