Norrec
Norrec

Reputation: 11

AWS Policy for MFA Required for console but not CLI

I am trying to figure out an AWS Policy that will make it so MFA is enforced for Console users but not for CLI users, anyone have any ideas for this?

No matter what I do I can't seem to exclude CLI users. This is what I have been using.

I have tried changing lines 102-104 as a reverse version but when I do that I lose all access to AWS except through CLI..

{
  "Version": "2012-10-17",
  "Statement": [
    {
        "Sid": "AllowViewAccountInfo",
        "Effect": "Allow",
        "Action": [
            "iam:GetAccountPasswordPolicy",
            
            "iam:ListVirtualMFADevices"
        ],
        "Resource": "*"
    },       
    {
        "Sid": "AllowManageOwnPasswords",
        "Effect": "Allow",
        "Action": [
            "iam:ChangePassword",
            "iam:GetUser"
        ],
        "Resource": "arn:aws:iam::*:user/${aws:username}"
    },
    {
        "Sid": "AllowManageOwnAccessKeys",
        "Effect": "Allow",
        "Action": [
            "iam:CreateAccessKey",
            "iam:DeleteAccessKey",
            "iam:ListAccessKeys",
            "iam:UpdateAccessKey"
        ],
        "Resource": "arn:aws:iam::*:user/${aws:username}"
    },
    {
        "Sid": "AllowManageOwnSigningCertificates",
        "Effect": "Allow",
        "Action": [
            "iam:DeleteSigningCertificate",
            "iam:ListSigningCertificates",
            "iam:UpdateSigningCertificate",
            "iam:UploadSigningCertificate"
        ],
        "Resource": "arn:aws:iam::*:user/${aws:username}"
    },
    {
        "Sid": "AllowManageOwnSSHPublicKeys",
        "Effect": "Allow",
        "Action": [
            "iam:DeleteSSHPublicKey",
            "iam:GetSSHPublicKey",
            "iam:ListSSHPublicKeys",
            "iam:UpdateSSHPublicKey",
            "iam:UploadSSHPublicKey"
        ],
        "Resource": "arn:aws:iam::*:user/${aws:username}"
    },
    {
        "Sid": "AllowManageOwnGitCredentials",
        "Effect": "Allow",
        "Action": [
            "iam:CreateServiceSpecificCredential",
            "iam:DeleteServiceSpecificCredential",
            "iam:ListServiceSpecificCredentials",
            "iam:ResetServiceSpecificCredential",
            "iam:UpdateServiceSpecificCredential"
        ],
        "Resource": "arn:aws:iam::*:user/${aws:username}"
    },
    {
        "Sid": "AllowManageOwnVirtualMFADevice",
        "Effect": "Allow",
        "Action": [
            "iam:CreateVirtualMFADevice",
            "iam:DeleteVirtualMFADevice"
        ],
        "Resource": "arn:aws:iam::*:mfa/${aws:username}"
    },
    {
        "Sid": "AllowManageOwnUserMFA",
        "Effect": "Allow",
        "Action": [
            "iam:DeactivateMFADevice",
            "iam:EnableMFADevice",
            "iam:ListMFADevices",
            "iam:ResyncMFADevice"
        ],
        "Resource": "arn:aws:iam::*:user/${aws:username}"
    },
    {
        "Sid": "DenyAllExceptListedIfNoMFA",
        "Effect": "Deny",
        "NotAction": [
            "iam:CreateVirtualMFADevice",
            "iam:EnableMFADevice",
            "iam:GetUser",
            "iam:ListMFADevices",
            "iam:ListVirtualMFADevices",
            "iam:ResyncMFADevice",
            "sts:GetSessionToken"
        ],
        "Resource": "*",
        "Condition": {
            "BoolIfExists": {
                "aws:MultiFactorAuthPresent": "false"
            }
        }
    }
  ]
}

Upvotes: 1

Views: 900

Answers (1)

John Rotenstein
John Rotenstein

Reputation: 270104

The AWS Management Console makes API calls on behalf of users. Therefore, the same policy would apply to API calls as console calls.

Therefore, if you want a different set of rules to apply within the AWS Management Console, you would need to create a separate IAM User that has:

  • A password for login to the console
  • Does not have an Access Key & Secret Key (so they can't use the CLI)
  • Requires Multi-Factor Authentication

Upvotes: 1

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