Security & Compliance

How We Audited a High-Traffic PHP Enterprise Stack on OVH and Mitigated Insecure Deserialization in legacy session handling

Auditing the OVH Enterprise Stack: Initial Reconnaissance and Scope Our engagement began with a deep dive into a high-traffic PHP enterprise application hosted on OVH’s infrastructure. The primary objective was to identify and mitigate security vulnerabilities, with a specific focus on legacy session handling mechanisms that were suspected of being a weak point. The stack […]

Preparing for PCI-DSS Compliance: Security Hardening in C and Google Cloud Infrastructures

Securing C Code for PCI-DSS Compliance When dealing with sensitive cardholder data, the security of the underlying C code is paramount. PCI-DSS mandates strict controls over how this data is handled, stored, and transmitted. This section focuses on practical C code hardening techniques directly relevant to compliance requirements. Input Validation and Sanitization Buffer overflows and […]

How We Audited a High-Traffic WooCommerce Enterprise Stack on Google Cloud and Mitigated Race conditions during high-concurrency payment processing

System Overview: High-Traffic WooCommerce on Google Cloud Our engagement involved a large-scale WooCommerce enterprise deployment hosted on Google Cloud Platform (GCP). The architecture was a multi-region, multi-cluster setup designed for high availability and scalability. Key components included: Compute: Google Kubernetes Engine (GKE) clusters running multiple replicas of the WooCommerce application, PHP-FPM, and Nginx. Database: Cloud […]

How We Audited a High-Traffic PHP Enterprise Stack on DigitalOcean and Mitigated SQL Injection (SQLi) in customized checkout queries

Initial Stack Assessment and Vulnerability Discovery Our engagement began with a deep dive into a high-traffic PHP enterprise application hosted on DigitalOcean. The primary objective was to identify and remediate security vulnerabilities, with a specific focus on the customized checkout process, a common vector for financial data compromise. The stack comprised a typical LAMP-like setup: […]

An Auditor’s Checklist for Securing WordPress Backends on OVH

OVH WordPress Backend: An Auditor’s Security Checklist This document outlines a rigorous checklist for auditing the security posture of WordPress backends hosted on OVH infrastructure. It targets security engineers and compliance officers, focusing on actionable steps and specific configurations relevant to the OVH environment. 1. Server-Level Hardening (OVH Dedicated/VPS) Assuming a dedicated server or VPS […]

How We Audited a High-Traffic Laravel Enterprise Stack on AWS and Mitigated Broken Object Level Authorization (BOLA) in API gateway endpoints

Auditing a High-Traffic Laravel Enterprise Stack on AWS Our engagement involved a critical audit of a high-traffic Laravel enterprise application hosted on AWS. The primary concern was the potential for Broken Object Level Authorization (BOLA) vulnerabilities within its API Gateway-exposed endpoints. This class of vulnerability allows an attacker to access or modify resources they are […]

Mitigating Remote Code Execution (RCE) via insecure file uploads in Custom Magento 2 Implementations

Understanding the RCE Vector in Magento 2 File Uploads Custom Magento 2 implementations often introduce bespoke features that involve file uploads. While seemingly innocuous, these features can become critical attack vectors for Remote Code Execution (RCE) if not meticulously secured. The core vulnerability lies in the application’s failure to properly validate file types, content, and […]

Code Auditing Guidelines: Detecting and Fixing Cross-Site Scripting (XSS) in custom themes in Your Shopify Monolith

Understanding XSS Vectors in Shopify Themes Shopify’s Liquid templating language, while powerful, presents unique challenges for preventing Cross-Site Scripting (XSS) vulnerabilities, especially within custom themes. Unlike server-side rendered applications where input sanitization is often centralized, Shopify themes rely heavily on client-side rendering and Liquid’s built-in filters. Attackers can exploit unescaped user-generated content or improperly handled […]

Code Auditing Guidelines: Detecting and Fixing Server-Side Request Forgery (SSRF) in webhook parsers in Your Python Monolith

Understanding SSRF in Webhook Parsers Server-Side Request Forgery (SSRF) is a critical vulnerability that allows an attacker to induce the server-side application to make HTTP requests to an arbitrary domain of the attacker’s choosing. In the context of webhook parsers within a Python monolith, this often arises when user-supplied data is used to construct URLs […]

An Auditor’s Checklist for Securing C++ Backends on OVH

I. C++ Application Hardening: Compile-Time and Runtime Defenses Securing C++ backends on OVH necessitates a multi-layered approach, starting at the compilation stage and extending through runtime configurations. This section details critical hardening techniques for C++ applications deployed on OVH infrastructure, focusing on mitigating common vulnerabilities. A. Compiler Flags for Enhanced Security Leveraging modern compiler features […]

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