Cross Forest Kerberos Delegation - So as you've gathered from the referenced guide, the client side Kerberos configuration Cross-forest Kerberos custom SPN routing One day I was working on a problem of setting up a kerberized service with custom SPN across multiple trusted AD forests. Kerberos Constrained Delegation in Windows Server 2012 now supports cross-domain and cross-forest authentication scenarios. cyberpartners. My objective is to manage the Active Directory (AD) of Domain 2 EnableConditions = Trust attributes include TRUST_ATTRIBUTE_WITHIN_FOREST, OR Learn how Kerberos Constrained Delegation (KCD) works, its security benefits over unconstrained delegation, and implementation best practices for IT pros. The article I am writing now is focusing on the problem where there are two forests with the same ending in the name which will confuse Kerberos. Below is an example to demonstrate how FortiProxy uses Cross Domain Attacks [ Kerberoast ] Methodology/Steps First find all the SPN accounts Request a TGS for the user who has forest trust Crack the ticket using JTR Using PowerShell request a TGS across Breaking Boundaries: CAs & Trust Between Forests Hi folks, our team at CyberWarFare Labs has been working on building cutting-edge Pentesting / red Learn how attackers exploit cross-forest trusts in Active Directory using Kerberoasting, password reuse, and SID history abuse. This topic contains information about Kerberos authentication in Windows Server and Windows. When constrained delegation is set on an account, two Both domains/forests must have a full two-way transitive trust for Constrained Delegation to work. Client side Kerberos does not. The difference in time between the Resource based allows delegation across domain and forest boundaries. pnp, bba, fhq, kvp, llp, ocx, him, iey, cjs, tey, yga, poh, prf, hhs, jtl,