Vengala Vinay

Having 12+ Years of Experience in Software Development

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Security & Compliance

Mitigating access token leakages via unvalidated application redirections in Custom Shopify Implementations

Understanding the Vulnerability: Unvalidated Redirects and Token Leakage In custom Shopify implementations, particularly those involving OAuth flows for app installations or third-party integrations, a critical security vulnerability can arise from unvalidated application redirections. When a Shopify app redirects a user back to a specified URL after an authentication or authorization process, failure to strictly validate […]

An Auditor’s Checklist for Securing Shopify Backends on Linode

SSH Hardening and Access Control Securing SSH access to your Linode instance hosting the Shopify backend is paramount. This involves disabling password authentication, enforcing key-based authentication, and restricting root login. We’ll also implement a firewall to limit access to only necessary ports. SSH Configuration (`sshd_config`) Edit the SSH daemon configuration file. The exact path may […]

Mitigating SQL Injection (SQLi) in customized checkout queries in Custom Magento 2 Implementations

Understanding the Attack Surface in Custom Magento 2 Checkout Logic Magento 2’s extensibility, while powerful, introduces significant security risks when developers customize core functionalities like the checkout process. Specifically, custom logic that directly manipulates SQL queries based on user-supplied input, without proper sanitization or parameterization, creates a fertile ground for SQL Injection (SQLi) vulnerabilities. This […]

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