About Internal Network Penetration Testing
Internal network penetration testing to identify and validate real risks across internal systems, Active Directory, and lateral movement paths.
INTERNAL / NET
Internal Network Penetration Testing
Internal Network Vulnerability Assessment and Penetration Testing (VAPT) to identify and validate real security risks across internal systems, identities, and privilege escalation paths.
IDENTITY // LATERAL // PRIVESC // DETECT // IDENTITY // LATERAL // PRIVESC // DETECT
Service Overview
Internal Network Penetration Testing focuses on identifying weaknesses within enterprise environments from the perspective of an internal or authenticated attacker.
The assessment evaluates how access can be expanded after initial entry, how credentials can be abused, and how privileges can be escalated across systems and identity infrastructures. This includes testing how internal services are exposed, how trust relationships are configured, and how systems can be accessed or compromised through lateral movement.
The objective is to determine how an attacker can move within the environment, what systems can be reached, and how sensitive data or domain-level control can be obtained. Findings are validated to ensure they represent real and actionable risk.
Attack Path Validation
From initial access to domain compromise
Weaknesses are assessed across systems, services, and identity controls, focusing on how issues such as credential exposure, misconfigurations, or weak permissions can be combined to escalate privileges, move laterally, and compromise critical systems.
Benefits
Clear visibility into internal risk
Identifies how internal systems and identities can be abused after initial access.
Focus on privilege escalation and lateral movement
Highlights paths that lead to high-impact compromise.
Confirmed exploitability of attack paths
Validates whether access can be expanded across the environment.
Accurate understanding of internal security posture
Reflects how the environment behaves under real attack conditions.
Why Choose VulnXperts
What We Test
A structured review of how internal systems, services, and identities can be accessed and abused to expand access, escalate privileges, and reach critical assets.
How we approach testing
Testing begins with limited or assumed access, followed by systematic enumeration, exploitation, and validation of how access can be expanded across systems and identity boundaries.
Automated vulnerability discovery and baseline risk assessment
Manual penetration testing for validation, exploitation, and attack path confirmation
Internal network reconnaissance and service enumeration (TCP/UDP scanning, fingerprinting)
Network topology, segmentation, and trust boundary mapping
Attack surface identification across internal services and management interfaces
Credential exposure and abuse (weak passwords, reuse, spraying, NTLM relay)
Authentication and authorization testing across internal systems
Validation of outdated, unpatched, or unsupported systems and software (CVE-based, EOL exposure)
Local and domain-level privilege escalation (Windows/Linux)
Credential extraction (LSASS, SAM, NTDS, cached credentials)
Active Directory enumeration (users, groups, permissions, trusts)
Active Directory attack path analysis (ACL abuse, privilege escalation paths)
Kerberos abuse (Kerberoasting, AS-REP roasting, ticket misuse)
Delegation abuse (unconstrained, constrained, RBCD)
AD CS misconfiguration testing (certificate abuse, escalation scenarios)
GPO misconfiguration and abuse testing
Lateral movement using compromised credentials or sessions
Internal pivoting (port forwarding, SOCKS proxying, cross-segment access)
Network segmentation bypass testing
Name resolution poisoning (LLMNR, NBT-NS, mDNS, WPAD)
Exploitation of internal services (SMB, LDAP, RDP, WinRM, SSH, HTTP/S, databases)
Service-level vulnerabilities (command execution, misconfigurations)
Injection and input handling testing where applicable
File-based vulnerabilities (LFI, RFI, path traversal on internal apps)
Sensitive data exposure (file shares, backups, configs, logs)
Persistence mechanisms (scheduled tasks, services, registry, GPO-based persistence)
FAQs
Ready to scope this engagement?
Tell us what needs to be tested. We will define scope, access level, and approach based on your environment.