![]() Script injection (legacy) - CEF versions and earlier are supported (except CEF3 1750). We do not guarantee support for later CEF versions. See our previous blog post about protection against man-in-the-middle phishing attacks.Which CEF versions are supported depends on the approach to exposing CEF applications:Ĭhrome DevTools Protocol - CEF version up to 116 (including minor versions) is supported. The header enables the changes for that particular request. To test manually in Chrome, use ModHeader to set the header. HdrMap.insert(std::make_pair("Google-Accounts-Check-OAuth-Login", "true")) Note: You can add your custom headers in CefRequestHandler#OnBeforeResourceLoad. The following example details how to disable the allowlist in CEF. Add Google-Accounts-Check-OAuth-Login:true to your HTTP request headers.The following steps explain how to disable the allowlist: To test your application, add a specific HTTP header and value to disable the allowlist. To verify whether you'll be affected by the change, test your application for compatibility. ![]() If you're a developer that currently uses CEF for sign-in, be aware that support for this type of authentication ends on January 4, 2021. We do not allow sign-in from browsers based on frameworks like CEF or Embedded Internet Explorer. This includes scripts that automate keystrokes or clicks, especially to perform automatic sign-ins. The browser must not provide automation features. The browser must not use another browser's User-Agent string, such as Chrome or Firefox on that host. The browser must identify itself clearly in the User-Agent when connecting to. You must confirm that your browser does not contain any of the following: The browser must have a reasonably complete implementation of web standards and browser features. Your browser must not do any of the following: The browser must not proxy or alter the network communication. For more details, see our previous blog post. The browser must have JavaScript enabled. ![]() Modern browsers with security updates will continue to be supported. Alternatively, you can use a compatible full native browser for sign-in.įor limited-input device applications, such as applications that do not have access to a browser or have limited input capabilities, use limited-input device OAuth 2.0 flows. If you're an app developer and use CEF or other clients for authorization on devices, use browser-based OAuth 2.0 flows. How to enable sign-in on your embedded framework-based apps using browser-based OAuth 2.0 flows.The information in this document outlines the following: To minimize the disruption of service to our partners, we are providing this information to help developers set up OAuth 2.0 flows in supported user-agents. This block affects CEF-based apps and other non-supported browsers. To protect our users from these types of attacks Google Account sign-ins from all embedded frameworks will be blocked starting on January 4, 2021. MITM presents an authentication flow on these platforms and intercepts the communications between a user and Google to gather the user’s credentials (including the second factor in some cases) and sign in. One form of phishing, known as “ man-in-the-middle”, is hard to detect when an embedded browser framework (e.g., Chromium Embedded Framework - CEF) or another automation platform is being used for authentication. Our security systems automatically detect, alert and help protect our users against a range of security threats. We are always working to improve security protections of Google accounts. Posted by Lillan Marie Agerup, Product Manager
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