7MS #506: Tales of Pentest Pwnage - Part 32
7 Minute Security3 Helmi 2022

7MS #506: Tales of Pentest Pwnage - Part 32

Today's my favorite tale of pentest pwnage (again)! This time we're talking about sAMAccountName spoofing specifically. We also talk about my always-under-construction list of things I try early in a pentest for maximum pwnage:
  • Run PingCastle
  • Do the SharpHound/BloodHound dumps
  • Run the DHCP poisoning module of Responder
  • Check the ms-DS-MachineAccountQuota value in the domain - if its at the default (10), then any user can add machines to the domain.
Why is the ability to add machines to the domain important? Because in the case of the sAMAccountName spoofing, if you have a non-domain-joined machine like I do, you need the ability to add a computer object to the domain. Check the Pentestlab.blog article for more info, but essentially, if you have an unpatched domain controller and the ability to add computer objects to the domain, you can pull off the attack. The article goes into crazy good technical detail, and here's my not-so-technical explanation:

If I was on a pentest, and the DC was called 7MS-DC01, and I could join a machine to the domain (which as a reminder - ANY user can do if the machine quota value is at the default value of 10), I could rename that machine account to be 7MS-DC01 without the dollar sign, request a TGT for the domain controller's account, then restore the machine name back to what it was before. Now, because the TGT is stored in memory, we can use the S4U2self Kerberos extension to request a service ticket using a domain admin account. And because the original ticket belong to the 7MS-DC01 machine name which now doesn't exist, Kerberos will look for 7MS-DC01$ and will issue the ticket for the requested service.

I might've butchered that explanation mom, but I tried my best!

TLDL/TLDR: find and exploit these unpatched domain controllers with noPac. Enjoy!

Jaksot(695)

7MS #86: OSWP-The Final Chapter!

7MS #86: OSWP-The Final Chapter!

This episode concludes the gripping, thrilling, exciting, awesome-ing, death-defying, unsettling, rattling series on OSWP (Offensive Security Wireless Professional). Specifically, I talk (as much as I can without getting into trouble) about the exam and give you some pointers to pass it!

18 Elo 20157min

7MS #85: What is The Penetration Testers Framework (PTF)?

7MS #85: What is The Penetration Testers Framework (PTF)?

Need an easy way to create a modular/mobile kit of pentest tools to take with you from machine to machine? And ALSO be able to update all those modules in one command? Then check out the PTF! That's what we're talkin' about on today's podcast.

14 Elo 20157min

7MS #84: DIY Pwn Pad

7MS #84: DIY Pwn Pad

Hey have you heard of Pwn Pads? They're an awesome network pentesting tool that leverages a Nexus tablet - which you can either buy right from Pwnie Express, or create your own if you have a certain model of Nexus lying around. I just happened to have the right Nexus model around, so this podcast episode chronicles my trial and error (mostly error) in making a DIY Pwn Pad! P.S. to get the Android tools installed on Ubuntu 14.04, run these commands: -- sudo add-apt-repository ppa:nilarimogard/webupd8 sudo apt-get update sudo apt-get install android-tools-adb android-tools-fastboot --

12 Elo 20157min

7MS #83: Wifi Pineapple First Impressions

7MS #83: Wifi Pineapple First Impressions

in this episode I talk about my first hands-on experience with a Wifi Pineapple, and why you'll probably want one too.

6 Elo 20158min

7MS #82: OSWP-Part 3

7MS #82: OSWP-Part 3

The OSWP series is coming to a close. One final episode today and then the four-quel episode will be all about the test!

4 Elo 20157min

7MS #81: OSWP-Part 2

7MS #81: OSWP-Part 2

A continuation of our thrilling, exciting, mind-blowing series on OSWP (Offensive Security Wireless Professional)!

30 Heinä 20158min

7MS #80: OSWP-Part 1

7MS #80: OSWP-Part 1

This episode kicks off a multi-part series all about the OSWP (Offensive Security Wireless Professional) certification.

28 Heinä 20157min

7MS #79.5: UPDATE(!) on My Love-Hate Relationship with Nessus

7MS #79.5: UPDATE(!) on My Love-Hate Relationship with Nessus

In episode #79 I shared some gripes about Nessus. Those gripes were quickly answered by Tenable staff/support so I wanted to pass relevant updates on to you!

27 Heinä 20156min

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