7MS #432: Tales of Internal Network Pentest Pwnage - Part 21
7 Minute Security16 Syys 2020

7MS #432: Tales of Internal Network Pentest Pwnage - Part 21

Yay! It's time for another tale of pentest pwnage! Highlights include:

  • Making sure you take multiple rounds of "dumps" to get all the delicious local admin creds.

  • Why lsassy is my new best friend.

  • I gave a try to using a Ubuntu box instead of Kali as my attacking system for this test. I had pretty good results. Here's my script to quickly give Ubuntu a Kali-like flair:

sudo apt-get update sudo apt-get upgrade -y sudo apt-get install openssh-server -y sudo apt-get install nmap curl dnsrecon git net-tools open-vm-tools-desktop python3.8 python3-pip unzip wget xsltproc -y #Aha helps take output from testssl.sh and make it nice and HTML-y sudo git clone https://github.com/theZiz/aha.git /opt/aha #Awesome-nmap-grep makes it easy to grep nmap exports for just the data you need! sudo git clone https://github.com/leonjza/awesome-nmap-grep.git /opt/awesome-nmap-grep #bpatty is...well...bpatty! sudo git clone https://github.com/braimee/bpatty.git /opt/bpatty #CrackMapExec is...awesome sudo mkdir /opt/cme cd /opt/cme sudo curl https://github.com/byt3bl33d3r/CrackMapExec/releases/download/v5.1.0dev/cme-ubuntu-latest.1.zip -L -o cme.zip sudo unzip cme.zip sudo chmod +x ./cme #eyewitness is a nice recon tool for putting some great visualization behind nmap scans sudo git clone https://github.com/FortyNorthSecurity/EyeWitness.git /opt/eyewitness cd /opt/eyewitness/Python/setup sudo ./setup.sh #impacket is "a collection of Python classes for working with network protocols" #I currently primarily use it for ntlmrelayx.py sudo git clone https://github.com/CoreSecurity/impacket.git /opt/impacket cd /opt/impacket sudo pip3 install . #mitm6 is a way to tinker with ip6 and get around some ip4-level protections sudo git clone https://github.com/fox-it/mitm6.git /opt/mitm6 cd /opt/mitm6 sudo pip3 install -r requirements.txt # install service-identity sudo pip3 install service-identity # lsassy sudo python3 -m pip install lsassy #nmap-bootstrap-xsl turns nmap scan output into pretty HTML sudo git clone https://github.com/honze-net/nmap-bootstrap-xsl.git /opt/nmap-bootstrap-xsl #netcreds "Sniffs sensitive data from interface or pcap" sudo git clone https://github.com/DanMcInerney/net-creds /opt/netcreds #PCCredz parses pcaps for sensitive data sudo git clone https://github.com/lgandx/PCredz /opt/pcredz #Powersploit is "a collection of Microsoft PowerShell modules that can be used to aid penetration testers during all phases of an assessment" sudo git clone https://github.com/PowerShellMafia/PowerSploit.git /opt/powersploit #PowerupSQL is a tool for discovering, enumerating and potentially pwning SQL servers! sudo git clone https://github.com/NetSPI/PowerUpSQL.git /opt/powerupsql #responder is awesome for LLMNR, NBT-NS and MDNS poisoning sudo git clone https://github.com/lgandx/Responder.git /opt/responder

Jaksot(705)

7MS #544: Interview with Nato Riley of Blumira

7MS #544: Interview with Nato Riley of Blumira

Today's episode is brought to us by Blumira, which provides easy to use, automated detection and response that can be setup in…well…about 7 minutes! Detect and resolve security threats faster and prevent breaches. Try it free today at blumira.com/7ms! Today we have a really fun interview with Nato Riley of Blumira. He cut his IT/security teeth working for a cell phone company, exorcising malware demons out of workstations, and even building an email-based SIEM. He has had a very cool career path that involves embracing newbness, pushing aside imposter syndrome, and even begging for jobs! I think this interview can best be summed up by a direct quote from Nato: "Things absolutely go wrong, and I think that's what deters people from trying. But just because something goes wrong, doesn't mean you're necessarily going to die from it. So why not try?"

28 Loka 202258min

7MS #543: How to Succeed in Business Without Really Crying - Part 12

7MS #543: How to Succeed in Business Without Really Crying - Part 12

This podcast is sponsored by Arctic Wolf, whose Concierge Security teams Monitor, Detect and Respond to Cyber threats 24/7 for thousands of customers around the world. Arctic Wolf. Redefining cybersecurity. Visit Arcticwolf.com/7MS to learn more. Hey friends! Today we talk about a SoSaaS (Spreadsheet on Steroids as a Service...not a real thing) that is helping 7MinSec be more organized - both from a project standpoint and from an "alert us when important things are due!" standpoint.

21 Loka 20221h

7MS #542: Eating the Security Dog Food - Part 5

7MS #542: Eating the Security Dog Food - Part 5

This podcast is sponsored by Arctic Wolf, whose Concierge Security teams Monitor, Detect and Respond to Cyber threats 24/7 for thousands of customers around the world. Arctic Wolf. Redefining cybersecurity. Visit Arcticwolf.com/7MS to learn more. In today's episode we talk more about eating the security dog food (following the best practices we preach!). Specifically, we focus on keeping that bloated email inbox a little more lean and mean. There are lots of tools/services to help with this, but we had a blast playing with MailStore (not a sponsor but we'd like them to be:-).

14 Loka 202228min

7MS #541: Tales of Blue Team Bliss - Part 2

7MS #541: Tales of Blue Team Bliss - Part 2

SafePass.me is the only enterprise solution to protect organizations against credential stuffing and password spraying attacks. Visit SafePass.me for more details, and tell them 7 Minute Security sent you to get a 10% discount! Today we talk about configuring your Active Directory with MFA protection thanks to AuthLite. In the tangent department, we give you a short, non-spoilery review of the film Smile.

7 Loka 202235min

7MS #540: Tales of Blue Team Bliss

7MS #540: Tales of Blue Team Bliss

Today we're excited to kick off a new series all about blue team bliss - in other words, we're talking about pentest stories where the blue team controls kicked our butt a little bit! Topics include: The ms-ds-machineaccount-quota value is not an "all or nothing" option! Check out Computer Configuration > Policies > Windows Settings > Security Settings > Local Policies > User Rights Assignment > Add workstations to domain. We installed LAPS on Twitch last week and it went pretty well! We'll do it again in an upcoming livestream. Defensive security tools that can interrupt the SharpHound collection! EDRs are pretty awesome at catching bad stuff - and going into full "shields up" mode when they're irritated!

30 Syys 202258min

7MS #539: Eating the Security Dog Food - Part 4

7MS #539: Eating the Security Dog Food - Part 4

Today we revisit a series we haven't touched in a long time all about eating the security dog food. TLDL about this series is I often find myself preaching security best practices, but don't always follow them as a consultancy. So today we talk about: How the internal 7MS infosec policy development is coming along Why I'm no longer going to be "product agnostic" going forward Some first impressions of a new tool I'm trying called ITGlue (not a sponsor) How to start building a critical asset list - and how it shouldn't overlook things like domain names and LetsEncrypt certs Also, don't forget we are doing weekly livestreams on security topics!

23 Syys 202247min

7MS #538: First Impressions of Airlock Digital

7MS #538: First Impressions of Airlock Digital

Hey friends! Today we're giving you a first impressions episode all about Airlock Digital, an application allowlisting solution. They were kind enough to let us play with it in our lab with the intention of exploring its bells and whistles, so we're excited to report back our findings in podcast form. TLDL: we really like this solution! It is easy to deploy (see this YouTube video for a quick walkthrough). Once I had it going in the lab, I tried administering it without reading any of the documentation, and figured out most of the workflows with ease. I just ran into a couple questions that the Airlock folks were great about answering quickly. I want to better understand the "Microsoft way" to do application allowlisting - using their standard offering or something like AaronLocker. But several colleagues have told me they had "OMG moments" where a C-level staff member suddenly needed to run something like ringcentral.exe and they weren't able to because of app blocklisting. It then becomes difficult to quickly allow that .exe to run without pushing GPO updates or having someone log in as local admin or something like that. But Airlock has a cool, killer feature to address this need...take a listen to today's program to learn more!

16 Syys 202236min

7MS #537: Tales of Pentest Pwnage - Part 42

7MS #537: Tales of Pentest Pwnage - Part 42

In today's episode we share some tips we've picked up in the last few weeks of pentesting, with hopes it will save you from at least a few rounds of smashing your face into the keyboard. Tips include: If you find yourself with "owns" rights to a bajillion hosts in BloodHound, this query will give you a nice list of those systems, one system per line: cat export-from-bloodhound.json | jq '.nodes[].label' | tr -d '"' Then you can scan with nmap to find the "live" hosts: nmap -sn -iL targets.txt For resource based constrained delegation attacks, check out this episode of pwnage for some step-by-step instructions. If you have RBCD admin access to victim systems, don't forget that CrackMapExec support Kerberos! So you can do stuff like: cme smb VICTIM-SYSTEM -k --sam or cme smb VICTIM-SYSTEM -k -M wdigest -M ACTION=enable Take the time to search SMB shares with something like PowerHuntShares. If you have write access in places, drop an SCF file to capture/pass hashes! Looking to privilege escalate while RDP'd into a system? You owe it to yourself to check out KrbRelayUp! Ever find yourself with cracked hashcat passwords that look something like '$HEX[xxxx]'? Check this tweet from mpgn for a great cracking tip!

9 Syys 202250min

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