Enhancing Security: Managing Browser and Email Client Plugins with GPO in Active Directory

Posted on September 3, 2024 by Brent Huston

Controlling and managing plugins across various browsers and email clients is crucial for maintaining a secure enterprise environment. This blog post will explore how to effectively manage these plugins using Group Policy Objects (GPOs) in an Active Directory (AD) setting, aligning with the Center for Internet Security (CIS) Critical Security Controls Version 8.

The Importance of Plugin Management

CIS Control 2: Inventory and Control of Software Assets emphasizes the need to actively manage all software on the network. This includes plugins for browsers like Internet Explorer, Edge, Chrome, Firefox, and email clients such as Outlook, which can be potential vectors for security breaches if left unmanaged.

Implementing Plugin Management with GPO

Here’s a comprehensive guide to manage plugins using Group Policy across different browsers:

Create a New GPO: In the Group Policy Management Console, create a new GPO or edit an existing one.
Configure Internet Explorer Settings:
- Navigate to User Configuration > Policies > Administrative Templates > Windows Components > Internet Explorer
- Enable “Prevent running of extensions not listed in the Add-on List”
- Add approved extensions to the “List of Approved Add-ons”
Manage Microsoft Edge Settings:
- Go to Computer Configuration > Policies > Administrative Templates > Microsoft Edge
- Enable “Control which extensions cannot be installed”
- Use “Allow specific extensions to be installed” to whitelist approved extensions
Configure Google Chrome Settings:
- Navigate to Computer Configuration > Policies > Administrative Templates > Google > Google Chrome > Extensions
- Enable “Configure extension installation whitelist”
- Add the extension IDs of approved extensions to the whitelist
Manage Mozilla Firefox (requires additional setup):
- Firefox requires the Firefox ADMX templates to be added to your Group Policy Central Store
- Once added, go to Computer Configuration > Policies > Administrative Templates > Mozilla > Firefox
- Enable “Extensions to Install” and specify allowed extensions
Configure Email Client Plugins (Outlook):
- Go to User Configuration > Policies > Administrative Templates > Microsoft Outlook > Security
- Enable “Disable all COM add-ins”
- Use the “List of Managed Add-ins” to specify allowed add-ins
Apply GPO to Relevant OUs: Link the GPO to the appropriate Organizational Units (OUs) containing user accounts and computer objects.
Test and Monitor: Apply the GPO to a test group before rolling out organization-wide. Monitor for any issues and adjust as necessary.

Aligning with CIS Controls

This comprehensive approach aligns with several CIS Controls Version 8:

Control 2: Inventory and Control of Software Assets
Control 4: Secure Configuration of Enterprise Assets and Software
Control 7: Continuous Vulnerability Management
Control 12: Network Infrastructure Management

By implementing these policies across various browsers and email clients, you’re taking significant steps towards a more secure and standardized environment.

Additional Considerations

Browser Diversity: Be aware that different browsers may require different GPO settings. Ensure your policies cover all browsers used in your organization.
Third-party Management Tools: For more granular control, especially in environments with multiple browsers, consider using third-party extension management tools that integrate with GPO.
Regular Updates: Browser vendors frequently update their GPO capabilities. Stay informed about new policy options and adjust your configurations accordingly.
User Education: Implement a policy to educate users about the risks of unapproved plugins and the process for requesting new plugins if needed for work purposes.

Regular Review and Updates

Remember to regularly review and update your plugin management policies. New plugins may need to be added to the approved list, while others may need to be removed due to emerging security concerns or obsolescence.

Conclusion

Managing plugins across various browsers and email clients through GPO is an effective way to enhance your organization’s security posture. It provides centralized control, reduces attack surfaces, and helps maintain compliance with cybersecurity best practices across diverse software environments.

Need assistance implementing this multi-browser approach or other security controls? The experts at MicroSolved are here to help. Contact us today to strengthen your organization’s cybersecurity defenses and ensure compliance with industry standards like the CIS Critical Security Controls.

* AI tools were used as a research assistant for this content.

5 Practical Strategies for SMBs to Tackle CIS CSC Control 16

Posted on August 26, 2024 by Brent Huston

Today we’re diving into the world of application software security. Specifically, we’re talking about implementing CIS CSC Version 8, Control 16 for small to mid-sized businesses. Now, I know what you’re thinking – “Brent, that sounds like a handful!” But don’t worry, I’ve got your back. Let’s break this down into bite-sized, actionable steps that won’t break the bank or overwhelm your team.

1. Build a Rock-Solid Vulnerability Response Process

First things first, folks. You need a game plan for when (not if) vulnerabilities pop up. This doesn’t have to be fancy – start with the basics:

Designate a vulnerability response team (even if it’s just one person to start)
Set up clear reporting channels
Establish a communication plan for affected parties

By nailing this down, you’re not just putting out fires – you’re learning where they start. This intel is gold for prioritizing your next moves in the Control 16 implementation.

2. Embrace the Power of Open Source

Listen up, because this is where it gets good. You don’t need to shell out big bucks for fancy tools. There’s a treasure trove of open-source solutions out there that can help you secure your code and scan for vulnerabilities. Tools like OWASP Dependency-Check and Snyk are your new best friends. They’ll help you keep tabs on those sneaky third-party components without breaking a sweat.

3. Get a Grip on Third-Party Code

Speaking of third-party components, let’s talk about managing that external code. I know, I know – it’s tempting to just plug and play. But trust me, a little due diligence goes a long way. Start simple:

Create an inventory of your third-party software (yes, a spreadsheet works)
Regularly check for updates and vulnerabilities
Develop a basic process for vetting new components

Remember, you’re only as strong as your weakest link. Don’t let that link be some outdated library you forgot about.

4. Bake Security into Your Development Process

Here’s where the rubber meets the road, folks. The earlier you bring security into your development lifecycle, the less headache you’ll have down the line. Encourage your devs to:

Use linters for code quality
Implement static application security testing (SAST)
Conduct threat modeling during design phases

It might feel like extra work now, but trust me – it’s a lot easier than trying to bolt security onto a finished product.

5. Keep Your Team in the Know

Last but not least, let’s talk about your most valuable asset – your people. Security isn’t a one-and-done deal; it’s an ongoing process. Keep your team sharp with:

Regular training sessions (they don’t have to be boring!)
Security awareness programs
Informal discussions about recent incidents and lessons learned

You don’t need a big budget for this. There are tons of free resources out there. Heck, you’re reading one right now!

Wrapping It Up

Remember, implementing Control 16 isn’t about perfection – it’s about progress. Start small, learn as you go, and keep improving. Before you know it, you’ll have a robust application security program that punches way above its weight class.

But hey, if you’re feeling overwhelmed or just want some expert guidance, that’s where we come in. At MicroSolved, we’ve been in the trenches with businesses of all sizes, helping them navigate the complex world of cybersecurity. We know the challenges SMBs face, and we’re here to help.

Need a hand implementing Control 16 or just want to bounce some ideas around? Don’t hesitate to reach out to us at MicroSolved (info@microsolved.com ; 614.351.1237). We’re always happy to chat security and help you build a tailored strategy that works for your business. Let’s make your software – and your business – more secure together.

Stay safe out there!

* AI tools were used as a research assistant for this content.

How to Checklist for Testing Cloud Backups of Systems

Posted on August 7, 2024 by Brent Huston

A common question that our clients ask is how to actually test cloud backups. We hope this short methodology will help you meet this control.

How to Checklist for Testing Cloud Backups of Systems

1. Preparation

Identify critical systems and data that require backup.
Establish a regular backup schedule and automation process.
Ensure access to necessary credentials and permissions for testing.

2. Backup Verification

Automated Verification:

Configure automated checks to validate backup integrity immediately after creation.
Ensure notifications are set up for any verification failures.

Manual Verification:

Periodically perform manual checks to verify the integrity of backups.
Compare backup files to original data to ensure consistency.

3. Restore Testing

File-Level Restore:

Select a few individual files and restore them to a different location.
Verify that the restored files match the original files.

Database Restore:

Choose a database to restore and perform the restore operation.
Validate the database’s functionality and integrity post-restore.

Full System Restore:

Perform a full system restore on a test environment.
Verify that the system is fully operational and all data is intact.

4. Checksum Validation

Generate checksums for critical files before backup.
After backup, generate checksums for the backup files.
Compare pre-backup and post-backup checksums to ensure no data corruption.

5. Versioning and Retention

Verify that multiple backup versions are being stored.
Test restoring from different backup points to ensure versioning works.
Check that retention policies are properly managing backup storage.

6. Encryption and Security

Confirm that backups are encrypted during transit and at rest.
Verify that encryption keys are securely stored and regularly updated.
Test decryption processes to ensure data can be accessed when needed.

7. Monitoring and Alerts

Ensure monitoring systems are actively tracking backup processes.
Test alert notifications by simulating backup failures.
Review alert logs regularly to ensure prompt response to issues.

8. Documentation and Training

Maintain up-to-date documentation of all backup and restore procedures.
Conduct training sessions for relevant personnel on backup processes and protocols.
Ensure all team members have access to the latest documentation.

9. Disaster Recovery Testing

Integrate backup testing into comprehensive disaster recovery drills.
Simulate various disaster scenarios to evaluate the effectiveness of backup and restore processes.
Document the results and identify areas for improvement.

10. Review and Improvement

Schedule regular reviews of backup strategies and processes.
Stay informed about new technologies and best practices in cloud backup.
Implement improvements based on review findings and technological advancements.

By following this checklist, you can systematically test and ensure the reliability, security, and functionality of your cloud backups.

* AI tools were used as a research assistant for this content.

Optimizing DNS and URL Request Logging

Posted on March 25, 2024 by Brent Huston

Organizations aiming to enhance their cybersecurity posture should consider optimizing their processes around DNS and URL request logging and review. This task is crucial for identifying, mitigating, and preventing cyber threats in an increasingly interconnected digital landscape. Here’s a practical guide to help organizations streamline these processes effectively.

1. Establish Clear Logging Policies
Define what data should be collected from DNS and URL requests. Policies should address the scope of logging, retention periods, and privacy considerations, ensuring compliance with relevant laws and regulations like GDPR.

2. Leverage Automated Tools for Data Collection
Utilize advanced logging tools that automate the collection of DNS and URL request data. These tools should not only capture the requests but also the responses, timestamps, and the initiating device’s identity. Integration with existing cybersecurity tools can enhance visibility and threat detection capabilities.

3. Implement Real-time Monitoring and Alerts
Set up real-time monitoring systems to analyze DNS and URL request logs for unusual patterns or malicious activities. Automated alerts can expedite the response to potential threats, minimizing the risk of significant damage.

4. Conduct Regular Audits and Reviews
Schedule periodic audits of your DNS and URL logging processes to ensure they comply with your established policies and adapt to evolving cyber threats. Audits can help identify gaps in your logging strategy and areas for improvement.

5. Prioritize Data Analysis and Threat Intelligence
Invest in analytics platforms that can process large volumes of log data to identify trends, anomalies, and potential threats. Incorporating threat intelligence feeds into your analysis can provide context to the data, enhancing the detection of sophisticated cyber threats.

6. Enhance Team Skills and Awareness
Ensure that your cybersecurity team has the necessary skills to manage and analyze DNS and URL logs effectively. Regular training sessions can keep the team updated on the latest threat landscapes and analysis techniques.

7. Foster Collaboration with External Partners
Collaborate with ISPs, cybersecurity organizations, and industry groups to share insights and intelligence on emerging threats. This cooperation can lead to a better understanding of the threat environment and more effective mitigation strategies.

8. Streamline Incident Response with Integrated Logs
Integrate DNS and URL log analysis into your incident response plan. Quick access to relevant log data during a security incident can speed up the investigation and containment efforts, reducing the impact on your organization.

9. Review and Adapt to Technological Advances
Continuously evaluate new logging technologies and methodologies to ensure your organization’s approach remains effective. The digital landscape and associated threats are constantly evolving, requiring adaptive logging strategies.

10. Document and Share Best Practices
Create comprehensive documentation of your DNS and URL logging and review processes. Sharing best practices and lessons learned with peers can contribute to a stronger cybersecurity community.

By optimizing DNS and URL request logging and review processes, organizations can significantly enhance their ability to detect, investigate, and respond to cyber threats. A proactive and strategic approach to logging can be a cornerstone of a robust cybersecurity defense strategy.

* AI tools were used in the research and creation of this content.

High-Level Project Plan for CIS CSC Implementation

Posted on July 6, 2023 by Brent Huston

Overview:

Implementing the controls and safeguards outlined in the Center for Internet Security (CIS) Critical Security Controls (CSC) Version 8 is crucial for organizations to establish a robust cybersecurity framework. This article provides a concise project plan for implementing these controls, briefly describing the processes and steps involved.

Plan:

1. Establish a Governance Structure:

– Define roles and responsibilities for key stakeholders.

– Develop a governance framework for the implementation project.

– Create a project charter to outline the project’s scope, objectives, and timelines.

2. Conduct a Baseline Assessment:

– Perform a comprehensive assessment of the organization’s existing security posture.

– Identify gaps between the current state and the requirements of CIS CSC Version 8.

– Prioritize the controls that need immediate attention based on the assessment results.

3. Develop an Implementation Roadmap:

– Define a clear timeline for implementing each control, based on priority.

– Identify the necessary resources, including personnel, tools, and technologies.

– Establish milestones for monitoring progress throughout the implementation process.

4. Implement CIS CSC Version 8 Controls:

– Establish secure configurations for all systems and applications.

– Enable continuous vulnerability management and patching processes.

– Deploy strong access controls, including multi-factor authentication and privilege management.

5. Implement Continuous Monitoring and Incident Response:

– Establish a comprehensive incident response plan.

– Deploy intrusion detection and prevention systems.

– Develop a continuous monitoring program to identify and respond to security events.

6. Engage in Security Awareness Training:

– Train employees on security best practices, including email and social engineering awareness.

– Conduct periodic security awareness campaigns to reinforce good cybersecurity hygiene.

– Provide resources for reporting suspicious activities and encouraging a culture of security.

Summary:

Implementing the controls and safeguards outlined in CIS CSC Version 8 requires careful planning and execution. By establishing a governance structure, conducting a baseline assessment, developing an implementation roadmap, implementing the controls, continuous monitoring, and engaging in security awareness training, organizations can strengthen their security posture and mitigate cyber threats effectively. This concise project plan is a starting point for information security practitioners seeking a robust cybersecurity framework.

If you need assistance, get in touch. MSI is always happy to help folks with CIS CSC assessments, control design, or other advisory services.

*This article was written with the help of AI tools and Grammarly.