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Michael Yermakov

What we find, how it is exploited, and what actually fixes it. Written by the people who ran the test.

Application Security

PHP Security Code Review Cheat Sheet

In today’s development landscape among our customers, it’s rare to encounter production PHP code. However, when we do, the story is always the same. Typically, such code is…

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Cloud Security

Still Using SSRF to Take Over Cloud Deployments Once Again

How Server-Side Request Forgery Can Lead to Full Cloud Compromise - and What You Can Do About It Contents Introduction Server-Side Request Forgery (SSRF) is a powerful exploit…

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Cloud Security

Firestore White Box Security Review Checklist

Table of Contents Introduction Securing your application’s Firestore database is crucial for protecting sensitive data and maintaining user trust. Google Firestore, a scalable NoSQL cloud database, offers robust…

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Black Box Testing

Firestore Database – Black Box Security Testing Guide –  Go Beyond *.firebaseio.com/.json

Table of Contents Incentives Firestore security is an important topic for modern applications. Its wide usage and serverless architecture may cause security issues in the areas such as…

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Black Box Testing

A Guide For Advanced Message Protected API Hacking Using Hackvertor and Burp (Part #2)

Table of Contents More up-to-date Hackvertor game-changer techniques, code examples, and tips for advanced penetration testing and bug bounty. Intro Hackvertor is a Burp extension that programmatically extends…

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Black Box Testing

Advanced Testing Of Web Application With Custom Message Signing Using Hackvertor (Part #1)

Table of Contents Introduction Many of us have probably been faced with testing an application with custom HTTP request authentication or message signing. The requests from these applications…

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