Lastpass Free Password Ma

What This Extension Does

The LastPass: Free Password Manager extension appears to be a password management tool, allowing users to securely store and manage their login credentials across various devices.

Permissions Explained

• scripting: Allows the extension to run scripts in web pages.

+ Standard for extensions that need to interact with web content.

• tabs: Enables the extension to access and manipulate browser tabs.

+ Standard for extensions that need to interact with the user's browsing experience.

• notifications: Permits the extension to display notifications to the user.

+ Standard for extensions that need to communicate important information to the user.

• contextMenus: Allows the extension to create custom context menus in the browser.

+ Unusual; typically used by extensions that provide advanced features or customization options.

• storage: Enables the extension to store and retrieve data locally on the user's device.

+ Standard for extensions that need to persist data across sessions.

• unlimitedStorage: Grants the extension unlimited storage capacity, which may be unusual for a password manager.

+ Unusual; typically used by extensions that require large amounts of storage or have specific caching needs.

• webNavigation: Allows the extension to observe and interact with web page navigation events.

+ Standard for extensions that need to monitor or modify web page behavior.

• webRequest: Enables the extension to intercept and manipulate HTTP requests made by the browser.

+ Unusual; typically used by extensions that require advanced network monitoring or modification capabilities.

• webRequestAuthProvider: Allows the extension to authenticate with servers using credentials provided by the user.

+ Standard for extensions that need to interact with secure web services.

• offscreen: Permits the extension to run in the background, even when the browser is not visible.

+ Unusual; typically used by extensions that require continuous monitoring or execution.

• alarms: Enables the extension to schedule and execute tasks at specific times.

+ Standard for extensions that need to perform periodic tasks or reminders.

• privacy: This permission is flagged as critical, but its description is unclear. It may be related to data collection or sharing practices.

+ Unusual; typically used by extensions that require advanced data handling capabilities.

• clipboardWrite: Allows the extension to write data to the user's clipboard.

+ Standard for extensions that need to provide convenient copying and pasting functionality.

• http://*/* and https://*/*: These permissions grant the extension access to all HTTP and HTTPS requests made by the browser, respectively.

+ Unusual; typically used by extensions that require advanced network monitoring or modification capabilities.

What We Found in the Code

• [high] Function constructor used — dynamic code execution: This flag suggests that the extension uses a function constructor to execute dynamic code. While this is not inherently malicious, it may indicate that the extension is using a complex or unconventional approach to code execution.
• [medium] innerHTML assignment — potential XSS vector: The use of innerHTML assignments can be a potential cross-site scripting (XSS) vulnerability if untrusted data is being used. However, in this context, it's likely being used for UI rendering purposes and not directly interacting with user-provided input.
• [info] Makes HTTP requests: This flag indicates that the extension makes HTTP requests to various domains. While this is a normal behavior for many extensions, it may be worth investigating further to understand the specific use cases and data being transmitted.
• [medium] Potential data exfiltration pattern: The presence of this flag suggests that the extension may be transmitting data to external servers. However, without more context, it's difficult to determine whether this is a legitimate or malicious behavior.

External Connections

The extension communicates with various domains, including:

• www.w3.org (likely for standards compliance)
• link.lastpass.com, lastpass.com, and accounts.lastpass.com (expected for password management functionality)
• github.com (unexpected; possibly used for development or testing purposes)
• momentjs.com (unexpected; possibly used for date and time formatting)
• www.googleapis.com (expected for Google-related services, such as authentication or data storage)
• udemy.com (unexpected; possibly used for training or educational resources)
• no-such-site.com (likely a typo or placeholder domain)

Things to Consider

Based on the extension's name and description, it appears that LastPass is designed to provide secure password management capabilities. However, some of the permissions declared by the extension seem broader than necessary for its intended purpose.

The presence of webRequest and offscreen permissions may indicate that the extension requires advanced network monitoring or modification capabilities, which could be unusual for a password manager.

Additionally, the use of innerHTML assignments and potential data exfiltration patterns warrant further investigation to ensure that the extension is handling user data securely and transparently.