Request for IP Unblock - CloudFront 403 Error

Hello.

re: Have you configured AWS WAF on CloudFront as described in the Post Agent's automated response?
In this case, it's possible that the request is being blocked by an AWS WAF rule, so try searching for the Web ACL in the AWS WAF console to see if the request is being blocked.
https://repost.aws/knowledge-center/cloudfront-error-request-blocked

I understand you're experiencing recurring 403 errors from CloudFront after a previous unblock request. This situation is not uncommon, and there are a few important points to consider:

1. CloudFront itself doesn't typically implement automatic IP blocking. The 403 errors you're seeing are more likely due to security measures implemented by the website owner using AWS services.

2. These security measures often involve AWS Web Application Firewall (WAF) in conjunction with CloudFront. WAF can use various rule sets to filter traffic, including AWS-managed IP reputation lists.

3. Your IP address may have been flagged due to various reasons such as:

• High request rates triggering rate limiting rules
• Your IP being on one of the AWS-managed IP reputation lists
• Custom rules set by the website owner

4. If your IP is dynamically assigned, it's possible that it was previously used by a malicious actor, causing it to be flagged.

5. Simply requesting an IP unblock may not be a long-term solution if the underlying cause isn't addressed.

To resolve this issue:

1. Check if the problem persists across different networks (e.g., try cellular data if you're on Wi-Fi).

2. If possible, try to get a new IP address from your ISP.

3. Contact the website owner directly. They can review their WAF rules and CloudFront settings to determine why your IP is being blocked.

4. If you believe this is a false positive, you can provide the website owner with dates and times of your legitimate access attempts to help them investigate.

5. As a user, avoid actions that might trigger security measures, such as making an unusually high number of requests in a short time.

Remember, AWS Support can't directly modify or remove IPs from block lists for individual websites, as these are controlled by the website owners. Your best course of action is to work with the website owner to resolve the issue.
Sources
How do I Unblock my IP | AWS re:Post
Why is my IP blocked by some AWS CloudFront services? | AWS re:Post
Cloudfron 403 error messsage | AWS re:Post