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amazon-web-services - AWS 访问策略评估不允许放置存储桶策略

问题描述

我将以下策略附加到 IAM 用户：

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": [
                "s3:PutAnalyticsConfiguration",
                "s3:GetObjectVersionTagging",
                "s3:CreateBucket",
                "s3:ReplicateObject",
                "s3:GetObjectAcl",
                "s3:DeleteBucketWebsite",
                "s3:PutLifecycleConfiguration",
                "s3:GetObjectVersionAcl",
                "s3:PutBucketAcl",
                "s3:PutObjectTagging",
                "s3:DeleteObject",
                "s3:DeleteObjectTagging",
                "s3:GetBucketWebsite",
                "s3:PutReplicationConfiguration",
                "s3:DeleteObjectVersionTagging",
                "s3:GetBucketNotification",
                "s3:PutBucketCORS",
                "s3:DeleteBucketPolicy",
                "s3:GetReplicationConfiguration",
                "s3:ListMultipartUploadParts",
                "s3:PutObject",
                "s3:GetObject",
                "s3:PutBucketNotification",
                "s3:PutBucketLogging",
                "s3:PutObjectVersionAcl",
                "s3:GetAnalyticsConfiguration",
                "s3:GetObjectVersionForReplication",
                "s3:GetLifecycleConfiguration",
                "s3:GetInventoryConfiguration",
                "s3:GetBucketTagging",
                "s3:PutAccelerateConfiguration",
                "s3:DeleteObjectVersion",
                "s3:GetBucketLogging",
                "s3:ListBucketVersions",
                "s3:ReplicateTags",
                "s3:RestoreObject",
                "s3:ListBucket",
                "s3:GetAccelerateConfiguration",
                "s3:GetBucketPolicy",
                "s3:PutEncryptionConfiguration",
                "s3:GetEncryptionConfiguration",
                "s3:GetObjectVersionTorrent",
                "s3:AbortMultipartUpload",
                "s3:PutBucketTagging",
                "s3:GetBucketRequestPayment",
                "s3:GetObjectTagging",
                "s3:GetMetricsConfiguration",
                "s3:DeleteBucket",
                "s3:PutBucketVersioning",
                "s3:PutObjectAcl",
                "s3:ListBucketMultipartUploads",
                "s3:PutMetricsConfiguration",
                "s3:PutObjectVersionTagging",
                "s3:GetBucketVersioning",
                "s3:GetBucketAcl",
                "s3:PutInventoryConfiguration",
                "s3:GetObjectTorrent",
                "s3:ObjectOwnerOverrideToBucketOwner",
                "s3:PutBucketWebsite",
                "s3:PutBucketRequestPayment",
                "s3:GetBucketCORS",
                "s3:PutBucketPolicy",
                "s3:GetBucketLocation",
                "s3:ReplicateDelete",
                "s3:GetObjectVersion"
            ],
            "Resource": [
                "arn:aws:s3:::xyz123-mycloud-dump",
                "arn:aws:s3:::xyz123-mycloud-dump/SAMPLE/*"
            ]
        },
        {
            "Sid": "VisualEditor1",
            "Effect": "Allow",
            "Action": [
                "s3:ListAllMyBuckets",
                "s3:HeadBucket"
            ],
            "Resource": "*"
        }
    ]
}

现在，使用附加了上述策略的 IAM 用户的访问凭证，我正在尝试运行以下命令：

s3api put-bucket-policy --bucket xyz123-mycloud-dump --policy file://policy.json

文件policy.json的内容是：

{
    "Statement": [
      {
          "Effect": "Allow",
          "Principal": "arn:aws:iam::<the_account_number_to_which_the_user_belongs>:user/<the_IAM_user_name>",
          "Action": "s3:*",
          "Resource": ["arn:aws:s3:::xyz123-mycloud-dump/SAMPLE/*", "arn:aws:s3:::xyz123-mycloud-dump"]
      }
    ]
}

我得到一个

调用 PutBucketPolicy 操作时发生错误 (AccessDenied)：Access Denied

现在我试图理解为什么？

用户的策略声明允许PutBucketPolicy对资源：

xyz123-mycloud-dump,
xyz123-mycloud-dump/SAMPLE/

这就是我在上面的政策中尝试做的事情。那为什么拒绝访问呢？

标签： amazon-web-servicesamazon-s3amazon-iam

解决方案

从这里：

要解决拒绝访问错误，请检查以下内容：

  • 您的 IAM 身份拥有 s3:GetBucketPolicy 和 s3:PutBucketPolicy 的权限。
  • 存储桶策略不会拒绝您
    对 s3:GetBucketPolicy 或 s3:PutBucketPolicy 的 IAM 身份权限。
  • 启用 Amazon S3 阻止公共访问后，您对存储桶策略的更改不会授予公共访问权限。
  • AWS Organizations 服务控制策略允许访问 Amazon S3。
  • 如果存储桶策略拒绝所有人访问 s3:GetBucketPolicy、s3:PutBucketPolicy 或所有 Amazon S3 操作 (s3:*)，则删除存储桶策略。

检查您是否有您不知道的活动组织级别 SCP，或者是否启用了阻止公共访问。

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