AWS MFA Security

aws_mfa_security.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowAllUsersToListAccounts",
            "Effect": "Allow",
            "Action": [
                "iam:ListAccountAliases",
                "iam:GetAccountPasswordPolicy",
                "iam:ListUsers",
                "iam:GetAccountSummary"
            ],
            "Resource": [
                "*"
            ]
        },
        {
            "Sid": "AllowIndividualUserToSeeTheirAccountInformationAndCreateAccessKey",
            "Effect": "Allow",
            "Action": [
                "iam:ChangePassword",
                "iam:CreateLoginProfile",
                "iam:DeleteLoginProfile",
                "iam:GetAccountPasswordPolicy",
                "iam:GetLoginProfile",
                "iam:UpdateLoginProfile",
                "iam:CreateAccessKey",
                "iam:ListAccessKeys"
            ],
            "Resource": [
                "arn:aws:iam::PASTE_ACCOUNT_NUMBER:user/${aws:username}"
            ]
        },
        {
            "Sid": "AllowIndividualUserToListTheirMFA",
            "Effect": "Allow",
            "Action": [
                "iam:ListVirtualMFADevices",
                "iam:ListMFADevices"
            ],
            "Resource": [
                "arn:aws:iam::PASTE_ACCOUNT_NUMBER:mfa/*",
                "arn:aws:iam::PASTE_ACCOUNT_NUMBER:user/${aws:username}"
            ]
        },
        {
            "Sid": "AllowIndividualUserToManageTheirMFA",
            "Effect": "Allow",
            "Action": [
                "iam:CreateVirtualMFADevice",
                "iam:EnableMFADevice",
                "iam:ResyncMFADevice"
            ],
            "Resource": [
                "arn:aws:iam::PASTE_ACCOUNT_NUMBER:mfa/${aws:username}",
                "arn:aws:iam::PASTE_ACCOUNT_NUMBER:user/${aws:username}"
            ]
        },
        {
            "Sid": "DenyEverythingExceptForBelowUnlessMFAd",
            "Effect": "Deny",
            "NotAction": [
                "iam:ListVirtualMFADevices",
                "iam:ListMFADevices",
                "iam:ListUsers",
                "iam:ListAccountAliases",
                "iam:CreateVirtualMFADevice",
                "iam:EnableMFADevice",
                "iam:ResyncMFADevice",
                "iam:ChangePassword",
                "iam:CreateLoginProfile",
                "iam:DeleteLoginProfile",
                "iam:GetAccountPasswordPolicy",
                "iam:GetAccountSummary",
                "iam:GetLoginProfile",
                "iam:UpdateLoginProfile"
            ],
            "Resource": "*",
            "Condition": {
                "Null": {
                    "aws:MultiFactorAuthAge": "true"
                }
            }
        },
        {
            "Sid": "DenyIamAccessToOtherAccountsUnlessMFAd",
            "Effect": "Deny",
            "Action": [
                "iam:CreateVirtualMFADevice",
                "iam:DeactivateMFADevice",
                "iam:DeleteVirtualMFADevice",
                "iam:EnableMFADevice",
                "iam:ResyncMFADevice",
                "iam:ChangePassword",
                "iam:CreateLoginProfile",
                "iam:DeleteLoginProfile",
                "iam:GetAccountPasswordPolicy",
                "iam:GetLoginProfile",
                "iam:UpdateLoginProfile",
                "iam:CreateAccessKey",
                "iam:ListAccessKeys"
            ],
            "NotResource": [
                "arn:aws:iam::PASTE_ACCOUNT_NUMBER:mfa/${aws:username}",
                "arn:aws:iam::PASTE_ACCOUNT_NUMBER:user/${aws:username}"
            ],
            "Condition": {
                "Null": {
                    "aws:MultiFactorAuthAge": "true"
                }
            }
        }
    ]
}