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拒絕 AWS S3 中的匿名下載

tag-icon • tag-icon amazon-web-services amazon-s3
拒絕 AWS S3 中的匿名下載

我有一個儲存桶，裡面有幾個可公開下載的檔案。我想制定一個儲存桶策略，之後這些檔案只能由我的 IAM 用戶下載。到目前為止我得到的政策是這樣的：

{
    "Version": "2008-10-17",
    "Id": "Policy1424952346041",
    "Statement": [
        {
            "Sid": "Stmt1424958477350",
            "Effect": "Deny",
            "NotPrincipal": {
                "AWS": "arn:aws:iam::777777777777:root"
            },
            "Action": "s3:*",
            "Resource": "arn:aws:s3:::test/*"
        },
        {
            "Sid": "Stmt1424958477351",
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::777777777777:root"
            },
            "Action": "s3:*",
            "Resource": "arn:aws:s3:::test/*"
        }
    ]
}

然而，它否定了包括 IAM 用戶在內的所有人。誰能指出這裡有什麼問題嗎？

答案1

根據您在帳戶中擁有的 IAM 使用者數量，您可以在兩個語句中指定帳戶，如下所示（嘗試一兩個只是作為測試，看看它是否有效）。我過去在獲取 arn:aws:iam::XXXXXXXXXXXX:root 以實際覆蓋所有 IAM 帳戶時遇到過問題。您也可以嘗試僅指定 IAM 使用者並刪除根條目。

{
    "Version": "2008-10-17",
    "Id": "Policy1424952346041",
    "Statement": [
        {
            "Sid": "Stmt1424958477350",
            "Effect": "Deny",
            "NotPrincipal": {
                "AWS": [
                        "arn:aws:iam::777777777777:root",
                        "arn:aws:iam::777777777777:user/user1", 
                        "arn:aws:iam::777777777777:user/user2" ]
            },
            "Action": "s3:*",
            "Resource": "arn:aws:s3:::test/*"
        },
        {
            "Sid": "Stmt1424958477351",
            "Effect": "Allow",
            "Principal": {
                "AWS": [
                        "arn:aws:iam::777777777777:root",
                        "arn:aws:iam::777777777777:user/user1",
                        "arn:aws:iam::777777777777:user/user2" ]
            },
            "Action": "s3:*",
            "Resource": "arn:aws:s3:::test/*"
        }
    ]
}

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