FIREWALL SECURITY ASSESSMENT
Assess your Firewall Configuration against security issues that could affect your organisation negatively, leading to information exposure or breach of data.
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What is Firewall security assessment?
A firewall security review, also known as firewall ruleset review or risk assessment, is aimed at finding weaknesses in a device’s configuration, rulesets, management and compliance.
In this cloud era, firewalls are very much a vital component of network security architecture. Our firewall security review helps you to understand the weak areas that must be reviewed to limit the exposure to your systems. Assessing the firewall configuration for security configuration issues, vulnerabilities, management or user oversights that when exploited could lead to a breach of network.
Multiple different types of firewalls are used by companies to protect their data and systems. We have WAF (Web Application Firewalls), Application level gateways, Network firewall with stateful inspections, ‘virtual’ firewalls and cloud firewalls.

Benefits of a secure Firewall configuration
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Identify and limit exposure to your internal systems against evolving threats
- Identify weaknesses in configuration and management procedures
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Service quality underpins everything we do
- Validate your change management/ control process
- PCI DSS, ISO 27001, GDPR Compliance support
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Common Security Vulnerabilities
Insecure Configuration
Firmware versions, management protocols configuration, file tranfers/remote administration protocols
Insecure Logging & Monitoring Controls
Logging and monitoring controls are reviewed to identify flaws in event collection, storage, analysis and threat identification.
Large Attack Surface
Either service provider or customer’s IT team have temporary changes, large/excessive attack surfaces been allowed.
Rulesets
Auditing of firewall rule bases often shows the presence of noise (unnecessary broadcast protocols), duplicate rules, temporary rules, comments, use of ANY/large rules
Encryption Flaws
Configuration and use of encryption methods for HTTPS, SSH, VPN transformations (in case of a VPN), data at rest and in transit.
Administrative Restrictions
Restrictions on administrative and management interfaces internally (internal network/DMZ) and externally (over the internet)
Authentication & Authorization
Authentication and authorization mechanisms responsible for user authentication, internal integrations (RADIUS/AD/etc), interface restrictions and authorizations
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Frequently Asked Questions about Firewall Security Assessments
What type of Firewalls can you review?
We welcome all major Firewalls and have vast experience of reviewing WAFs (Imperva, IBM, Mod sec), Cloud firewalls, CheckPoints to traditional Cisco devices, VPN concentrators and Small business ranges such as Watchguard, Sonicwall.
When do you conduct Firewall security reviews?
Firewall reviews can be conducted as an ad-hoc exercise or as part of cyber health checks. Should you wish to read further about pen testing , our in-depth blog article on penetration testing is an excellent source.
Why do you carry out Firewall security assessment?
Configuration and network traffic allowed through the firewall should be in line with functional requirements of the business.
Whether it’s business as usual review or after changes, it’s important to find out weaknesses in your firewall configuration and rulebase to identify gaps. These gaps could aid an attacker to initiate unauthorised connections to outside systems in order to exfiltrate data, set up command and control channels or other malicious actions.
Our IT service provider manages our Firewall.
It is common setup to use external partners for IT needs of a business. We work with you and your third-party vendors to ensure they provide a secure service and are aware of risks to the firewall or managed devices.
Is Firewall review disruptive to our environment?
No. There is no active attack activity carried out against the device, therefore, it is a completely manual and often passive task (where configuration is provided in a file).
What about timescales and costs?
A firewall security assessment does not take more than couple of days, based on the firewall functionality and ruleset size. Costs are generally calculated based on the day rate based activity needed to perform this review.
Do you perform risk remediation?
Firewall risk remediation is sometimes a complex process due to the specialist security skill-set needed for IT teams.
Optionally, we provide remediation consultancy to ensure all agreed findings are mitigated in line with best security practices.
Firewall Penetration Testing Methodology
Customer Business Insight
Services Proposal
Execution and Delivery
Data Analysis & Reporting
Debrief & Support
Our Assessment Services
Network & Infrastructure Penetration Testing
- Protect your business against evolving network & infrastructure threats
- Check services, patching, passwords, configurations & hardening issues
- Internal, external, network segregation & device reviews
- PCI DSS, ISO 27001, GDPR Compliance support
- Helps shape IT strategy & investments
Web Application & API Pen Testing
- Assess real-world threats to web applications
- Validate secure design best practices against OWASP Top 10
- Timely check to avoid common pitfalls during development
- Ensure strong authentication, authorisation, encryption mechanisms
- Find loopholes to avoid data leakage or theft
Mobile Penetration Testing
- Assess real-world mobile app security vulnerabilities
- Validate secure design & configuration best practices
- Increased flexibility and productivity of users through secure mobile offerings
- Ensure strong mobile app authentication, authorisation, encryption mechanisms
- Find mobile app or device loopholes to avoid data leakage or theft
- PCI DSS, ISO 27001, Compliance Support
Cloud Penetration Testing
- Better visibility on cloud process aligning
- Secure validation of internal and third party integrations
- Support ever changing regulatory/compliance requirements
- Ensure strong authentication, authorisation, encryption mechanisms
- Demonstrate data security commitment
- Less is more – reduced costs, servers and staff
Digital Attack Surface Analysis
- Attack surface analysis to identify high risk areas and blind spots
- Improve your security team’s efficiency
- Streamline your IT spends
- Lower Risks and Likelihood of Data Breaches