Penetration Testing
Network Infrastructure Penetration Testing
Every network has a perimeter, and every perimeter has a way in. Whether it's an unpatched service, a weak credential, or a misconfigured device, network infrastructure remains one of the most common entry points for cyber attacks, particularly when security weaknesses go unnoticed.
The risk
Why it matters
Internal networks connect everything: servers, endpoints, critical systems, often with more trust between them than is safe. A single compromised device can become a launchpad for lateral movement across the entire environment. Identifying weak points in that infrastructure before an attacker does is fundamental to limiting how far a breach can spread.
Our approach
Testing combines automated network scanning with manual, attacker-simulated testing across both external and internal network infrastructure to identify exploitable security weaknesses.
What's covered
Scope & deliverables
Assessment Scope
- External-facing infrastructure & services
- Internal network segmentation
- Active Directory & credential security
- Firewall & network device configuration
- Patch management & outdated service exposure
- Network services and protocol security (e.g., DNS, SMB, RDP, SSH)
Deliverables
- Executive summary
- Technical report with CVSS-rated findings
- Attack path analysis and network security observations
- Remediation guidance mapped to each finding
- Optional: One round of post-remediation retesting
Questions
Frequently asked questions
How is Network Infrastructure Penetration Testing different from Cloud Penetration Testing?
Network Infrastructure Penetration Testing focuses on on-premises or traditional network environments, including servers, firewalls, Active Directory, and internal network architecture. Cloud Penetration Testing evaluates cloud-hosted environments such as AWS, Microsoft Azure, and Google Cloud, focusing on cloud-native services, identities, permissions, and cloud-specific security controls. Organizations operating hybrid environments may benefit from both assessments.
Do you test both external and internal networks?
Yes. Engagements can cover external perimeter testing, internal network testing, or both, depending on scope.
Will testing disrupt our network operations?
Testing is designed to be non-disruptive. Any higher-risk actions are flagged and scheduled with your team in advance.
Do you test Active Directory environments?
Yes. Active Directory misconfigurations and privilege escalation paths are a core part of internal network testing.
Do you provide a compliance-ready report?
Reports can be structured to support organizations preparing for compliance initiatives such as PCI DSS, ISO/IEC 27001, SOC 2, and other applicable industry or regulatory requirements.
Go further
Related services
Organizations often pair this engagement with the assessments below for broader coverage.
Cloud Penetration Testing
Testing of AWS, Azure and GCP environments against CIS Benchmarks — IAM, storage permissions, network controls and cloud-native services.
Learn MoreWireless Network Penetration Testing
On-site assessment of Wi-Fi encryption, authentication, rogue access points and guest-to-internal segmentation — the perimeter that extends past your walls.
Learn MoreHost / Configuration Review
A hardening review against CIS benchmarks that catches the misconfigurations, weak defaults and unnecessary services a vulnerability scanner will not flag.
Learn MoreVulnerability Assessment
Structured, repeatable identification of known weaknesses across your environment, with manual validation to cut false positives and prioritise real risk.
Learn More
Request a consultation
Tell us what you need assessed and we'll scope an engagement around it — timelines, safeguards, and deliverables agreed before any testing begins.