Menu

Individual skill

attacking-kerberos-delegation

0upvotes

Identify and abuse Active Directory Kerberos delegation — unconstrained delegation with printer-bug coercion, constrained delegation with protocol transition (S4U2Self/S4U2Proxy), and resource-based constrained delegation via machine-account creation and msDS-AllowedToActOnBehalfOfOtherIdentity. Use when BloodHound or enumeration flags delegation, when you control an account with an SPN or GenericWrite over a computer, or when escalating within a domain.

secskills-offense/skills/attacking-kerberos-delegation/SKILL.md

Read pinned source

Source commit ca53957bcd8e3b83b5d4d190bb3ad008a4f15c84

What was checked

Matches the observed repository HEAD
Yes
Scanner rules are current
No
Repository scan complete
No
Skill scan complete
No
Observed behavior
Not checked yet
Last checked
Nov 6, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings)
188
Repository last updated
Sep 4, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files
Read excerpt

# Attacking Kerberos Delegation

Delegation lets a service impersonate users to other services. Every form of it
is a controlled way to become someone else, and each has a misconfiguration
that removes the control. RBCD in particular turns a common, low-looking
permission — write access to a computer object — into full compromise of that
host, which is why it is the delegation attack that comes up most.

Only against domains you are authorized to test.

## When to Use

- BloodHound flags `Unconstrained`, `Constrained`, or `RBCD` delegation
- You control an account with an SPN, or `GenericWrite`/`GenericAll` over a
Back to top