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External Network Pentest

External Network Pentest

Your organization's public-facing infrastructure is the first line of defense against cyber-attacks. Attackers routinely scan the internet for exposed services, outdated systems, misconfigurations, and weaknesses that can lead to unauthorized access or full compromise.

Our External Network Penetration Testing identifies vulnerabilities in your internet-facing assets and simulates real-world attack techniques used by threat actors to gain an initial foothold into your environment.

We go beyond automated vulnerability scans—providing deep manual analysis, exploitation attempts, attack path mapping, and risk-focused reporting.

Our Service Methodology

  1. 1

    Scoping & Planning

    We define testing objectives, validate external IP ranges and domains, confirm asset ownership, and establish safe testing windows to ensure a controlled, non-disruptive engagement.

  2. 2

    Reconnaissance & Information Gathering

    We perform external footprinting to identify publicly exposed systems, services, cloud assets, DNS records, certificates, and network infrastructure that form your internet-facing attack surface.

  3. 3

    Threat Modeling & Attack Surface Analysis

    We analyze exposed entry points, authentication portals, remote access services, misconfigurations, and high-value external assets to prioritize likely attacker paths and business-impacting risks.

  4. 4

    Vulnerability Discovery & Exploitation

    We conduct targeted testing of publicly accessible systems using a combination of automated scanning and manual techniques to identify exploitable weaknesses, misconfigurations, outdated software, and insecure interfaces.

  5. 5

    Post-Exploitation & Risk Assessment

    Where exploitation is successful (within scope), we assess real-world impact—such as unauthorized access, data exposure, foothold potential, or pivot opportunities—while maintaining strict safety controls.

  6. 6

    Reporting & Remediation Support

    You receive a detailed report with an executive narrative, technical findings, CVSS scoring, evidence, and prioritized remediation guidance, along with a complimentary retest to verify fixes.

What We Test

Perimeter Infrastructure

Firewalls, routers, load balancers, reverse proxies, DDoS protection mechanisms, ACLs, and NAT configuration.

Public-Facing Servers & Services

Web servers, mail servers, FTP/SSH, VPNs, remote management ports, and DNS servers.

Cloud & Hybrid Network Exposure

Misconfigured buckets (S3/Azure/GCP), exposed serverless endpoints, public VMs, and insecure cloud firewalls.

TLS/SSL & Certificate Security

Weak ciphers, outdated certificates, protocol fallback attacks, and HSTS misconfigurations.

Authentication & Access Points

VPN gateways, SSO portals, admin panels, remote desktop interfaces, MFA gaps.

DNS & Email Security

SPF/DMARC/DKIM issues, open resolvers, subdomain takeovers, and MX misconfigurations.

External APIs

Access control flaws, rate limiting issues, insecure endpoints, and sensitive data leaks.

Common Vulnerabilities

Remote code execution, directory traversal, default credentials, CVE exploitation, misconfigured services, sensitive info disclosure (robots.txt, .git, etc.), web server enumeration findings. We assess both commodity and advanced threats.

Compliance & Standards

Compliance Support

PCI DSS
Requirement 11.3 External testing
HIPAA
Technical safeguards for publicly accessible systems
SOC 2 Type II
Perimeter security controls
GDPR
Reducing unauthorized external access risk
ISO 27001
Annex A.12 & A.13 (Vulnerability & network security)
NIST CSF
Identify, Protect, Detect controls

Testing Standards

  • PTES (Penetration Testing Execution Standard)
  • CIS Benchmarks (server & perimeter hardening)
  • NIST SP 800-115 (Technical Security Testing)
  • MITRE ATT&CK Framework (external intrusion techniques)
  • OWASP ASVS (perimeter-related requirements)

FAQ

Typically, 1–2 weeks, depending on the number of IPs, domains, and services exposed.

READY TO SECURE YOUR PERIMETER?

Book a consultation to discuss your external attack surface and receive a custom quotation tailored to your infrastructure.

Schedule Free Consultation