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Pentesting Active Directory and Windows-based Infrastructure

You're reading from  Pentesting Active Directory and Windows-based Infrastructure

Product type Book
Published in Nov 2023
Publisher Packt
ISBN-13 9781804611364
Pages 360 pages
Edition 1st Edition
Languages
Concepts
Author (1):
Denis Isakov Denis Isakov
Profile icon Denis Isakov

Table of Contents (13) Chapters

Preface 1. Chapter 1: Getting the Lab Ready and Attacking Exchange Server 2. Chapter 2: Defense Evasion 3. Chapter 3: Domain Reconnaissance and Discovery 4. Chapter 4: Credential Access in Domain 5. Chapter 5: Lateral Movement in Domain and Across Forests 6. Chapter 6: Domain Privilege Escalation 7. Chapter 7: Persistence on Domain Level 8. Chapter 8: Abusing Active Directory Certificate Services 9. Chapter 9: Compromising Microsoft SQL Server 10. Chapter 10: Taking Over WSUS and SCCM 11. Index 12. Other Books You May Enjoy

Kerberos delegation

First of all, we need to discuss what delegation is and why it exists. Services within Active Directory sometimes need to be accessed by other services on behalf of the domain user. Think of a web server authenticating to the database on the backend on behalf of the user. There are three types of delegation available in Active Directory (AD) – unconstrained, constrained, and resource-based. Information about delegation can be found by using BloodHound, PowerView, or the AD module. We will cover the types of delegation in the following respective sections.

Note

For our lab, Mayfly prepared, as usual, a great walk-through to follow: https://mayfly277.github.io/posts/GOADv2-pwning-part10/.

Unconstrained delegation

We will start our journey with the oldest type of delegation. With unconstrained delegation enabled on the computer or user, it is possible to impersonate an authenticating user or computer to any service on any host. If we compromise the...

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