Mirrors/CTF-Writeups
2
0
Fork 0
mirror of https://github.com/AbdullahRizwan101/CTF-Writeups synced 2024-11-21 19:43:03 +00:00
Code Issues Projects Releases Packages Wiki Activity

Add files via upload

Browse source
This commit is contained in:
AbdullahRizwan101 2020-08-28 18:20:40 +05:00 committed by GitHub
parent 9a06b68093
commit b757011132
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 94 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

94
TryHackMe/bounty_hackerCTF.md Normal file
View file

@ -0,0 +1,94 @@
# 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.