Secure Browser Standard Service
The Citrix Secure Browser Standard Service (called Secure Browser Service throughout this article) is delivered within Citrix Cloud. This service protects the corporate network from browser based attacks by isolating web browsing. It delivers consistent, secure remote access to internet hosted web applications, with no need for user device configuration. Administrators can rapidly roll out secure browsers, providing instant time-to-value. By isolating internet browsing, IT administrators can offer end users safe internet access without compromising enterprise security.
Users log on with Citrix Receiver and can open web apps in the configured web browser. The website does not directly transfer any browsing data to or from the user device, so the experience is secure.
The Secure Browser Service can publish secure browsers for use with:
- Unauthenticated external web apps. Although typically not recommended, unauthenticated external web apps might be used for a simple proof of concept.
- Authenticated external web apps. Publishing authenticated external web apps requires a resource location containing at least one Cloud Connector (two or more are recommended). For details, see Citrix Cloud Connector.
The service also offers:
- Integration of published apps with on-premises StoreFront.
- Simple URL whitelisting for security.
- Usage monitoring.
- Controls for clipboard use, printing, and kiosk mode.
To get started, you can request a 30-day trial of the Secure Browser Service.
- Sign in to Citrix Cloud. If you don’t have an account, see Sign up for Citrix Cloud.
In the Secure Browser Service tile, click Request Trial.
- In a few moments, you’ll receive an email (the email associated with your Citrix Cloud account). Click the Sign in link in the email.
After you’re in Citrix Cloud again, click Manage on the Secure Browser Service tile.
On the Welcome to Secure Browser page, click Let’s Get Started. You’re guided to publish your first secure browser.
For information about purchasing the Secure Browser Service, click How to Buy on the Citrix Cloud home page.
Publish a secure browser
If you haven’t published a secure browser yet, begin with step 3.
- If you’re not already in Citrix Cloud, sign in. In the Secure Browser Service tile, click Manage.
- On the Manage tab, click Publish a Secure Browser.
Select the type of secure browser to publish: external unauthenticated (default) or external authenticated. Then click Continue.
Enter the name and start URL. Select the region and then click Publish. When the publishing completes, the Manage tab lists the browser you published.
Use the Citrix Cloud Library to add subscribers (users) to the secure browser you created. Click the right arrow at the end of the row to expand a details pane containing a link to the Library.
- When you click that link, you are guided to the Library display containing your secure browser. Click the ellipsis on the tile containing the secure browser and click Manage Subscribers. For information about adding subscribers, see Assigning users and groups to service offerings using Library.
Integrate with your on-premises StoreFront
XenApp and XenDesktop customers with an on-premises StoreFront can easily integrate with the Secure Browser Service to provide the following benefits:
- Aggregate your published secure browsers with your existing XenApp and XenDesktop apps for a unified store experience.
- Use native Citrix Receivers for enhanced end user experience.
- Strengthen security for Secure Browser launches by using your existing multifactor authentication solution integrated with your StoreFront.
For details, see CTX230272 and the StoreFront configuration documentation.
Manage published secure browsers
The Manage tab lists the published secure browsers. To access management tasks, click the ellipsis at the end of an entry’s row, and then select the task.
If you select a menu entry, and then decide not to change anything, cancel the selection by clicking the X outside the dialog box.
Time-out settings include:
- Idle Timeout: The number of minutes a session can remain idle before it is ended due to inactivity.
- Idle Warning Time: The number of minutes before ending a session that a warning message is sent to the user.
For example, if you set an idle timeout of 20 and an idle warning time of 5, a message will be sent to the user if there is no activity in the session for 15 minutes (20 minus 5). If the user does not respond, the session will end five minutes later.
When you’re done, click OK.
Settings on the policies page control the following:
- Clipboard: Disabling the clipboard prevents copy and paste operations to and from the remote session. (The Clipboard button is removed from the Citrix Receiver toolbar.) By default, this setting is disabled.
- Printing: When you enable printing, the remote webpage can be saved as a PDF and transferred to the user’s device. The user can then press Ctrl-P and select the Citrix PDF printer. By default, this setting is disabled.
- Non-kiosk: Enabling non-kiosk mode restores the interface to the remote browser. The user can then access the address bar and create multiple tabs and windows. (Disabling non-kiosk mode removes the remote browser’s navigation controls and address bar.) By default, this setting is enabled (non-kiosk mode is on).
When you’re done, click OK.
Use the whitelists task to restrict users to visiting only whitelisted URLs within their published Secure Browser session. This feature is available for external authenticated web apps.
Enter whitelist entries in the form hostname:port number. Specify each entry on a new line. Asterisks are supported as wildcards. Browser requests must match at least one entry in the whitelist.
For example, to set
http://example.com as a whitelisted URL:
example.com:*allows connection to this URL from any port.
example.com:80allows connection to this URL only from port 80.
*:*allows access to this URL from any port and from any links to other URLs and ports. The . format allows access to all external web apps from the published app. This format is the default setting for the external web apps URL whitelist field.
When you’re done, click OK.
Use the Edit task to change the name, start URL, or region of a published browser. When you’re done, click Publish.
Use the Delete task to remove a published secure browser. When you select this task, you’re prompted to confirm the deletion.
The Usage tab shows the:
- Number of initiated sessions
- Number of hours used
To create a spreadsheet containing usage details, click Export to CSV and select a timeframe.
Technical security overview
Secure Browser Service is a SaaS product managed and operated by Citrix. It allows access to web applications via an intermediate web browser hosted in the cloud.
The Citrix Secure Browser Service consists of web browsers running on Virtual Delivery Agents (VDAs) along with the management console used to manage and connect users to these VDAs. Citrix Cloud manages the operation of these components, including the security and patching of operating systems, web browsers, and Citrix components.
While using Secure Browser Service, hosted web browsers may track user’s browsing history and perform caching of HTTP requests. Citrix uses mandatory profiles and ensures that this data is deleted when the browsing session ends.
Secure Browser Service is accessed with an HTML5-compatible web browser. The service does not provide any downloadable clients. All traffic between the browser being used and cloud service is encrypted using industry-standard TLS encryption. Secure Browser supports TLS 1.0, 1.1, and 1.2.
Secure Browser is used to deliver web applications owned by the customer or a third party. The owner of the web application is responsible for its security, including patching the web server and application against vulnerabilities.
Security of the traffic between Secure Browser and the web application depends on the encryption settings of the web server. To protect this traffic as it flows over the Internet, administrators should publish HTTPS URLs.
See the following resources for additional security information:
Citrix Security site: http://www.citrix.com/security Citrix Cloud documentation: Secure Deployment Guide for the Citrix Cloud Platform
For developers: Preview API for Secure Browser Service