实训靶机-1
实训期间先搞开发再搞了渗透,现在开始渗透阶段了
信息收集
端口扫描
发现三个端口,暴露了web服务
用dirsearch进行扫描,发现有vendor目录,里面可能有composer生成的铭感信息
发现配置错误,正好能访问对应文件
获得web目录绝对路径
PHPmailer版本
5.2.16
存在漏洞利用点
kali里面发现漏洞利用点
存在wordpress站点
首页点击BLOG跳转到wordpress页面
wpscan尝试扫描漏洞
发现两个用户steven与michael
尝试爆破ssh密码
收集到的两个用户进行利用
1 | hydra -L user.txt -P /usr/share/wordlists/rockyou.txt -F -V 192.168.10.131 ssh |
成功得到michael的密码Michael
尝试ssh远程登录
mysql
查看mysql是否运行
获取mysql密码
在wordpress目录下wp-config.php获得了root用户的密码
1 | /** MySQL database username */ |
登陆mysql
查看数据库
show database
查看wordpress当中的表
查看数据库用户并破解密码
$P$BqfBDRL7nB8b5G0aPRMiL.iSsn5YD00去somd5查询后得到steven密码pink84
ssh登陆steven用户并获取交互式shell
1 | python -c 'import pty;pty.spawn("/bin/bash")' |
sudo -l通过特权指令提权
提权
第二种方式:phpmailer获取web权限
这里用python脚本提权
这里对其修改改为一个php后门,方便后渗透
之后利用这个backdoor.php,获取虚拟终端,发现mysql为root用户运行,如果能通过mysql提权限那么就会获得root用户权限
UDF提权
在蚁剑使用mysql连接插件
mysql查询系统相关信息
得到mysql版本
获取到系统为64位系统
查看写入权限反正是root,就算无也可以改,发现可以写
1 | show global variables like '%secure%'; |
查看mysql插件目录地址
udf一把梭哈
1 | SELECT 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INTO DUMPFILE '/usr/lib/mysql/plugin/udf_y4.so'; |
之后创建一个用户自定义函数即可
1 | CREATE FUNCTION sys_eval RETURNS STRING SONAME 'udf_y4.so'; |
成功获得root权限
flag
flag1{b9bbcb33e11b80be759c4e844862482d} 首页service.html
flag2{fc3fd58dcdad9ab23faca6e9a36e581c} /var/www/flag2.txt
flag3{afc01ab56b50591e7dccf93122770cd2} 数据库
flag4{715dea6c055b9fe3337544932f2941ce} /root/flag4.txt