T1558.003 Kerberoasting Mappings

Adversaries may abuse a valid Kerberos ticket-granting ticket (TGT) or sniff network traffic to obtain a ticket-granting service (TGS) ticket that may be vulnerable to Brute Force.(Citation: Empire InvokeKerberoast Oct 2016)(Citation: AdSecurity Cracking Kerberos Dec 2015)

Service principal names (SPNs) are used to uniquely identify each instance of a Windows service. To enable authentication, Kerberos requires that SPNs be associated with at least one service logon account (an account specifically tasked with running a service(Citation: Microsoft Detecting Kerberoasting Feb 2018)).(Citation: Microsoft SPN)(Citation: Microsoft SetSPN)(Citation: SANS Attacking Kerberos Nov 2014)(Citation: Harmj0y Kerberoast Nov 2016)

Adversaries possessing a valid Kerberos ticket-granting ticket (TGT) may request one or more Kerberos ticket-granting service (TGS) service tickets for any SPN from a domain controller (DC).(Citation: Empire InvokeKerberoast Oct 2016)(Citation: AdSecurity Cracking Kerberos Dec 2015) Portions of these tickets may be encrypted with the RC4 algorithm, meaning the Kerberos 5 TGS-REP etype 23 hash of the service account associated with the SPN is used as the private key and is thus vulnerable to offline Brute Force attacks that may expose plaintext credentials.(Citation: AdSecurity Cracking Kerberos Dec 2015)(Citation: Empire InvokeKerberoast Oct 2016) (Citation: Harmj0y Kerberoast Nov 2016)

This same attack could be executed using service tickets captured from network traffic.(Citation: AdSecurity Cracking Kerberos Dec 2015)

Cracked hashes may enable Persistence, Privilege Escalation, and Lateral Movement via access to Valid Accounts.(Citation: SANS Attacking Kerberos Nov 2014)

View in MITRE ATT&CK®

Mappings

Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name
AC-16 Security and Privacy Attributes Protects T1558.003 Kerberoasting
AC-17 Remote Access Protects T1558.003 Kerberoasting
AC-18 Wireless Access Protects T1558.003 Kerberoasting
AC-19 Access Control for Mobile Devices Protects T1558.003 Kerberoasting
AC-2 Account Management Protects T1558.003 Kerberoasting
AC-3 Access Enforcement Protects T1558.003 Kerberoasting
AC-5 Separation of Duties Protects T1558.003 Kerberoasting
AC-6 Least Privilege Protects T1558.003 Kerberoasting
CA-7 Continuous Monitoring Protects T1558.003 Kerberoasting
CM-2 Baseline Configuration Protects T1558.003 Kerberoasting
CM-5 Access Restrictions for Change Protects T1558.003 Kerberoasting
CM-6 Configuration Settings Protects T1558.003 Kerberoasting
IA-2 Identification and Authentication (organizational Users) Protects T1558.003 Kerberoasting
IA-5 Authenticator Management Protects T1558.003 Kerberoasting
SC-4 Information in Shared System Resources Protects T1558.003 Kerberoasting
SI-12 Information Management and Retention Protects T1558.003 Kerberoasting
SI-3 Malicious Code Protection Protects T1558.003 Kerberoasting
SI-4 System Monitoring Protects T1558.003 Kerberoasting
SI-7 Software, Firmware, and Information Integrity Protects T1558.003 Kerberoasting
azure_sentinel Azure Sentinel technique_scores T1558.003 Kerberoasting
microsoft_defender_for_identity Microsoft Defender for Identity technique_scores T1558.003 Kerberoasting
azure_defender_for_app_service Azure Defender for App Service technique_scores T1558.003 Kerberoasting
azure_ad_identity_secure_score Azure AD Identity Secure Score technique_scores T1558.003 Kerberoasting