Google Storage AuditLogs - 查找试图访问的人

如何解决Google Storage AuditLogs - 查找试图访问的人

我有一个启用了审计日志的谷歌存储桶。每隔一两天，我都会收到有关 PERMISSION DENIED 的日志。日志指定了请求者要求的访问类型。但是，没有给我足够的信息来回答这个问题 - 谁在请求？

这是日志消息：

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如您所见，谈论“谁试图访问”的唯一信息是

{
    "insertId": "rr6wsd...","logName": "projects/PROJECT_ID/logs/cloudaudit.googleapis.com%2Fdata_access","protoPayload": {
        "@type": "type.googleapis.com/google.cloud.audit.AuditLog","authenticationInfo": {},"authorizationInfo": [
            {
                "permission": "storage.buckets.get","resource": "projects//buckets/BUCKET_NAME","resourceAttributes": {}
            }
        ],"methodName": "storage.buckets.get","requestMetadata": {
            "callerSuppliedUserAgent": "Blob/1 (cr/340918833)","destinationAttributes": {},"requestAttributes": {
                "auth": {},"reason": "8uSywAZKWkhOZWVkZWQg...","time": "2021-01-20T03:43:38.405230045Z"
            }
        },"resourceLocation": {
            "currentLocations": [
                "us-central1"
            ]
        },"resourceName": "projects//buckets/BUCKET_NAME","serviceName": "storage.googleapis.com","status": {
            "code": 7,"message": "PERMISSION_DENIED"
        }
    },"receiveTimestamp": "2021-01-20T03:43:38.488787956Z","resource": {
        "labels": {
            "bucket_name": "BUCKET_NAME","location": "us-central1","project_id": "PROJECT_ID"
        },"type": "gcs_bucket"
    },"severity": "ERROR","timestamp": "2021-01-20T03:43:38.399417759Z"
}

但这意味着什么？对我来说毫无意义。

我如何了解谁在尝试访问此权限？

解决方法

callerSuppliedUserAgent 可以是客户端应用程序放入其请求标头中的任何内容 - 忽略它，因为此标头可能是伪造的。只有合法的应用程序才会在标头中放入任何有意义的内容。

这是一个未经身份验证的请求。没有要记录的身份。很可能是巨魔扫描互联网寻找打开的桶。

请注意 auth 键为空。请求中未提供授权。

"requestAttributes": {
    "auth": {},"reason": "8uSywAZKWkhOZWVkZWQg...","time": "2021-01-20T03:43:38.405230045Z"
}