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Pentesting Methodology
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Pentesting Methodology
0- Physical Attacks
Do you have physical access to the machine that you want to attack? You should read some tricks about physical attacks and others about escaping from GUI applications.
1 - Discovering hosts inside the network / Discovering Assets of the company
Depending if the test you are perform is an internal or external test you may be interested on finding hosts inside the company network (internal test) or finding assets of the company on the internet (external test).
{% hint style="info" %} Note that if you are performing an external test, once you manage to obtain access to the internal network of the company you should re-start this guide. {% endhint %}
2- Having Fun with the network (Internal)
This section only applies if you are performing an internal test.
Before attacking a host maybe you prefer to steal some credentials from the network or sniff some data to learn passively/actively(MitM) what can you find inside the network. You can read Pentesting Network.
3- Port Scan - Service discovery
The first thing to do when looking for vulnerabilities in a host is to know which services are running in which ports. Let's see the basic tools to scan ports of hosts.
4- Searching service version exploits
Once you know which services are running, and maybe their version, you have to search for known vulnerabilities. Maybe you get lucky and there is a exploit to give you a shell...
5- Pentesting Services
If there isn't any fancy exploit for any running service, you should look for common misconfigurations in each service running.
Inside this book you will find a guide to pentest the most common services (and others that aren't so common). Please, search in the left index the PENTESTING section (the services are ordered by their default ports).
I want to make a special mention of the Pentesting Web part (as it is the most extensive one).
Also, a small guide on how to find known vulnerabilities in software can be found here.
If your service is not inside the index, search in Google for other tutorials and let me know if you want me to add it. If you can't find anything in Google, perform your own blind pentesting, you could start by connecting to the service, fuzzing it and reading the responses (if any).
5.1 Automatic Tools
There are also several tools that can perform automatic vulnerabilities assessments. I would recommend you to try Legion, which is the tool that I have created and it's based on the notes about pentesting services that you can find in this book.
5.2 Brute-Forcing services
In some scenarios a Brute-Force could be useful to compromise a service. Find here a CheatSheet of different services brute forcing.
6- Phishing
If at this point you haven't found any interesting vulnerability you may need to try some phishing in order to get inside the network. You can read my phishing methodology here:
7- Getting Shell
Somehow you should have found some way to execute code in the victim. Then, a list of possible tools inside the system that you can use to get a reverse shell would be very useful.
Specially in Windows you could need some help to avoid antiviruses: [Check this page](windows/av-bypass.md).
8- Inside
If you have troubles with the shell, you can find here a small compilation of the most useful commands for pentesters:
9 - Exfiltration
You will probably need to extract some data from the victim or even introduce something (like privilege escalation scripts). Here you have a post about common tools that you can use with these purposes.
10- Privilege Escalation
10.1- Local Privesc
If you are not root/Administrator inside the box, you should find a way to escalate privileges.
Here you can find a guide to escalate privileges locally in Linux and in Windows.
You should also check this pages about how does Windows work:
- Authentication, Credentials, Token privileges and UAC
- How does NTLM works
- How to steal credentials in Windows
- Some tricks about Active Directory
Don't forget to checkout the best tools to enumerate Windows and Linux local Privilege Escalation paths: Suite PEAS
10.2- Domain Privesc
Here you can find a methodology explaining the most common actions to enumerate, escalate privileges and persist on an Active Directory. Even if this is just a subsection of a section, this process could be extremely delicate on a Pentesting/Red Team assignment.
11 - POST
11.1 - Looting
Check if you can find more passwords inside the host or if you have access to other machines with the privileges of your user.
Find here different ways to dump passwords in Windows.
11.2 - Persistence
Use 2 o 3 different types of persistence mechanism so you won't need to exploit the system again.
Here you can find some persistence tricks on active directory.
TODO: Complete persistence Post in Windows & Linux
12 - Pivoting
With the gathered credentials you could have access to other machines, or maybe you need to discover and scan new hosts (start the Pentesting Methodology again) inside new networks where your victim is connected.
In this case tunnelling could be necessary. Here you can find a post talking about tunnelling.
You definitely should also check the post about Active Directory pentesting Methodology. There you will find cool tricks to move laterally, escalate privileges and dump credentials.
Check also the page about NTLM, it could be very useful to pivot on Windows environments..
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Support HackTricks and get benefits!
Do you work in a cybersecurity company? Do you want to see your company advertised in HackTricks? or do you want to have access the latest version of the PEASS or download HackTricks in PDF? Check the SUBSCRIPTION PLANS!
Discover The PEASS Family, our collection of exclusive NFTs
Get the official PEASS & HackTricks swag
Join the 💬 Discord group or the telegram group or follow me on Twitter 🐦@carlospolopm.
Share your hacking tricks submitting PRs to the hacktricks github repo.