AWS S3 Bucket policy Cloudfront + IAM user access

Question

Cloudfront automatically added these bucket policy rules, but now my IAM user + production IAM role can't access the bucket to perform head object operation. How do I modify this to allow for object access for my server?

I also already tried using principle. It didn't work. The IAM user has full access to S3

```
{
	"Version": "2008-10-17",
	"Id": "PolicyForCloudFrontPrivateContent",
	"Statement": [
		{
			"Sid": "Server access",
			"Effect": "Allow",
			"Principal": "*",
			"Action": [
				"s3:GetObject",
				"s3:ListBucket",
				"s3:DeleteObject"
			],
			"Resource": [
				"arn:aws:s3:::bucket-name",
				"arn:aws:s3:::bucket-name/*"
			],
			"Condition": {
				"StringEquals": {
					"AWS:SourceArn": "arn:aws:iam::1234567890:user/dev"
				}
			}
		},
		{
			"Sid": "AllowCloudFrontServicePrincipal",
			"Effect": "Allow",
			"Principal": {
				"Service": "cloudfront.amazonaws.com"
			},
			"Action": "s3:GetObject",
			"Resource": "arn:aws:s3:::bucket-name/*",
			"Condition": {
				"StringEquals": {
					"AWS:SourceArn": "arn:aws:cloudfront::1234567890:distribution/asdf"
				}
			}
		}
	]
}
```

[![enter image description here][1]][1]

[1]: https://i.stack.imgur.com/ox5E7.png

Ajinkya B-AWS · Answer

Hello,
Please use the sample policy below. Using the AROAEXAMPLEID that you just retrieved via the AWS CLI
=====================================

```
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Principal": "*",
            "Action": "s3:*",
            "Resource": "arn:aws:s3:::bucketname/*",
            "Condition": {
                "StringLike": {
                    "aws:userId": "AIDAEXAMPLEID"
                }
            }
        },
        {
            "Sid": "AllowCloudFrontServicePrincipal",
            "Effect": "Allow",
            "Principal": {
                "Service": "cloudfront.amazonaws.com"
            },
            "Action": "s3:GetObject",
            "Resource": "arn:aws:s3:::bucketname/*",
            "Condition": {
                "StringEquals": {
                    "AWS:SourceArn": "arn:aws:cloudfront::1234567890:distribution/asdf"
                }
            }
        }
    ]
}
```

=====================================

Run the command: aws iam get-user -–user-name USER-NAME
In the output, look for the userId string, which will begin with AIDAEXAMPLEID.

If you are still facing issues, we need to check on Encryption, IAM user permissions and other factors mentioned in the article.

>>https://repost.aws/knowledge-center/s3-troubleshoot-403

AWS S3 Bucket policy Cloudfront + IAM user access

Hello, Please use the sample policy below. Using the AROAEXAMPLEID that you just retrieved via the AWS CLI

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