You can find our cybersecurity experts’ network security testing services certification below. These network security testing certifications show the level of accomplishment and perseverance for our work. Please check our achievements and certifications from here.

GIAC Penetration Tester (GPEN) GIAC Exploit Researcher and Advanced Penetration Tester (GXPN) Offensive Security Certified Professional (OSCP) Offensive Security Certified Expert (OSCE)

Our Network Pentest Sample Report

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If you want to learn about our methodology, networks services and servers risks, vulnerabilities, and stuff like these, you have to scroll a bit more ;)

Network Pentest Steps

Remote Network Security Testing Services

You can test the cybersecurity of your company's networks and systems. Some of the main steps of remote network penetration tests are;

  1. Scope definitions
  2. Accessing methods to scope
  3. NDA(Non-Discolusure Agrement)
  4. Detecting active devices
  5. Network mapping and access control
  6. Gathering information about systems (OS, open ports, services)
  7. The roles of the detected systems and devices
  8. Checking for vulnerabilities passively
  9. Checking for vulnerabilities actively
  10. Gaining access to systems
  11. Privilege escalation
  12. Lateral movement steps
  13. Security software control (antivirus, antimalware software)
  14. Testing of security devices (IDS, IPS, Firewall, Waf, and other security applications)
  15. System hardening test

Network Security Vulnerabilities

You can find the list of the vulnerabilities we encountered the most while pentesting a network by connecting to an internal or online network.

It would be beneficial to look at the list even though the vulnerabilities are not limited to listed below.

Unpatched Services

Not installing security patches of the services accessible over the internet is one of the most common vulnerabilities we encounter with. Among the known vulnerabilities, this is the one for network infrastructure, especially those whose exploit codes have been published. It is one of the most dangerous ones.

Misconfigured Firewalls

Most time, both client-side and network-level firewalls are not configured with the best practices. Firewalls still do many things to prevent an attacker from gaining access and making lateral movement at the network layer.

Outdated OS Usage

We do not know why, but during our network security testing services, we generally find an outdated OS in the IT infrastructure (for OS infrastructure, this may be understandable).

Weak Guessable Passwords

Almost all network services use passwords for authentications. Therefore, a hacker with network access can use a brute force or dictionary to access the network services.

Insufficient Vlan Configurations

Vlans are used to separate devices and manage access control at a network level. Even a tiny misconfiguration in the network devices can make hackers access other VLANs..

Lack of Hardening

If necessary hardening is not done on the server, processor, and network devices, hackers would not only break into the systems but also can perform malicious transactions as well as progress horizontally or authorization escalation.

Insufficient Logging & Monitoring

Failure to do sufficient logging and monitoring cause the inability to catch how and by whom the event occurred. Additionally, insufficient logging makes it hard to detect a cyberattack, impossible even for most of the time. Therefore, in the network security testing services performed by S4E Team, suggestions are made to fully collect the necessary track records by working with the customer.

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