MITRE ATT&CK - Técnica

T1556.006: Multi-Factor Authentication

Multi-Factor Authentication (T1556.006) é uma técnica catalogada no MITRE ATT&CK Enterprise usada como referência para mapear comportamento adversário em auditorias de segurança.

Técnica T1556.006 Enterprise ATT&CK

Contexto para AppSec

Em uma auditoria de AppSec, Multi-Factor Authentication deve ser usada para revisar caminhos em que código, configuração, dependências ou infraestrutura podem viabilizar o comportamento descrito pela MITRE. No ATT&CK, ela aparece em Defense Impairment, Persistence e Credential Access. As plataformas mapeadas pela MITRE incluem IaaS, Identity Provider, Linux, macOS, Office Suite, SaaS e Windows. No Vigly, esse contexto ajuda a conectar evidências do repositório com priorização e remediação.

Tática/fase Defense Impairment, Persistence, Credential Access
Plataformas MITRE IaaS, Identity Provider, Linux, macOS, Office Suite, SaaS, Windows

Descrição oficial original do MITRE ATT&CK

Adversaries may disable or modify multi-factor authentication (MFA) mechanisms to enable persistent access to compromised accounts. Once adversaries have gained access to a network by either compromising an account lacking MFA or by employing an MFA bypass method such as Multi-Factor Authentication Request Generation, adversaries may leverage their access to modify or completely disable MFA defenses. This can be accomplished by abusing legitimate features, such as excluding users from Azure AD Conditional Access Policies, registering a new yet vulnerable/adversary-controlled MFA method, or by manually patching MFA programs and configuration files to bypass expected functionality. For example, modifying the Windows hosts file (C:\windows\system32\drivers\etc\hosts) to redirect MFA calls to localhost instead of an MFA server may cause the MFA process to fail. If a "fail open" policy is in place, any otherwise successful authentication attempt may be granted access without enforcing MFA. Depending on the scope, goals, and privileges of the adversary, MFA defenses may be disabled for individual accounts or for all accounts tied to a larger group, such as all domain accounts in a victim's network environment.

Ver fonte oficial no MITRE ATT&CK

Como o Vigly audita a técnica Multi-Factor Authentication automaticamente na sua pipeline

O Vigly cruza sinais de SAST, modelagem de ameaças, regras de negócio e evidências do repositório para priorizar riscos reais antes que eles cheguem à produção.

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