4/10/2023 0 Comments Bitwarden free review![]() When the Bitwarden extension determines to be on a page for which a user has saved credentials, it can offer to fill in the respective login fields. Bitwarden auto-fill behaviorĪs mentioned before, the way the Bitwarden browser extension handles iframes raised interest and warranted a closer look. embedding a sensitive web resource from a different origin in an iframe and then accessing its content. This isolation is critical as it prevents web pages from e.g. Visual representation of the same-origin policy It is considered a significant security concept and is implemented in all major browsers. This is defined by the Same-origin Policy which prevents arbitrary cross-domain access. However, the browsing context of an iframe element is isolated from the context of the parent page or other pages from a different origin. ![]() embedding map data within a web application. The inline frame elementĪccording to the Mozilla HTML documentation the HTML element represents a nested browsing context, embedding another HTML page into the current one.Ī popular use-case is e.g. To understand why this is a problem, it’s important to have a basic understanding of what iframes are. ![]() While evaluating the behavior of Bitwarden, a popular password manager browser extension, Flashpoint’s Vulnerability Research team noticed that embedded iframes in a web page were handled in an atypical manner. Well, things aren’t always easy and sometimes odd web designs require special treatment. They should be entered into the validated login form and nowhere else. A browser extension that provides this functionality clearly needs to be aware of where it enters the saved user credentials. ![]() The latter allows you to conveniently log into your web accounts with only a few clicks. Password managers can have many features such as complex password generation, syncing across multiple devices, and integration into browsers as an extension. The idea behind a password manager is that it securely stores the credentials for many of your accounts and requires the user to only remember one password (or is configured to unlock via biometric authentication). Password manager solutions are among many recommendations to keep access to your accounts secure.
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