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External Network Penetration Testing

Test your perimeter before attackers find a way through

NeedSec simulates an external attacker with no prior access to assess your internet-facing systems. We map your full attack surface, identify exploitable weaknesses, and show the real-world impact before a breach occurs.

Manual-led testing

Every assessment is led by a qualified security engineer — human judgment, not just automated scanning.

Evidence-backed findings

Each vulnerability includes proof of concept, reproduction steps, and a business-impact risk rating.

Actionable fix guidance

Reports are structured for developers and decision makers so remediation can start immediately.

What We Test

Focused testing against realistic attack paths

NeedSec combines manual testing, structured methodology, and business-focused reporting to identify issues that matter — not just scanner noise.

01

External attack surface mapping — IP ranges, domains, and subdomain enumeration

02

Port scanning and service fingerprinting across all exposed assets

03

Firewall and perimeter control bypass testing

04

VPN security — authentication strength and configuration weaknesses

05

SSL/TLS version, cipher suite, and certificate chain review

06

DNS security — zone transfer attempts, subdomain takeover, and DNSSEC review

07

Email security — SPF, DKIM, DMARC configuration and spoofing risk

08

Remote access services — RDP, SSH, and web admin portal exposure

09

Default credentials on network devices and management interfaces

10

Web-exposed services — login portals, staging environments, and forgotten assets

11

Public vulnerability identification and manual exploitation validation

12

Attack path mapping from external access to internal pivot points

Deliverables

What you receive after every engagement

Every engagement concludes with a professional report package — written to drive action across your technical and business teams.

External attack surface map

A visual and written map of every externally reachable system and service.

Validated vulnerability evidence

Confirmed, manually validated proof for each vulnerability — no unverified scanner output.

Port and service inventory

A complete list of open ports and identified services across the tested range.

SSL/TLS and certificate report

Findings on certificate validity, cipher strength, and TLS configuration weaknesses.

Email security configuration notes

Review of SPF, DKIM, DMARC, and related email security controls.

Severity-rated findings

Every issue rated by severity so effort is focused where risk is highest.

Remediation guidance

Clear, actionable steps for resolving each finding, written for the team doing the fix.

Retest results

Outcome of post-fix verification testing, confirming which issues were successfully resolved.

Need help scoping this assessment?

Share your target systems, business goals, and timeline. NeedSec will help define the correct scope and testing approach.

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