Pentest from the Outside
binsec GmbH performs external penetration tests over the Internet to identify and assess attack surfaces and vulnerabilities in publicly accessible systems, services and interfaces. An external pentest simulates the perspective of an attacker attempting to gain access to your infrastructure via the Internet — for example through web applications, APIs or weak passwords. The typical phases include:
- Reconnaissance & OSINT: Identification of the attack surface and evaluation of publicly accessible data, gathering information such as domains, subdomains, IP ranges, DNS records, certificates, and leaked data to map the attack surface.
- Scanning & Enumeration: Identification of accessible services via open TCP and UDP ports, collection of version information and exposed endpoints; identification of web paths, API endpoints and authentication flows.
- Vulnerability Assessment: Manual analysis of discovered services and applications for known vulnerabilities, misconfigurations and insecure default settings.
- Exploitation & Proof-of-Concept: Targeted attempts to exploit actionable vulnerabilities (only if within the agreed scope).
- Post-Exploitation / Privilege Escalation (optional): Examination of whether an initial compromise can lead to further breaches, lateral movement or data exfiltration — (only if within the agreed scope).
Frequently tested components and systems (scope is adapted to each project):
- External network and perimeter assets (public IPs, VPN gateways)
- Web applications, single-page apps, content management systems
- APIs (REST, GraphQL, SOAP) and microservice endpoints
- Cloud exposure (public buckets, IAM misconfigurations, management APIs)
- Mail infrastructure and authentication (MX, SMTP, SPF, DKIM, DMARC, webmail)
Our tests follow recognized standards and best practices (e.g., OWASP Testing Guide for Web Applications, OSSTMM) and are documented using our internal pentesting workflow PTDoc to ensure reproducibility and quality.
Example Report
Our service in a nutshell:
Conducting Penetration Testing (Pentest)
Since 2013 our certified penetration tester team conduct pentest for IT infrastructures, web applications, mobile APPs (iOS/Android) and other targets while every time using a structured approach based on all relevant publications. As a service provider evaluate the identified and exploited vulnerabilities based on the associated business risk and compiling it into a report that contains a summary for the IT management and the technical details of the vulnerabilities identified. After you fix the vulnerabilities, we usually perform a retest without any additional charge.
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Our service in a nutshell:
Conducting Penetration Testing (Pentest)
Since 2013 our certified penetration tester team conduct pentest for IT infrastructures, web applications, mobile APPs (iOS/Android) and other targets while every time using a structured approach based on all relevant publications. As a service provider evaluate the identified and exploited vulnerabilities based on the associated business risk and compiling it into a report that contains a summary for the IT management and the technical details of the vulnerabilities identified. After you fix the vulnerabilities, we usually perform a retest without any additional charge.
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Pentest-Methodology
Pentest use the same tools and techniques that real attackers would use to break into a system. It includes the use of security tools and carrying out manual tests to uncover vulnerabilities. Thus is it not a automatic vulnerability assessment. On the contrary, as a service provider for penetration testing we are using the same tools and techniques that real attackers would use to break into a system. But while a real attacker only needs to find and exploit one vulnerability, a penetration tester checks all relevant attack vectors.
Having a structured approach is one of the most important factors to achive this in order to provide a professional pentesting service. This is also important when performing a External pentest. Our approach is based on all relevant standards and publications.
Offer for External Pentest
Pentest are always a compromise between effort and cost, to get a reasonable price. Successful pentest offer a good balance between these criteria to facilitate the testing of all relevant attacks and attack vectors. The cost of such a test always depends on the time the penetration tester spends and on the extent and complexity of the IT system or web applications. While a penetration test for a small application takes only some days, it can take several weeks for a large network or complex application.
For a pentest offers we do require prior information about the systems and applications that are to be examined. It is important that we get an initial impression of the target. For web applications, for example, test access can be helpful. Any additional information, e.g. the framework etc., can make it easier for us to draft a suitable offer for you. If you need us to pentest an IT system, we will need the corresponding network addresses in advance. In this particular case, we will first perform a non-invasive network scan to get a first look at your network. We will provide a detailed offer once we can estimate the effort required.
binsec GmbH is a german pentest company for professional penetration testing. Get in touch with us for your External pentest offer - get your pentest today!
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Pentesting
for specific standards and requirements
There are a lot of standards or legal requirements worldwide, that require conducting of a penetration test.
binsec GmbH for professional Penetration Testing External pentest
binsec GmbH is the german professional penetration testing company for your External pentest. Get a pentest offer without typical sales nonsense. Talk to experts instead to pre sales consultants. Better pentesting. No nonsense. As a professional penetration test provider we do some things differently than other pentest provider: As a penetration test firm, we do not sell vulnerability scans as pentest. We do also focus on business security risks. You are looking for a professionally conducted penetration tests? Get the binsec team for your External pentest pentest!
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Frequently Asked Questions
It is difficult to give an generalized answer to this question, since the toolset used basically depends on the respective test object. Of course, we use tools such as nmap to check IT infrastructures or the Burp Suite Professional in the case of web applications.
However, we believe that publishing a tool list is mere window dressing, as each target system should be tested individually. However, you are welcome to ask us about the tools we used after the pentest.
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