The Azure Podcast

Episode 333 - TLS 1.0 Deprecation


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Candace Jackson, a Senior PM in the Azure Security team, give us an update on the effort to remove the use of TLS 1.0 from applications in Azure.   Media file:  https://azpodcast.blob.core.windows.net/episodes/Episode333.mp3 Resources: links: https://www.microsoft.com/en-us/download/details.aspx?id=55266 https://docs.microsoft.com/en-us/dotnet/framework/network-programming/tls Connection logging - This help identify what cipher suites and protocols are negotiated during a successful handshake IIS https://cloudblogs.microsoft.com/microsoftsecure/2017/09/07/new-iis-functionality-to-help-identify-weak-tls-usage/ Nginx http://nginx.org/en/docs/http/ngx_http_ssl_module.html#variables https://serverfault.com/questions/620123/how-can-i-let-nginx-log-the-used-ssl-tls-protocol-and-ciphersuite Apache - http://httpd.apache.org/docs/2.2/mod/mod_ssl.html#envvars http://httpd.apache.org/docs/2.2/mod/mod_ssl.html#logformats  Some resource specific documenation that shows how to configure protocol and cipher suite usage https://docs.microsoft.com/en-us/azure/app-service/environment/app-service-app-service-environment-custom-settings#disable-tls-10-and-tls-11 Blog: https://blogs.msdn.microsoft.com/appserviceteam/2018/04/17/app-service-and-functions-hosted-apps-can-now-update-tls-versions/ https://docs.microsoft.com/en-us/azure/app-service/app-service-web-tutorial-custom-ssl#enforce-tls-1112 https://docs.microsoft.com/en-us/azure/cloud-services/applications-dont-support-tls-1-2   Other updates: Live Video Analytics now in public preview Updated: June 01, 2020 Live Video Analytics (LVA) on IoT Edge is now in public preview. It is a platform to capture, record, and analyze live video and publish the results (video and/or video analytics), for you to build intelligent video applications. You can use LVA for a number of use cases across industries such as retail, healthcare, and transportation. You can bring any custom AI by plugging in video analysis edge modules, whether they are Cognitive Services containers, custom edge modules built with open source machine learning models, or custom models trained with a customer’s own data. You can also combine video analysis with other business data to make smarter business decisions. LVA integrates with a number of Azure services (in the cloud and/or the edge), such as Stream Analytics on IoT Edge, Cognitive Services on IoT Edge, Media Services, Event Hub, and Cognitive Services. From        NOW AVAILABLE CNI security vulnerability in older AKS clusters and mitigation steps Updated: June 01, 2020 A security vulnerability has been identified in the container networking implementation (CNI) in CNI plugin versions v0.8.6 and older that may affect older AKS clusters. Details An AKS cluster configured to use an affected container networking implementation is susceptible to man-in-the-middle (MitM) attacks. By sending “rogue” router advertisements, a malicious container can reconfigure the host to redirect part or all of the IPv6 traffic of the host to the attacker-controlled container. Even if there was no IPv6 traffic before, if the DNS returns A (IPv4) and AAAA (IPv6) records, many HTTP libraries will try to connect via IPv6 first then fallback to IPv4, giving an opportunity to the attacker to respond. This vulnerability has been given an initial severity of Medium with a score of 6.0. Vulnerability analysis and verification All AKS clusters created or upgraded with a Node Image Version later or equal than “2019.04.24” are not vulnerable, as they set net.ipv6.conf.all.accept_ra to 0 and enforce TLS with proper certificate validation. Clusters created or last upgraded before that date are susceptible to this vulnerability. You can verify if your current Node Image
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The Azure PodcastBy Cynthia Kreng, Kendall Roden, Cale Teeter, Evan Basalik, Russell Young and Sujit D'Mello

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