Internal Penetration Testing

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Internal Penetration Testing

An internal penetration test is a simulated cyber-attack conducted within an organisation’s internal network to identify and exploit vulnerabilities that could be leveraged by malicious insiders or attackers who have bypassed external defences.

The objective is to assess how an attacker could move laterally, escalate privileges, and access sensitive systems or data from within the network.

This type of testing evaluates the effectiveness of internal security controls, such as segmentation, access restrictions, and detection mechanisms.

By identifying weaknesses like misconfigured systems, weak passwords, or outdated software, an internal penetration test helps organisations strengthen their internal security posture, reduce risk, and ensure that potential attack paths are identified and mitigated before they can be exploited.

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Benefits

Identify potential attack paths from within the network.
Assess insider threat risks and internal security posture.
Validate the effectiveness of segmentation and internal controls.
Strengthen internal defences and incident response plans.

Common Vulnerabilities

Weak domain or local passwords.
Unpatched internal systems and services.
Insecure network configurations.
Unrestricted access to sensitive data.
Misconfigured Active Directory settings.
Lack of network segmentation and access control.

Methodology

Initial access simulation (authenticated or unauthenticated).
Internal network enumeration and vulnerability scanning.
Exploitation of weaknesses and privilege escalation.
Lateral movement to identify and access critical assets.
Reporting with strategic and tactical remediation advice.

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