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Cis Azure Foundations 5.5

DevOps & Security
cis-azure-foundations-5.5

Cis Azure Foundations 5.5 is an Agent Skill for devops & security published in the CyberStrikeus/CyberStrike repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Ensure 'Number of methods required to reset' is set to '2'

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  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/CIS_benchmarks/Cloud_Providers/Microsoft_Azure/CIS_Microsoft_Azure_Foundations_Benchmark_v5.0.0/cis-azure-foundations-5.5/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/cis-azure-foundations-5-5, but wait for my approval before writing files or running scripts.

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Ensure 'Number of methods required to reset' is set to '2'

Description

Ensures that two alternate forms of identification are provided before allowing a password reset.

Rationale

A Self-service Password Reset (SSPR) through Azure Multi-factor Authentication (MFA) ensures the user's identity is confirmed using two separate methods of identification. With multiple methods set, an attacker would have to compromise both methods before they could maliciously reset a user's password.

Impact

There may be administrative overhead, as users who lose access to their secondary authentication methods will need an administrator with permissions to remove it. There will also need to be organization-wide security policies and training to teach administrators to verify the identity of the requesting user so that social engineering cannot render this setting useless.

Audit Procedure

Using Azure Portal

  1. From Azure Home select the Portal Menu
  2. Select Microsoft Entra ID
  3. Under Manage, select Users
  4. Under Manage, select Password reset
  5. Select Authentication methods
  6. Ensure that Number of methods required to reset is set to 2

Expected Result

Number of methods required to reset should be set to 2.

Remediation

Using Azure Portal

  1. From Azure Home select the Portal Menu
  2. Select Microsoft Entra ID
  3. Under Manage, select Users
  4. Under Manage, select Password reset
  5. Select Authentication methods
  6. Set the Number of methods required to reset to 2
  7. Click Save

Default Value

By default, the Number of methods required to reset is 1.

References

  1. https://learn.microsoft.com/en-us/entra/identity/authentication/tutorial-enable-sspr
  2. https://learn.microsoft.com/en-us/entra/identity/authentication/concept-registration-mfa-sspr-combined
  3. https://learn.microsoft.com/en-us/security/benchmark/azure/mcsb-identity-management#im-6-use-strong-authentication-controls
  4. https://learn.microsoft.com/en-us/entra/identity/authentication/passwords-faq#password-reset-registration
  5. https://support.microsoft.com/en-us/account-billing/reset-your-work-or-school-password-using-security-info-23dde81f-08bb-4776-ba72-e6b72b9dda9e
  6. https://learn.microsoft.com/en-us/entra/identity/authentication/concept-authentication-methods

CIS Controls

Controls VersionControlIG 1IG 2IG 3
v86.3 Require MFA for Externally-Exposed Applicationsxx
v86.4 Require MFA for Remote Network Accessxxx
v716.3 Require Multi-factor Authenticationxx

Profile

Level 1 | Manual