Adversaries who have the password hash of a target service account (e.g. SharePoint, MSSQL) may forge Kerberos ticket granting service (TGS) tickets, also known as silver tickets. Kerberos TGS tickets are also known as service tickets.[1]

Silver tickets are more limited in scope in than golden tickets in that they only enable adversaries to access a particular resource (e.g. MSSQL) and the system that hosts the resource; however, unlike golden tickets, adversaries with the ability to forge silver tickets are able to create TGS tickets without interacting with the Key Distribution Center (KDC), potentially making detection more difficult.[2]

Password hashes for target services may be obtained using OS Credential Dumping or Kerberoasting.

References

  1. Sean Metcalf. (2015, November 17). How Attackers Use Kerberos Silver Tickets to Exploit Systems. Retrieved February 27, 2020.
  2. Metcalf, S. (2015, May 03). Detecting Forged Kerberos Ticket (Golden Ticket & Silver Ticket) Use in Active Directory. Retrieved December 23, 2015.

Ticket collegati

Collegamenti
Tipo di collegamento Ticket
is related to Techniques
is blocked by Password Policies
is blocked by Privileged Account Management
is blocked by Detect Forged Kerberos Silver Tickets (T1558.002)
is blocked by Encrypt Sensitive Information
is blocked by Prohibition Of Changes
is blocked by Statutory, Regulatory & Contractual Compliance
is blocked by Configuration Management Program
is blocked by Continuous Monitoring Policy
is blocked by Sensitive Data Inventories
is blocked by Digital Media Sanitization
is blocked by Malicious Code Protection (Antimalware)
is blocked by Documented Endpoint Security Protection Measures
is blocked by Personnel Transfer
is blocked by Identity & Access Management (IAM)
is blocked by Privileged Account Management (PAM)
is blocked by Password-Based Authentication
is blocked by Authenticator Feedback
is blocked by Restrictions on Shared Groups / Accounts
is blocked by Centralized Management Of Mobile Devices
is blocked by Zero Trust Architecture (ZTA)
is blocked by Policy Decision Point (PDP)
is blocked by Secure Engineering Principles
is blocked by Access Restriction For Change
is blocked by Executive Leadership Oversight of Security, Compliance & Resilience Controls
is blocked by Secure Baseline Configurations
is blocked by Continuous Monitoring
is blocked by Media & Data Retention
is blocked by Cybersecurity & Data Protection Attributes
is blocked by Endpoint File Integrity Monitoring (FIM)
is blocked by Separation of Duties (SoD)
is blocked by Account Management
is blocked by Authenticator Management
is blocked by Access Enforcement
is blocked by Least Privilege
is blocked by Identification & Authentication for Organizational Users
is blocked by Access Control For Mobile Devices
is blocked by Wireless Networking
is blocked by Remote Access
is blocked by Information In Shared Resources