# Kerberos Tickets ### Stealing Kerberos Tickets on Linux Kerberos Credential Cache (ccache) files contain Kerberos credentials for the domain user that has authenticated to the Linux machine, this is often a cached TGT. These are referred to as a Linux Cached Credential and are stored in `/tmp` and can be exfiltrated by an attacker to request service tickets. ```bash # Upon compromising a Linux system we identify a ccache file in /tmp ls /tmp -rw------- 1 parzival domain users 1342 May 18 14:39 krb5cc_1337_TejHnF # We can then download this ticket to our local machine and convert the ticket from ccache to kirbi python3 ticketConverter krb5cc_1337_TejHnF parzival.kirbi ``` --- # Agent Instructions: 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: ``` GET https://ttp.parzival.sh/pentesting/infrastructure/active-directory/os-credential-dumping/kerberos-tickets.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.