Security & Compliance

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

System Hardening: C Application Security & Linode Configuration Achieving Payment Card Industry Data Security Standard (PCI-DSS) compliance necessitates a rigorous approach to security across the entire technology stack. This document outlines critical security hardening steps for C applications and the underlying Linode infrastructure, focusing on practical implementation for production environments. C Application Security: Mitigating Common […]

How We Audited a High-Traffic Magento 2 Enterprise Stack on OVH and Mitigated Race conditions during high-concurrency payment processing

Understanding the OVH Magento 2 Enterprise Stack Our engagement involved a high-traffic Magento 2 Enterprise Edition (now Adobe Commerce) deployment hosted on OVH’s Public Cloud infrastructure. The stack was a complex beast, comprising multiple web servers (Nginx), PHP-FPM instances, a Redis cluster for caching and session management, a dedicated Elasticsearch cluster for search, and a […]

How We Audited a High-Traffic Perl Enterprise Stack on AWS and Mitigated XML External Entity (XXE) injection in old SOAP integrations

Auditing a High-Traffic Perl Stack on AWS Our recent engagement involved a critical, high-traffic enterprise application stack running on AWS, primarily built with Perl and relying heavily on legacy SOAP integrations. The primary objective was to conduct a thorough security audit, with a specific focus on identifying and mitigating vulnerabilities, particularly XML External Entity (XXE) […]

How We Audited a High-Traffic C++ Enterprise Stack on OVH and Mitigated Buffer overflow vulnerability in high-performance network sockets

Initial Stack Assessment and OVH Environment Deep Dive Our engagement began with a comprehensive audit of a high-traffic C++ enterprise stack hosted on OVH’s infrastructure. The core of the application comprised several microservices written in C++, communicating over high-performance network sockets. The environment was a complex interplay of dedicated servers, load balancers (HAProxy), and a […]

Preparing for PCI-DSS Compliance: Security Hardening in Ruby and Linode Infrastructures

Securing Ruby Applications for PCI-DSS Achieving Payment Card Industry Data Security Standard (PCI-DSS) compliance for applications handling cardholder data requires a rigorous approach to security, particularly within the application layer. For Ruby on Rails applications, this translates to meticulous code review, dependency management, and runtime security configurations. This section details specific hardening techniques applicable to […]

An Auditor’s Checklist for Securing Shopify Backends on Google Cloud

I. Identity and Access Management (IAM) for Shopify on Google Cloud Auditing IAM policies is paramount. For a Shopify backend hosted on Google Cloud Platform (GCP), this involves scrutinizing service accounts, user roles, and their associated permissions. The principle of least privilege must be rigorously applied. Begin by enumerating all active service accounts associated with […]

Mitigating admin route brute force and session hijacking vulnerabilities in Custom Magento 2 Implementations

Securing the Magento 2 Admin Panel: A Proactive Approach Custom Magento 2 implementations often inherit the platform’s inherent security considerations, particularly concerning the administrative interface. The /admin route is a prime target for automated attacks, including brute-force login attempts and session hijacking. This document outlines advanced, production-ready strategies to mitigate these risks, focusing on practical […]

Preparing for PCI-DSS Compliance: Security Hardening in WooCommerce and AWS Infrastructures

Securing WooCommerce: Essential Configuration for PCI-DSS Achieving Payment Card Industry Data Security Standard (PCI-DSS) compliance for a WooCommerce store necessitates a rigorous approach to security, extending beyond basic web server configurations. This section details critical hardening steps for the WooCommerce application and its underlying PHP environment, focusing on minimizing the attack surface and protecting sensitive […]

How We Audited a High-Traffic Magento 2 Enterprise Stack on DigitalOcean and Mitigated SQL Injection (SQLi) in customized checkout queries

Initial Stack Assessment: Magento 2 Enterprise on DigitalOcean Our engagement began with a comprehensive audit of a high-traffic Magento 2 Enterprise Edition (now Adobe Commerce) deployment hosted on DigitalOcean. The stack comprised a typical Magento setup: multiple Nginx web servers acting as load balancers and reverse proxies, PHP-FPM for application execution, Redis for caching, and […]

How We Audited a High-Traffic Python Enterprise Stack on Google Cloud and Mitigated Insecure Deserialization in legacy session handling

Auditing the Legacy Session Handling Mechanism Our engagement began with a deep dive into the existing session management for a high-traffic Python enterprise application hosted on Google Cloud Platform (GCP). The primary concern was the historical reliance on insecure deserialization patterns, particularly within the legacy session handling. This often manifested as storing serialized Python objects […]

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