Network security

Your Network Is the Ground Your Applications Stand On.

Flat networks, forgotten hosts and weak internal controls turn a single foothold into full compromise. Nuclisafe tests external and internal networks for exposure, misconfiguration and the attack paths that let access spread.

What we test

Testing coverage across the attack surface

Coverage is tailored to your application. The areas below are assessed where applicable to the agreed scope.

External Network Penetration TestingInternal Network Penetration TestingFirewall ReviewNetwork Segmentation ReviewVPN SecurityActive Directory Attack PathsWireless SecurityMisconfiguration DiscoveryPatch & Vulnerability ScanningLateral Movement TestingPrivilege EscalationService & Protocol Hardening

Common weaknesses

Issues we frequently look for

Flat Network Segmentation

Missing or bypassable segmentation letting one compromised host reach sensitive systems.

Active Directory Attack Paths

Delegation, ACL and credential-reuse chains that lead from a standard user to domain-level access.

Exposed Internal Services

Management interfaces, databases and legacy protocols reachable from untrusted networks.

Weak VPN & Remote Access

Missing multi-factor authentication, over-broad access and outdated remote access appliances.

Unpatched Hosts

Missing patches on servers, appliances and network devices with known exploitable issues.

Wireless Weaknesses

Weak authentication, rogue access points and guest networks with routes into internal systems.

How we test

A manual-first testing approach

  • Host, service and protocol discovery across the authorized external and internal ranges.
  • Authenticated and unauthenticated vulnerability validation to remove false positives.
  • Segmentation and firewall rule testing between defined network zones.
  • Active Directory review covering attack paths, credential exposure and privilege escalation.
  • Controlled lateral movement testing to demonstrate realistic blast radius within scope.

Aligned frameworks

NIST SP 800-115PTESMITRE ATT&CK

Assessments are mapped to these industry frameworks and testing methodologies. This does not imply certification by, or partnership with, any of these organisations.

Example tools

NmapNessusMetasploitBloodHoundWiresharkNuclei

Illustrative only — tooling is selected per engagement and is not a guarantee of full coverage. Manual testing remains central to every assessment.

Deliverables

What you receive

Executive Summary

Business-level view of risk posture, key themes and priorities for leadership and stakeholders.

Technical Report

Detailed findings with affected endpoints, reproduction steps, evidence and references.

Proof of Concept

Validated demonstration of exploitability within the authorized scope, so nothing is theoretical.

Risk Rating

Severity based on impact and likelihood, supporting prioritization and remediation planning.

Remediation Guidance

Specific, actionable fix recommendations written for the developers who will implement them.

Retest Report

Post-fix verification confirming which findings are closed and which need further work.

Ready to start scoping?

Every assessment is scoped according to application complexity, attack surface and testing requirements.