Git Product home page Git Product logo

sudo_killer's Introduction

#sudo exploitation #Abusing sudo #Exploiting Sudo

If you like the project and for my personal motivation so as to develop other tools please a +1 star *

SUDO_KILLER

SUDO_KILLER is a tool which help to abuse SUDO in different ways and with the main objective of performing a privilege escalation on linux environment.

The tool helps to identify misconfiguration within sudo rules, vulnerability within the version of sudo being used (CVEs and vulns) and the used of dangerous binary, all of these could be abuse to elevate privilege to ROOT.

SUDO_KILLER will then provide a list of commands or local exploits which could be exploited to elevate privilege.

SUDO_KILLER does not perform any exploitation on your behalf, the exploitation will need to be performed manually and this is intended.

Default usage

Example: ./sudo_killer.sh -c -r report.txt -e /tmp/

Arguments

-k : Keywords
-e : export location (export /etc/sudoers)
-c : include CVE checks with respect to sudo version
-s : supply user password for sudo checks (not recommended ++except for CTF)
-r : report name (save the output)
-h : help

CVEs check

To update the CVE database : run the following script ./cve_update.sh

IMPORTANT !!!

If you need to input a password to run sudo -l then the script will not work if you don't provide a password with the argument -s.

**NOTE : sudo_killer does not exploit automatically by itself, it was designed like this on purpose but check for misconguration and vulnerabilities and then propose you the following (if you are lucky the route to root is near!) :

  • a list of commands to exploit
  • a list of exploits
  • some description on how and why the attack could be performed

Why is it possible to run "sudo -l" without a password?

By default, if the NOPASSWD tag is applied to any of the entries for a user on a host, he or she will be able to run "sudo -l" without a password. This behavior may be overridden via the verifypw and listpw options.

However, these rules only affect the current user, so if user impersonation is possible (using su) sudo -l should be launched from this user as well.

Sometimes the file /etc/sudoers can be read even if sudo -l is not accessible without password.

Testing the tool :)

To setup a vulnerable environment for your test you will need Docker installed, and just run the following command:

To pull from docker

service docker start
docker pull th3xace/sudo_killer_demo
docker run --rm -it th3xace/sudo_killer_demo

To build locally using the Dockerfile

service docker start
git clone https://github.com/TH3xACE/SUDO_KILLER.git
cd SUDO_KILLER
docker build -t th3xace/sudo_killer_demo .
docker run --rm -it th3xace/sudo_killer_demo

And it will spawn a interactive shell with low user privileges.

Credits

The script was written by myself but with the help of a lot of online ressources found on github and in the wild, I thanks those people who inspire me. The credits and the links are shown when their exploits/decriptions are used when running the script.

Special kudos to Vincent Puydoyeux :) who gave me the idea to develop this tool.

Disclaimer

This script is for Educational purpose ONLY. Do not use it without permission. The usual disclaimer applies, especially the fact that me (TH3xACE) 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 the script is not my responsibility.

sudo_killer's People

Contributors

th3xace avatar

Watchers

James Cloos avatar

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    ๐Ÿ–– Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. ๐Ÿ“Š๐Ÿ“ˆ๐ŸŽ‰

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google โค๏ธ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.