ActiveX controls, executable code components run through internet browsers, can enhance website functionality. However, they also pose security risks if not managed properly. Understanding how to control ActiveX installations, especially for standard users, is crucial for maintaining a secure desktop environment. This article explores ActiveX installation, the ActiveX Installer Service (AXIS), and how to manage ActiveX controls effectively.
Understanding ActiveX Control Installation
ActiveX controls employ a straightforward download and execute model. Websites utilize the HTML <object> element with the CODEBASE attribute to specify the control’s location. If the control isn’t installed on the user’s machine, the browser downloads the installation package, verifies its trustworthiness, and prompts the user for installation permission.
While convenient for distributing web application components, this process presents challenges for standard users who often lack the necessary administrative privileges to install per-machine ActiveX controls. This can lead to compatibility issues, particularly when transitioning to a standard user account environment, a common security best practice.
Leveraging the ActiveX Installer Service (AXIS)
The ActiveX Installer Service (AXIS) provides a centralized mechanism for deploying ActiveX controls via Group Policy. This allows administrators to define approved installation sites and configure installation policies for trusted zones.
Two key policy settings govern AXIS:
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Approved Installation Sites for ActiveX Controls: This policy specifies a list of URLs from which ActiveX controls can be installed. Only controls from these approved sites will be allowed to install.
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ActiveX installation policy for sites in Trusted zones: This policy dictates how trusted sites zones are handled regarding ActiveX control installation. It allows for granular control over installation behavior within trusted zones.
When a website attempts to install an ActiveX control, AXIS verifies if the site’s URL is listed in the approved sites or falls within a trusted zone. If the site meets the defined policy requirements, the control is installed. This process ensures that only authorized ActiveX controls are deployed within the organization.
Managing ActiveX for Standard Users
For enhanced security, consider the following strategies when managing ActiveX for standard users:
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Utilize AXIS: Implement AXIS to define approved installation sites and control ActiveX installations through Group Policy. This prevents unauthorized installations by standard users.
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Restrict Trusted Sites: Carefully manage the websites included in trusted zones. Only add sites that are completely trusted and require ActiveX functionality.
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Regularly Review Policies: Periodically review and update AXIS policies to ensure they align with current security requirements and organizational needs.
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Educate Users: Train users to recognize and avoid potentially harmful ActiveX controls. Encourage them to report any suspicious prompts or website behavior.
By effectively managing ActiveX controls, organizations can minimize security risks while ensuring compatibility for essential web applications. Leveraging AXIS and implementing robust security policies are crucial steps in maintaining a secure and productive computing environment.
