Network Penetration
Testing

Simulate real-world attacks against your external perimeter and internal infrastructure. We exploit misconfigurations, weak credentials, and unpatched services to show exactly how far an attacker could reach, with CVSS-scored findings and a free re-test included.

External + Internal + Wireless AD + Domain Escalation Attack Path + CVSS Report Free Re-Test
Network Topology
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Lateral Movement
Kerberoasting
VLAN Hopping
Domain Admin

What We Test on Your Network

Purpose-built attack scenarios for your perimeter, internal network, and Active Directory environment.

Firewall and Perimeter Testing

We probe firewall rules, ACL misconfigurations, and DMZ architecture for bypass opportunities, exposed management interfaces, and overly permissive rulesets.

VPN and Remote Access

We test VPN gateways for weak pre-shared keys, outdated protocols, authentication bypass, and vulnerabilities in remote desktop and SSH jump hosts.

Exposed Services and Ports

We identify and exploit internet-facing services with known CVEs, default credentials, and insecure configurations that provide an initial foothold.

Mail and DNS Infrastructure

We assess mail servers for relay abuse and spoofing risks, and test DNS servers for zone transfer and amplification vulnerabilities.

Cloud-Connected Networks

We test hybrid connectivity, site-to-site VPNs to cloud environments, and identify misconfigured security groups and exposed management ports.

Web Application Proxies

We test reverse proxy configurations, load balancer security, and WAF bypass techniques to reach backend services.

Lateral Movement and Pivoting

From an initial foothold, we simulate attacker movement across segments, exploiting trust relationships, pass-the-hash, and credential reuse.

Privilege Escalation

We identify local privilege escalation paths, misconfigured services, and unpatched kernel vulnerabilities that allow elevation to admin or root.

Database and File Shares

We audit internal databases and file shares for weak authentication, excessive permissions, and sensitive data accessible from compromised hosts.

Wireless Network Testing

We test enterprise Wi-Fi for rogue access points, WPA2/WPA3 weaknesses, EAP bypass, and captive portal abuse that enables network access.

Network Segmentation

We validate VLAN separation, test for VLAN hopping, and assess whether sensitive segments are properly isolated from user networks.

Legacy Systems and Protocols

We identify and exploit outdated systems running SMBv1, Telnet, FTP, and other legacy protocols that expose the network to known attacks.

Kerberoasting and AS-REP Roasting

We identify service accounts with SPNs vulnerable to Kerberoasting, and user accounts with Kerberos pre-auth disabled for AS-REP roasting attacks.

Delegation and Trust Abuse

We assess constrained and unconstrained delegation configurations, cross-domain trusts, and forest trust relationships for escalation paths.

ACL and GPO Misconfigurations

We identify overly permissive ACLs on AD objects, and GPO misconfigurations that enable privilege escalation or persistent access.

Group Membership and Nested Groups

We audit group memberships for excessive privileges, nested group escalation paths, and inactive accounts with privileged access.

Password and Account Policies

We assess password policies for complexity and age requirements, lockout thresholds, and accounts with password-not-required or never-expire flags.

Domain Admin Path Analysis

We map all paths from a compromised user to Domain Admin, identifying the shortest escalation route through group memberships and ACLs.

How We Run a Network Penetration Test

A structured six-phase process aligned with PTES and NIST SP 800-115, from initial scoping through verified remediation.

Phase 01
Scoping and Rules of Engagement

We define IP ranges, testing windows, communication protocols, and escalation procedures. A signed rules of engagement document ensures clarity and safety before testing begins.

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Phase 02
Reconnaissance and Enumeration

We perform port scanning, service fingerprinting, OS detection, and attack surface mapping to build a complete picture of your externally exposed and internal assets.

Phase 03
Vulnerability Identification

We combine automated scanning with manual testing to identify misconfigurations, weak credentials, unpatched services, and known CVEs across all discovered hosts.

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Phase 04
Exploitation and Lateral Movement

We exploit identified vulnerabilities to gain an initial foothold, escalate privileges, and move laterally across the network to demonstrate real-world attack impact.

Phase 05
Post-Exploitation and Impact Analysis

We demonstrate what an attacker could access after compromise, including sensitive data, domain admin privileges, and critical system control, without causing damage.

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Phase 06
Reporting and Free Re-Test

We deliver a CVSS-scored report with attack path diagrams, executive summary, and mapping to compliance frameworks. Once you remediate, we re-test all findings at no additional cost.

Built for Organisations With Real Infrastructure

Enterprises and Data Centres

Organisations with large on-premise or hybrid environments, including data centres, branch networks, and complex Active Directory forests that need comprehensive attack surface validation.

Regulated Industries

Financial services, healthcare, and government organisations requiring PCI-DSS, HIPAA, RBI, or ISO 27001 network testing compliance with documented evidence for auditors.

Post-Incident Recovery

Organisations recovering from a breach needing independent validation that network-level attack paths have been closed and security controls are working as intended.

Questions We Get Asked Often

Network penetration testing simulates real-world attacks against your external perimeter and internal infrastructure. It goes beyond vulnerability scanning by actively exploiting misconfigurations, weak credentials, and unpatched services to demonstrate exactly how far an attacker could reach. The assessment covers firewalls, VPNs, Active Directory, wireless networks, and lateral movement paths.

External network testing simulates internet-facing attacks against your perimeter, including firewalls, VPNs, exposed services, and DMZ infrastructure. Internal network testing assesses lateral movement and privilege escalation from an internal foothold, simulating a compromised workstation, rogue insider, or attacker who has breached the perimeter. Both scopes are recommended for complete coverage.

Yes. Active Directory is central to most enterprise networks, and we include specialised AD assessment covering Kerberoasting, AS-REP roasting, delegation abuse, ACL misconfigurations, GPO-based privilege escalation, and domain admin path analysis. All testing is aligned with PTES, NIST SP 800-115, and OWASP guidelines.

We follow a strict rules of engagement document that defines testing windows, off-limits systems, and escalation procedures. We use controlled exploitation techniques designed to demonstrate impact without causing damage or unplanned downtime. Any high-risk exploitation is discussed with your team before execution.

Typical engagements take 5 to 15 business days depending on network size, complexity, and scope (external only, internal only, or both). Active Directory assessments add additional time. We provide a precise timeline after initial scoping discussions.

How Far Could an Attacker Reach in Your Network?

Get a network penetration test delivered by certified engineers, covering your perimeter, internal infrastructure, and Active Directory. Free re-test included.