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 #33: ProXPN (audio)

7MS #33: ProXPN (audio)

This episode’s all about a cool product called ProXPN that I use to encrypt/anonymize my traffic for various reasons. Not a sponsored episode or anything like that, but I am a fan of this service :-). Download: 7MS #33: ProXPN (audio)

7 Marras 20147min

7MS #32: OSCP – part 3 (audio)

7MS #32: OSCP – part 3 (audio)

Been a while since I shared an update on OSCP progress. It’s going good but…slow. However, I do have one (maybe obvious) tip to share that I hope will save you a ton of time. Download: 7MS #32: OSCP – part 3 (audio)

1 Marras 20147min

7MS #31: Network Detective (audio)

7MS #31: Network Detective (audio)

Network Detective is a tool we’ve been using as kind of an addendum to our full security assessment. It gives some nice, plain-English Excel spreadsheets and Word docs that report on AD health and structure, PC inventory and open ports, AV clients that aren’t working right, and a whole lot more. Download: 7MS #31: Network Detective…

25 Loka 20147min

7MS #30: Managing Privileged Accounts (audio)

7MS #30: Managing Privileged Accounts (audio)

Most organizations I talk to have no idea where their privileged accounts are used across the network. I recently saw a demo of a solution called CyberArk, which seems to address that problem. Download: 7MS #30: Managing Privileged Accounts (audio)

18 Loka 20147min

7MS #29: Follow Up Then (audio)

7MS #29: Follow Up Then (audio)

This isn’t necessarily related to security, but it’s about one of my favorite tools to keep my todos organized: FollowUp Then! Download: 7MS #29: Follow Up Then (audio)

11 Loka 20147min

7MS #28: Infosec for Kids? (audio)

7MS #28: Infosec for Kids? (audio)

This is more of a random, wondering aloud type of episode as I think about raising my kids with infosec in mind. Specifically, what’s life going to be like for them growing up in an Internet-soaked world where there are constantly text/video/photos of them going online – to stay forever? Download: 7MS #28: Infosec for Kids?…

27 Syys 20147min

7MS #27: Backing Up with CrashPlan (audio)

7MS #27: Backing Up with CrashPlan (audio)

Hey, when it comes to backups…uh…you should have them! This is a NON-endorsed/sponsored episode about my personal favorite backup service called CrashPlan. Download: 7MS #27: Backing Up with Crashplan (audio)

20 Syys 20147min

7MS #26: The Importance of Training and Awareness (audio)

7MS #26: The Importance of Training and Awareness (audio)

Training and awareness – specifically as it relates to infosec – is something companies can’t spend enough $ on. But from my experience, not enough of them are making this a front-burner priority. This episode talks about one topic I’m particularly passionate about. I call it “How not to click on bad stuff.” Download: 7MS #26:…

13 Syys 20147min

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