7MS #532: Tales of Pentest Pwnage - Part 39

7MS #532: Tales of Pentest Pwnage - Part 39

Hey friends, wow...we're up to thirty-nine episodes of pwnage? Should we make a cake when we hit the big 4-0?! Anyway, today's TLDL is this:

If you get a nagging suspicion about something you find during enumeration, make sure to either come back to it later, or exhaust the path right away so you don't miss something! Because I did :-/

A tip that's been helping me speed along my use of CrackMapExec and other tools is by using Kerberos authentication. You can grab a ticket for your test AD account by using Impacket like so:

gettgt.py victim.domain/LowPrivUser export KRB5CCNAME=LowPrivUser.ccache

Then in most tools you can pass the cred by doing something like:

crackmapexec smb DC01 -k

In my enumeration of this network, I used Certipy to find potential attack paths against Active Directory Certificate Services. Something cool I learned is that Certipy will spit out both a text and json dump so you can import into BloodHound and then pair that data with their custom queries json file for beautiful visual potential pwnage!

I ran into an issue where my certificate shenanigans resulted in an KDC_ERR_PADATA_TYPE_NOSUPP. I originally gave up on this attack path, only to learn about this awesome PassTheCert tool from this rad blog post! After initially being hesitant to use a tool I'd never heard of, I raised a GitHub issue to calm my nerves and, shortly after, found myself doing a domain admin dance.

Oh, and although I didn't use it on this specific pentest, coercer is an awesome tool that helps you, ya know, coerce things!

Avsnitt(704)

7MS #151: Friday Infosec News and Links Roundup

7MS #151: Friday Infosec News and Links Roundup

Here are some of my favorite stories and links for this week! Training opportunities NMAP course from Udemy - $24 for a limited time (I think) How to handle the the thoughtless compliance zombie hordes - by BHIS is coming up Tuesday February 16th from 2-3 ET. The price is free! Pivot Project touts itself as "a portfolio of interesting, practical, enlightening, and often challenging hands-on exercises for people who are trying to improve their mastery of important cybersecurity skills. News It is absurdly easy for attackers to destroy your Web site in 10 minutes. Secure your home network better using advice from the SANS Ouch! newsletter. Chromodo (part of Comodo's Internet Security)disables same-origin policy which basically disables Web security. Wha?! Virus total now looks at firmware images as well. We can soon wave goodbye to Java in the browser forever!. Kinda. Tools Here's a nice SSL/TLS-checking checklist for pentesters. Kali is moving to a rolling release configuration pretty soon. Update yours before April 15!

5 Feb 201611min

7MS #150: OFF-TOPIC-Bone Tomahawk / Goodnight Mommy / Comedy Loves Misery

7MS #150: OFF-TOPIC-Bone Tomahawk / Goodnight Mommy / Comedy Loves Misery

Preview16 wordsIn today's off-topic episode I review the following movies: Bone Tomahawk Goodnight Mommy Misery Loves Comedy

3 Feb 201610min

7MS #149: Securing Your Life - Part 3

7MS #149: Securing Your Life - Part 3

This episode continues the series on securing your life - making sure all the security stuff related to your life is in order. Today we're particularly focusing on preparing to travel. What if (God forbid) the plane goes down? Who has access to your money, passwords, etc.?

1 Feb 20168min

7MS #148: OFF-TOPIC - Apple Watch Review

7MS #148: OFF-TOPIC - Apple Watch Review

Yep, there are tons of people/blogs/magazines/children/pets who have provided reviews of the Apple Watch. This is mine.

28 Jan 20169min

7MS #147: DIY Hosted Mutillidae

7MS #147: DIY Hosted Mutillidae

In this episode I talk about how to build a cheap hosted Mutillidae server to safely hack away on while keeping other Internet prowlers out. Here are the basic commands to run to lock down the Digital Ocean droplet's iptables firewall: *Flush existing rules* **sudo iptables -F** *Allow all concurrent connections* **sudo iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT** *Allow specific IPs/hosts to access port 80* **sudo iptables -A INPUT -p tcp -s F.Q.D.N --dport 80 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT** *Allow specific IPs/hosts to access port 22* **sudo iptables -A INPUT -p tcp -s F.Q.D.N --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT** *Block all other traffic:* **sudo iptables -P INPUT DROP** *Provide the VPS loopback access:* **sudo iptables -I INPUT 1 -i lo -j ACCEPT** *Install iptables-persistent to ensure rules survive a reboot:* **sudo apt-get install iptables-persistent** *Start iptables-persistent service* **sudo service iptables-persistent start** *If you make iptables changes after this and they don't seem to stick, do this:* **sudo iptables-save > /etc/iptables/rules.v4** See this Digital Ocean article for more information.

26 Jan 20168min

7MS #146: Friday Infosec News and Links Roundup

7MS #146: Friday Infosec News and Links Roundup

Here are some of my favorite stories and links for this week! If you missed last week's BURN IT ALL! Webcast, it's now online as a Youtube video. There is still time to register for the Real World Web Penetration Testing Webinar. It's(Thursday, January 28 @ 1 p.m. CST) and $25 (cheap!) Trustwave is in big trouble after failing to find hackers under their noses. Their noses mustreally hurt because Mandiant was quick to point out the work done by Trustwave was "woefully inadequate." I'm scared of IoT stuff. Why? Oh, I don't know, because what happens when your Nest fails and leaves your buttcheeks freezing cold?!?!? Or what if hackers steal your doorbell, and thus your wifi password and pwn your network? Thankfully, OWASP now now has a top 10 for IoT stuff too. A researcher found some clever ways to abuse Lastpass with an exploit called Lostpass. Lastpassresponded with a security change wherein a Lastpass authentication from a new device requires approval via email. A new Sysinternals tool helps figure out if you have shady, unsigned files in c:\windows\system32. Oh, and for sure upgrade all your iThings ASAP. Apple patched some ugly security holes.

23 Jan 201610min

7MS #145: OFF-TOPIC - Sicario and The Walk

7MS #145: OFF-TOPIC - Sicario and The Walk

In today's off-topic episode I review two movies: Sicario and The Walk.

21 Jan 20167min

7MS #144: Shoulder-Surfing with Seasoned Pentesters

7MS #144: Shoulder-Surfing with Seasoned Pentesters

I recently had the opportunity to shoulder-surf with some seasoned Webapp pentesters, and wanted to share what I learned about their tools, techniques and methodologies.

18 Jan 20167min

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