AppCheck Security Blog

There is no doubt that the GDPR is serious business. AppCheck has noticed a significant shift in focus by company executives, taking a much more active interest in security matters since the GDPR, and specifically the fines were introduced. Naturally, with that comes a never-ending list of vendors claiming to solve the GDPR problem. In truth, no one product or service can achieve compliance, rather the GDPR requires a strategy that includes a thorough understanding of your responsibilities, exposure and requirements to demonstrate compliance with the six principals of the GDPR.

Browser based Crypto-Mining malware has made a dramatic resurgence in 2018 hitting the headlines on several occasions over the past month. Most recently, two major campaigns affecting thousands were reported by The Register with those affected ranging from YouTube to the UK’s Information Commissioner’s Office.

AppCheck partnered with Sec-1 Ltd to undertake a research project investigating the security challenges posed by next generation web applications. The project included an investigation of Cross-Origin communication mechanisms provided via HTML5 including postMessage and CORS.

One of the key findings from the research shows that vulnerabilities introduced through an insecure postMessage implementation are frequently missed by security scanners and consultants performing manual review.

AppCheck Sentinel is an external monitoring system designed to detect Out-of-Band events such as DNS Lookups and HTTP requests. Its’ function in Web Application scanning is to aid the detection of vulnerabilities that cannot be identified through the use of conventional scanning techniques.

In this video series we discuss the common security flaws encountered in HTML5 enabled websites. Our focus is around Cross-Origin communication through postMessage and CORS.