mirror of
https://github.com/AbdullahRizwan101/CTF-Writeups
synced 2024-11-22 12:03:03 +00:00
94 lines
3.3 KiB
Markdown
94 lines
3.3 KiB
Markdown
# TryHackMe-BountyHackerCTF
|
|
Abdullah Rizwan , Friday 28 August , 05:34 PM
|
|
|
|
## NMAP
|
|
|
|
```
|
|
nmap -sC -sV 10.10.187.202
|
|
```
|
|
|
|
```
|
|
st is up (0.16s latency).
|
|
Not shown: 967 filtered ports, 30 closed ports
|
|
PORT STATE SERVICE VERSION
|
|
21/tcp open ftp vsftpd 3.0.3
|
|
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
|
|
|_Can't get directory listing: TIMEOUT
|
|
| ftp-syst:
|
|
| STAT:
|
|
| FTP server status:
|
|
| Connected to ::ffff:10.8.94.60
|
|
| Logged in as ftp
|
|
| TYPE: ASCII
|
|
| No session bandwidth limit
|
|
| Session timeout in seconds is 300
|
|
| Control connection is plain text
|
|
| Data connections will be plain text
|
|
| At session startup, client count was 2
|
|
| vsFTPd 3.0.3 - secure, fast, stable
|
|
|_End of status
|
|
22/tcp open ssh OpenSSH 7.2p2 Ubuntu 4ubuntu2.8 (Ubuntu Linux; protocol 2.0)
|
|
| ssh-hostkey:
|
|
| 2048 dc:f8:df:a7:a6:00:6d:18:b0:70:2b:a5:aa:a6:14:3e (RSA)
|
|
| 256 ec:c0:f2:d9:1e:6f:48:7d:38:9a:e3:bb:08:c4:0c:c9 (ECDSA)
|
|
|_ 256 a4:1a:15:a5:d4:b1:cf:8f:16:50:3a:7d:d0:d8:13:c2 (ED25519)
|
|
80/tcp open http Apache httpd 2.4.18 ((Ubuntu))
|
|
|_http-server-header: Apache/2.4.18 (Ubuntu)
|
|
|_http-title: Site doesn't have a title (text/html).
|
|
Service Info: OSs: Unix, Linux; CPE: cpe:/o:linux:linux_kernelp
|
|
|
|
```
|
|
|
|
## PORT 80
|
|
|
|
<a href="https://imgur.com/yWhYYLR"><img src="https://i.imgur.com/yWhYYLR.png" title="source: imgur.com" /></a>
|
|
|
|
|
|
## Dirbuster
|
|
|
|
<a href="https://imgur.com/1tJ2fbA"><img src="https://i.imgur.com/1tJ2fbA.png" title="source: imgur.com" /></a>
|
|
|
|
<a href="https://imgur.com/bsZXqQt"><img src="https://i.imgur.com/bsZXqQt.png" title="source: imgur.com" /></a>
|
|
|
|
Since we have access to ftp through "anonymous" login we can upload a php reverse shell.
|
|
|
|
## PORT 21
|
|
|
|
<a href="https://imgur.com/Yzi3RVj"><img src="https://i.imgur.com/Yzi3RVj.png" title="source: imgur.com" /></a>
|
|
|
|
<a href="https://imgur.com/2PEM3XF"><img src="https://i.imgur.com/2PEM3XF.png" title="source: imgur.com" /></a>
|
|
|
|
|
|
We can grab the task.txt through "get" command.
|
|
|
|
<a href="https://imgur.com/cXcctEl"><img src="https://i.imgur.com/cXcctEl.png" title="source: imgur.com" /></a>
|
|
|
|
We also found a list of passwords so that we can use it in brute forcing.
|
|
|
|
<a href="https://imgur.com/EQI8x3Z"><img src="https://i.imgur.com/EQI8x3Z.png" title="source: imgur.com" /></a>
|
|
|
|
## PORT 22
|
|
|
|
By looking at the text file we can check if "lin" is a user on that box so we can bruteforce our way in through ssh by using hyrda.
|
|
|
|
```
|
|
hydra -l lin -P locks.txt ssh://$IP -t 4
|
|
```
|
|
$IP is nothing but a variable for bash environment , export IP=10.10.187.202.
|
|
|
|
|
|
<a href="https://imgur.com/1q78mpp"><img src="https://i.imgur.com/1q78mpp.png" title="source: imgur.com" /></a>
|
|
|
|
We found the password for "lin".
|
|
|
|
<a href="https://imgur.com/8XILjSX"><img src="https://i.imgur.com/8XILjSX.png" title="source: imgur.com" /></a>
|
|
|
|
<a href="https://imgur.com/M4DQ6cV"><img src="https://i.imgur.com/M4DQ6cV.png" title="source: imgur.com" /></a>
|
|
|
|
We can root the box through "/bin/tar" we can find exploit to it by visiting GTFOBINS.
|
|
|
|
<a href="https://imgur.com/c8r4CsV"><img src="https://i.imgur.com/c8r4CsV.png" title="source: imgur.com" /></a>
|
|
|
|
<a href="https://imgur.com/wsGPsPb"><img src="https://i.imgur.com/wsGPsPb.png" title="source: imgur.com" /></a>
|
|
|
|
We are now root and we can read that root.txt flag in order to complete the CTF.
|