7MS #640: Tales of Pentest Pwnage – Part 63

7MS #640: Tales of Pentest Pwnage – Part 63

This was my favorite pentest tale of pwnage to date! There’s a lot to cover in this episode so I’m going to try and bullet out the TLDR version here:

  • Sprinkled farmer files around the environment
  • Found high-priv boxes with WebClient enabled
  • Added “ghost” machine to the Active Directory (we’ll call it GHOSTY)
  • RBCD attack to be able to impersonate a domain admin using the CIFS/SMB service against the victim system where some higher-priv users were sitting
  • Use net.py to add myself to local admin on the victim host
  • Find a vulnerable service to hijack and have run an evil, TGT-gathering Rubeus.exe – found that Credential Guard was cramping my style!
  • Pulled the TGT from a host not protected with Credential Guard
  • Figured out the stolen user’s account has some “write” privileges to a domain controller
  • Use rbcd.py to delegate from GHOSTY and to the domain controller
  • Request a TGT for GHOSTY
  • Use getST.py to impersonate CIFS using a domain admin account on the domain controller (important thing here was to specify the DC by its FQDN, not just hostname)
  • Final move: use the domain admin ccache file to leverage net.py and add myself to the Active Directory Administrators group

Jaksot(681)

7MS #57: How to Review a Firewall (audio)

7MS #57: How to Review a Firewall (audio)

In this episode I talk about a few different ways to approach firewall reviews/audits. This document was very helpful in getting my template started. Also check out Nipper if you’re looking for a firewall review/audit tool. 7MS #57: How to Review a Firewall (audio)

30 Huhti 20158min

7MS #56: OFFTOPIC – Catching Up and Blowing Noses (audio)

7MS #56: OFFTOPIC – Catching Up and Blowing Noses (audio)

A few offtopic things: What you can expect as far as a podcast release schedule going forward Two suspicious charges that showed up on my credit card while out of town! 7MS #56: OFFTOPIC – Catching Up and Blowing Noses (audio)

28 Huhti 20158min

7MS #55: OFFTOPIC – What’s in Brian’s Murse? (video)

7MS #55: OFFTOPIC – What’s in Brian’s Murse? (video)

Ok I don’t really have a murse, but I wanted to do a short video(!) podcast to show you some sorta-security-related gadgets that I’ve been nerding out on the last few weeks. 7MS #55: OFFTOPIC – What’s in Brian’s Murse? (video)

22 Huhti 20156min

7MS #54: Traveling with a Red Giant (audio)

7MS #54: Traveling with a Red Giant (audio)

If you’re concerned about your credit/debit card security, you might want to give Red Giant a try. It’s a service that provides a debit card you can unlock *only* when buying something. It’s cool. Oh, and Red Giant is NOT sponsoring this episode. If I ever get sponsors, I’ll disclose them clearly. :-) 7MS #54:…

16 Huhti 20157min

7MS #53: Are You Ready to Get Robbed? (audio)

7MS #53: Are You Ready to Get Robbed? (audio)

Business DR plans are a hugely important – and often overlooked – piece of the infosec puzzle. But what about at home? If you got run over by a bus tomorrow, would you have good plans in place to help your partner/spouse take over the tech side of your household? That’s what we’re talkin’ about…

14 Huhti 20157min

7MS #52: OFFTOPIC – My Son is Really Loyal (audio)

7MS #52: OFFTOPIC – My Son is Really Loyal (audio)

It’s another off-topic episode today. This one’s about how my eight-year-old son is fiercely loyal, and wants to settle a 25-year-old score for me. 7MS #52: OFFTOPIC – My Son is Really Loyal (audio)

9 Huhti 20158min

7MS #51: CEH vs. OSCP (audio)

7MS #51: CEH vs. OSCP (audio)

A few people have written in asking whether to pursue the CEH or OSCP (or both). This episode discusses my experience with each cert and hopefully points you in the right direction on which one might be right for you. Here’s the article on CEH I mention during the episode – it has much more…

7 Huhti 20157min

7MS #50: OSCP – The Final Chapter – part 2! (audio)

7MS #50: OSCP – The Final Chapter – part 2! (audio)

At last, the epic conclusion of the maddening, redeeming OSCP journey. 7MS #50: OSCP – The Final Chapter – part 2! (audio)

2 Huhti 20157min

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