Web Application Penetration Testing

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An in-depth web application penetration test coupled with a source code review is a detailed and thorough evaluation aimed at identifying security vulnerabilities in web applications.

Web Application Penetration Testing
In-depth web application penetration testing combined with a source code review is a critical step in ensuring the security and integrity of web applications.
It allows organizations to identify and address both high-level vulnerabilities and underlying code-level issues, significantly enhancing the application’s security posture.

This process typically includes the following components:

Web Application Vulnerability Scanning:

  • Comprehensive scanning for vulnerabilities such as SQL injection, XSS, CSRF, and more.
  • Testing for authentication bypass, session management issues, and insecure direct object references.
  • Evaluating security of file upload mechanisms and testing for remote code execution vulnerabilities.

Source Code Review:

  • Performing a thorough examination of the application’s source code.
  • Identifying security flaws like hard-coded credentials, insecure cryptographic practices, and logic errors.
  • Reviewing code for compliance with secure coding practices and standards.

Proxy vulnerabilities

  • HTTP Smuggling and Splitting
  • Abuse of common headers such as referer, x-forwarded-for

SSL/TLS Configuration Assessment:

  • Reviewing SSL/TLS settings of web servers for compliance with best practices.
  • Identifying outdated or vulnerable encryption protocols and ciphers.

Authentication and Authorization Testing:

  • Assessing the strength and effectiveness of authentication mechanisms.
  • Testing for flaws in multi-factor authentication (MFA) implementations.
  • Evaluating authorization schemes to ensure proper access control is enforced.

Session Management Analysis:

  • Checking session tokens for randomness and security.
  • Testing for vulnerabilities in session handling such as fixation or hijacking.

Input Validation and Output Encoding:

  • Testing all input fields for proper validation to prevent injection attacks.
  • Checking output encoding mechanisms to prevent cross-site scripting attacks.

API Security Testing:

  • Evaluating RESTful or SOAP APIs for common vulnerabilities.
  • Testing for improper exposure of sensitive data through APIs.
  • Business Logic Flaws Identification:
  • Assessing the application for vulnerabilities that stem from flawed or inadequate business logic.
  • Performing manipulation of application workflows to identify security weaknesses.

Third-Party Components Analysis:

  • Evaluating security of third-party libraries and frameworks.
  • Checking for known vulnerabilities in external components.

Web Application Penetration Testing

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Townsend Music

Townsend Music

Services: Trusted Security Partner, Cloud Engineering support, Cloud Security

We initially reached out to Punk Security to help us out with our hosting architecture and were impressed with their breadth of knowledge.

With their expertise we were able to implement additional controls into AWS and successfully scale our systems. When we needed to gain more performance insights, their engineers configured our datadog platform end to end.

We’ve found that they really take the time to understand our problem and then put forward a great solution.



Services: Trusted Security Partner, Managed Incident Response

Our internal IT team were in need of expert consultancy to help us strengthen our cybersecurity measures and protect our sensitive data.

We engaged the services of Punk Security and were thoroughly impressed with the level of professionalism and knowledge they brought to the table.

The team was able to provide valuable insights and recommendations, and their guidance helped us implement effective security protocols that have greatly enhanced our overall security posture.



Services: Incident Response, Cloud Engineering support

We originally sought Punk’s services to support us with a potential cyber-attack. The team responded immediately, out of hours, and calmly and professionally walked us through the necessary steps to determine that our environment hadn’t been compromised.

Since then, we have engaged Punk to carry out a third party audit of our cloud environment and a gap analysis against the Cyber Essentials and ISO270001 criteria. The team provided a thorough report with recommendations and are now working with us to improve our processes and systems.

I feel assured that we are walking towards best practice security operations.



Services: Penetration Testing, Cloud Engineering support

Having attended a live hack demo held at C4DI we approached Punk Security to help sure-up our cyber security and DevOps processes. Punk not only completed this audit but passed on valuable gained knowledge to our team to broaden their skills and insight in this area.

We have since continued to work in partnership with Punk to implement a WAF and frequently consult their expertise in DevOps in relation to our application so we can all learn and grow in a collaborative way.

Punk are approachable, knowledgeable and also adept at explaining in layman’s terms for the less technical! We look forward to continuing our fruitful working relationship.



Services: DevSecOps training

Our team at Illumio recently participated in a custom CTF event hosted by Punk Security, and it was a great experience! The CTF was not only challenging but also immensely educational, especially in the realm of cloud security principles.

The challenges presented during the CTF were designed to cover a broad spectrum of cloud security topics. This approach allowed our team to dive deep into practical scenarios that tested our skills and pushed us to explore new strategies and technologies. The balance between difficulty and learning outcomes was perfectly struck, ensuring that each team member, regardless of their prior level of expertise, found the event to be rewarding.

Friends of the Earth

Friends of the Earth

Services: Vulnerability scanning, Cloud Engineering support

Punk Security were happy to perform external scans pro bono due to our status as an NGO.

The team also spent meeting time on two separate occasions to discuss our requirements and provide advice without any commitment or expectation. I’ll certainly be coming to Punk Security again in future should we need further security services



Services: DevSecOps training

Punk Security provided exceptional DevSecOps training for our engineers here at Sage and delivered an outstanding talk at our Securing Sage Summit.

Their expertise and knowledge were evident throughout the sessions.

Not only were they efficient and great to work with, but their presentation was also the highest rated session of the entire event. We highly recommend Punk Security for any security-related needs.