COMMON ATTACK PATTERN ENUMERATION AND CLASSIFICATIONMITRE canlı kaydı

CAPEC-645

Use of Captured Tickets (Pass The Ticket)

An adversary uses stolen Kerberos tickets to access systems/resources that leverage the Kerberos authentication protocol. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. An adversary can obtain any one of these tickets (e.g. Service Ticket, Ticket Granting Ticket, Silver Ticket, or Golden Ticket) to authenticate to a system/resource without needing the account's credentials. Depending on the ticket obtained, the adversary may be able to access a particular resource or generate TGTs for any account within an Active Directory Domain.

Soyutlama

Detailed

Tipik ciddiyet

High

Saldırı ihtimali

Low

Saldırıyı anla

Bu saldırı kalıbı nedir?

An adversary uses stolen Kerberos tickets to access systems/resources that leverage the Kerberos authentication protocol. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. An adversary can obtain any one of these tickets (e.g. Service Ticket, Ticket Granting Ticket, Silver Ticket, or Golden Ticket) to authenticate to a system/resource without needing the account's credentials. Depending on the ticket obtained, the adversary may be able to access a particular resource or generate TGTs for any account within an Active Directory Domain.

Gereksinimler

Saldırının gerçekleşmesi için ne gerekir?

Ön koşullar

  • The adversary needs physical access to the victim system.
  • The use of a third-party credential harvesting tool.

Gerekli beceri

  • Low: Determine if Kerberos authentication is used on the server.
  • High: The adversary uses a third-party tool to obtain the necessary tickets to execute the attack.

Gerekli kaynak

MITRE kaydında belirtilmemiş.

Etki

Başarılı saldırı neye yol açar?

Gain Privileges

Etkilenen alanlar: Integrity

Savunma

Nasıl önlenir ve etkisi azaltılır?

1
Reset the built-in KRBTGT account password twice to invalidate the existence of any current Golden Tickets and any tickets derived from them.
2
Monitor system and domain logs for abnormal access.

Gerçek dünya

MITRE örnek olayları

Örnek olay 1Detay
Bronze Butler (also known as Tick), has been shown to leverage forged Kerberos Ticket Granting Tickets (TGTs) and Ticket Granting Service (TGS) tickets to maintain administrative access on a number of systems. [ REF-584 ]