Compass Security Blog

Offensive Defense

The Good Old DNS Rebinding

A post on how to trick browsers to work as a gateway to internal web servers and IoT devices, the concepts behind and how to easily exploit DNS rebinding using the Singularity of Origin framework.

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.CH Zone Lookup Tool

Fighting cybercrime is one of the reason Switch announced to publish the .ch zone. Switzerland has a law on Open-Government-Data-Strategy that follows the open-by-default strategy The .ch zone file contains all registered .ch domain names that have a NS record that points to the nameserver that gives authoritative answers for that domain name. Compass Security is offering […]

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Bypassing Content-Security-Policy with DNS prefetching

Introduction The Content Security Policy (CSP) is one of the main web-based security mechanisms which helps websites’ owners to reduce their risks caused by Cross-Site-Scripting (XSS) or code injection attacks [1]. The CSP is nothing more than a policy that defines from where and to where a something can be loaded and fetched. This is […]

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