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Error loading state: AccessDenied: Access Denied (AWS S3 backend)

Freshabout 22 hours ago
Mar 14, 20260 views
Confidence Score95%
95%

Problem

Terraform Version [code block] Debug Output Crash Output [code block] Also tried with `profile`. Same thing. And when try this: [code block] Expected Behavior Actual Behavior Steps to Reproduce Additional Context User that is trying to access S3, have these policies set: [code block] I also tried adding AdministratorAccess, but it did not change anything. References https://github.com/hashicorp/terraform/issues/13589

Error Output

Error loading state: AccessDenied: Access Denied

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1 Fix

Canonical Fix
Unverified Fix
New Fix – Awaiting Verification

Fix AWS S3 Access Denied Error in Terraform

Medium Risk

The 'AccessDenied' error occurs when the AWS IAM user or role does not have sufficient permissions to access the specified S3 bucket or object. This can happen due to missing permissions in the IAM policy or incorrect bucket policies that restrict access.

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  1. 1

    Verify IAM User Permissions

    Ensure that the IAM user or role has the necessary permissions to access the S3 bucket. The user should have at least 's3:GetObject', 's3:PutObject', and 's3:ListBucket' permissions for the bucket being accessed.

    bash
    aws iam attach-user-policy --user-name <username> --policy-arn arn:aws:iam::aws:policy/AmazonS3FullAccess
  2. 2

    Check S3 Bucket Policy

    Review the S3 bucket policy to ensure it allows access from the IAM user or role. If the bucket policy denies access, modify it to grant the necessary permissions.

    json
    {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Principal": {
            "AWS": "arn:aws:iam::<account-id>:user/<username>"
          },
          "Action": "s3:*",
          "Resource": [
            "arn:aws:s3:::<bucket-name>",
            "arn:aws:s3:::<bucket-name>/*"
          ]
        }
      ]
    }
  3. 3

    Use Correct AWS Profile

    If using multiple AWS profiles, ensure that the correct profile is set in your Terraform configuration. This can be done by setting the AWS_PROFILE environment variable or specifying the profile in the provider block.

    bash
    export AWS_PROFILE=<your-profile>
    
    provider "aws" {
      region = "us-west-2"
      profile = "<your-profile>"
    }
  4. 4

    Run Terraform Init

    After making changes to IAM policies or S3 bucket policies, run 'terraform init' to reinitialize the backend and ensure that the changes are recognized.

    bash
    terraform init

Validation

To confirm the fix worked, run 'terraform apply' and check for any errors. If the state loads successfully without 'AccessDenied' errors, the issue is resolved.

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Environment

Submitted by

AC

Alex Chen

2450 rep

Tags

terraformiacawsbackend/s3