Cognito 用户池中的 SMS MFA 状态是通过调用 setPreferredMFA 设置的还是其他？

Question

使用 setPreferredMFA 时，即使设置了 setPreferredMFA，Cognito 用户池中的 SMS MFA 状态也会被禁用。

SMS MFA 状态代表什么，当我启用或禁用它时它有什么作用？

谢谢

Answer 1

这只不过是 AWS console/API 响应中的不一致。例子：让我们为用户启用 SMS MFA：

aws cognito-idp set-user-mfa-preference --sms-mfa-settings Enabled=true,PreferredMfa=true --access-token <value>

是的，在控制台中它看起来仍然没有启用 SMS MFA。但是这是错误的。让我们获取用户的数据：

aws cognito-idp get-user --access-token <value>

{
    "Username": "your-email@example.com",
    "UserAttributes": [
        {
            "Name": "sub",
            "Value": "491a3eba-381f-4c87-a7d6-befa21e49e82"
        },
        {
            "Name": "email_verified",
            "Value": "true"
        },
        {
            "Name": "phone_number_verified",
            "Value": "true"
        },
        {
            "Name": "phone_number",
            "Value": "+1234567890"
        },
        {
            "Name": "email",
            "Value": "your-email@example.com"
        }
    ],
    "PreferredMfaSetting": "SMS_MFA",
    "UserMFASettingList": [
        "SMS_MFA"
    ]
}

你要看的是PreferredMfaSetting属性。它会告诉您用户为 himself/herself.

选择了什么

如果您现在尝试像这样进行身份验证：

aws cognito-idp initiate-auth --auth-flow USER_PASSWORD_AUTH --client-id <value> --auth-parameters USERNAME=<value>,PASSWORD=<value>

您将收到这样的回复：

{
    "ChallengeName": "SMS_MFA",
    "Session": "<session-value>",
    "ChallengeParameters": {
        "CODE_DELIVERY_DELIVERY_MEDIUM": "SMS",
        "CODE_DELIVERY_DESTINATION": "+*********7890",
        "USER_ID_FOR_SRP": "your-email@example.com"
    }
}

好的，控制台中的这个东西在做什么？它实际上已被弃用。在此处查看 MFAOptions 的文档：https://docs.aws.amazon.com/cognito-user-identity-pools/latest/APIReference/API_GetUser.html

所以让我们通过控制台启用 SMS MFA，然后检查 GetUser:

的输出

{
    "Username": "your-email@example.com",
    "UserAttributes": [
        {
            "Name": "sub",
            "Value": "491a3eba-381f-4c87-a7d6-befa21e49e82"
        },
        {
            "Name": "email_verified",
            "Value": "true"
        },
        {
            "Name": "phone_number_verified",
            "Value": "true"
        },
        {
            "Name": "phone_number",
            "Value": "+1234567890"
        },
        {
            "Name": "email",
            "Value": "your-email@example.com"
        }
    ],
    "MFAOptions": [
        {
            "DeliveryMedium": "SMS",
            "AttributeName": "phone_number"
        }
    ],
    "PreferredMfaSetting": "SMS_MFA",
    "UserMFASettingList": [
        "SMS_MFA"
    ]
}

差不多就这些了。

Cognito 用户池中的 SMS MFA 状态是通过调用 setPreferredMFA 设置的还是其他？

Is SMS MFA Status in Cognito user pools set by calling setPreferredMFA or is that something else?

amazon-cognito

multi-factor-authentication