If you find any connections using TLS 1.0 or 1.1, you should update your client software to use TLS 1.2 or later.ĪWS CloudTrail records are especially useful to identify if you are using the outdated TLS versions. To minimize your risk, you can self-identify if you have any connections using TLS 1.0 or 1.1. What should you do to prepare for this update? We have a video presentation available on this project from AWS re:Inforce 2022 called ‘Uplifting AWS service API data protection to TLS 1.2+: After June 28, 2023, AWS will update our API endpoint configuration to remove TLS 1.0 and TLS 1.1, even if you still have connections using these versions. If you are one of the AWS customers who may be impacted, we will notify you on your AWS Health Dashboard, and by email. Before making these potentially breaking changes, we monitor for connections that are still using TLS 1.0 or TLS 1.1. To minimize the availability impact of requiring TLS 1.2, AWS is continuing to rollout the changes on an endpoint-by-endpoint basis. When connecting to AWS API endpoints, your client software negotiates its preferred TLS version, and AWS uses the highest mutually agreed upon version. It is important to understand that you already have control over the TLS version used when connecting. If you are one of the customers still using TLS 1.0 or 1.1, then you must update your client software to use TLS 1.2 or later to maintain your ability to connect. If you are using earlier application versions, or have not updated your development environment since before 2014, you will likely need to update. You are almost certainly already using TLS 1.2 or later if your client software application was built after 2014 using an AWS Software Development Kit (AWS SDK), AWS Command Line Interface (AWS CLI), Java Development Kit (JDK) 8 or later, or another modern development environment. If you are one of the more than 99% of AWS customers who are already using TLS 1.2 or later, you will not be impacted by this change. Now is the right time to retire TLS 1.0 and 1.1, because increasing numbers of customers have requested this change to help simplify part of their regulatory compliance, and there are fewer and fewer customers using these older versions. Furthermore, we have active mitigations in place that help protect your data for the issues identified in these older versions. We have continued AWS support for TLS versions 1.0 and 1.1 to maintain backward compatibility for customers that have older or difficult to update clients, such as embedded devices. In this post, we will tell you how to check your TLS version, and what to do to prepare. This update means you will need to use of TLS versions 1.2 or higher for your connections, with a continued gradual rollout that will complete by December 31, 2023. To respond to evolving technology and regulatory standards for Transport Layer Security (TLS), we will be updating the TLS configuration for all AWS service API endpoints to a minimum of version TLS 1.2. We have also added a reference to our new blog post announcing efforts to enable TLS 1.3.Īpril 25, 2023: We’ve updated this blog post to include more security learning resources.Īpril 5, 2023: This post was updated with new references to add the newly recorded Our AWS Supports You | Updating Your Clients to TLS 1.2 session, we added an option for S3 customers to use the Amazon S3 server-access logs to analyze if they are at risk, and lastly we added a link to the AWS Pricing page for further information on associated costs that may be incurred to identify your use of outdated TLS.Īt Amazon Web Services (AWS), we continuously innovate to deliver you a cloud computing environment that works to help meet the requirements of the most security-sensitive organizations. May 23, 2023: This post was revised to indicate that we are continuing to gradually update AWS API endpoints to TLS 1.2 minimum policies between now and December 31, 2023. To avoid a disruption to your AWS workloads, you must update all of your TLS 1.0/ 1.1 software clients no later than 06/28/23. June 1, 2023: This blog post has been updated to add a timeline to clarify the key dates.
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