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MITRE ATT&CK - Техника Trust Modification
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MITRE ATT&CK
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Trust Modification
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Domain or Tenant Policy Modification:  Trust Modification

ID Название
.001 Изменение групповой политики
.002 Trust Modification

Adversaries may add new domain trusts, modify the properties of existing domain trusts, or otherwise change the configuration of trust relationships between domains and tenants to evade defenses and/or elevate privileges.Trust details, such as whether or not user identities are federated, allow authentication and authorization properties to apply between domains or tenants for the purpose of accessing shared resources.(Citation: Microsoft - Azure AD Federation) These trust objects may include accounts, credentials, and other authentication material applied to servers, tokens, and domains. Manipulating these trusts may allow an adversary to escalate privileges and/or evade defenses by modifying settings to add objects which they control. For example, in Microsoft Active Directory (AD) environments, this may be used to forge SAML Tokens without the need to compromise the signing certificate to forge new credentials. Instead, an adversary can manipulate domain trusts to add their own signing certificate. An adversary may also convert an AD domain to a federated domain using Active Directory Federation Services (AD FS), which may enable malicious trust modifications such as altering the claim issuance rules to log in any valid set of credentials as a specified user.(Citation: AADInternals zure AD Federated Domain) An adversary may also add a new federated identity provider to an identity tenant such as Okta or AWS IAM Identity Center, which may enable the adversary to authenticate as any user of the tenant.(Citation: Okta Cross-Tenant Impersonation 2023) This may enable the threat actor to gain broad access into a variety of cloud-based services that leverage the identity tenant. For example, in AWS environments, an adversary that creates a new identity provider for an AWS Organization will be able to federate into all of the AWS Organization member accounts without creating identities for each of the member accounts.(Citation: AWS RE:Inforce Threat Detection 2024)

ID: T1484.002
Относится к технике:  T1484
Тактика(-и): Defense Evasion, Privilege Escalation
Платформы: Identity Provider, Windows
Требуемые разрешения: Administrator
Источники данных: Active Directory: Active Directory Object Creation, Active Directory: Active Directory Object Modification, Application Log: Application Log Content, Command: Command Execution
Версия: 2.1
Дата создания: 28 Dec 2020
Последнее изменение: 25 Sep 2024

Примеры процедур
Название Описание
UNC2452

UNC2452 changed domain federation trust settings using Azure AD administrative permissions to configure the domain to accept authorization tokens signed by their own SAML signing certificate.(Citation: Microsoft 365 Defender Solorigate)
Scattered Spider

Scattered Spider adds a federated identity provider to the victim’s SSO tenant and activates automatic account linking.(Citation: CISA Scattered Spider Advisory November 2023)
APT29

APT29 changed domain federation trust settings using Azure AD administrative permissions to configure the domain to accept authorization tokens signed by their own SAML signing certificate.(Citation: Microsoft 365 Defender Solorigate)(Citation: Secureworks IRON RITUAL Profile)
AADInternals

AADInternals can create a backdoor by converting a domain to a federated domain which will be able to authenticate any user across the tenant. AADInternals can also modify DesktopSSO information.(Citation: AADInternals Documentation)(Citation: Azure AD Federation Vulnerability)

During the SolarWinds Compromise, APT29 changed domain federation trust settings using Azure AD administrative permissions to configure the domain to accept authorization tokens signed by their own SAML signing certificate.(Citation: Secureworks IRON RITUAL Profile)(Citation: Microsoft 365 Defender Solorigate)

Контрмеры
Контрмера Описание
Privileged Account Management

Manage the creation, modification, use, and permissions associated to privileged accounts, including SYSTEM and root.
User Account Management

Manage the creation, modification, use, and permissions associated to user accounts.

Обнаружение

Monitor for modifications to domain trust settings, such as when a user or application modifies the federation settings on the domain or updates domain authentication from Managed to Federated via ActionTypes Set federation settings on domain and Set domain authentication.(Citation: Microsoft - Azure Sentinel ADFSDomainTrustMods) This may also include monitoring for Event ID 307 which can be correlated to relevant Event ID 510 with the same Instance ID for change details.(Citation: Sygnia Golden SAML)(Citation: CISA SolarWinds Cloud Detection) Monitor for PowerShell commands such as: Update-MSOLFederatedDomain –DomainName: "Federated Domain Name", or Update-MSOLFederatedDomain –DomainName: "Federated Domain Name" –supportmultipledomain.(Citation: Microsoft - Update or Repair Federated domain)

Ссылки

  1. Microsoft 365 Defender Team. (2020, December 28). Using Microsoft 365 Defender to protect against Solorigate. Retrieved January 7, 2021.
  2. Secureworks CTU. (n.d.). IRON RITUAL. Retrieved February 24, 2022.
  3. Sygnia. (2020, December). Detection and Hunting of Golden SAML Attack. Retrieved January 6, 2021.
  4. Okta Defensive Cyber Operations. (2023, August 31). Cross-Tenant Impersonation: Prevention and Detection. Retrieved February 15, 2024.
  5. Microsoft. (2020, September 14). Update or repair the settings of a federated domain in Office 365, Azure, or Intune. Retrieved December 30, 2020.
  6. Microsoft. (2020, December). Azure Sentinel Detections. Retrieved December 30, 2020.
  7. Microsoft. (2018, November 28). What is federation with Azure AD?. Retrieved December 30, 2020.
  8. Dr. Nestori Syynimaa. (2017, November 16). Security vulnerability in Azure AD & Office 365 identity federation. Retrieved September 28, 2022.
  9. CISA. (2021, January 8). Detecting Post-Compromise Threat Activity in Microsoft Cloud Environments. Retrieved January 8, 2021.
  10. Ben Fletcher and Steve de Vera. (2024, June). New tactics and techniques for proactive threat detection. Retrieved September 25, 2024.
  11. Okta Defensive Cyber Operations. (2023, August 31). Cross-Tenant Impersonation: Prevention and Detection. Retrieved March 4, 2024.
  12. CISA. (2023, November 16). Cybersecurity Advisory: Scattered Spider (AA23-320A). Retrieved March 18, 2024.
  13. Dr. Nestori Syynimaa.. (2017, November 16). Security vulnerability in Azure AD & Office 365 identity federation. Retrieved February 1, 2022.
  14. Dr. Nestori Syynimaa. (2018, October 25). AADInternals. Retrieved February 18, 2022.
Навигация

Связанные риски

КЦД
STRIDE
Иное
Риск Связи
Раскрытие информации об ИТ инфраструктуре из-за возможности обнаружения или добавления доверительных отношений между доменами в доменных службах Active Directory
Конфиденциальность Раскрытие информации
Повышение привилегий в ОС из-за возможности обнаружения или добавления доверительных отношений между доменами microsoft Azure
Повышение привилегий Целостность
Повышение привилегий в ОС из-за возможности обнаружения или добавления доверительных отношений между доменами в доменных службах Active Directory
Повышение привилегий Целостность

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