Compass Security Blog

Offensive Defense

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Android 7.0 Security Features: Direct Boot

Android 7.0 (Nougat) brings a lot of new interesting security features such as: Direct Boot Key Attestation Network Security Configuration Scoped Directory Access Media Server Hardening All of these topics are very interesting from a security perspective. However, in this blog post we will solely focus on Direct Boot. Motivation There are apps, which should […]

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Making of Compass bIOTech v1.0

The “Internet of Things” (IoT) grows quickly. More and more devices are connected to the Internet to automate tasks and simply life. Fridges automatically order milk, cars are taught to self-drive via a simple update and bridges send live updates about their structural integrity. According to Gartner’s 2016 Tech Trends, IoT will define the shape of tomorrow’s […]

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Windows Phone – Security State of the Art?

Compass Security recently presented its Windows Phone and Windows 10 Mobile research at the April 2016 Security Interest Group Switzerland (SIGS) event in Zurich. The short presentation highlights the attempts made by our Security Analysts to bypass the security controls provided by the platform and further explains why bypassing them is not a trivial undertaking. Windows 10 Mobile, which […]

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Presentation on SAML 2.0 Security Research

Compass Security invested quite some time last year in researching the security of single sign-on (SSO) implementations. Often SAML (Security Assertion Markup Language) is used to implement a cross-domain SSO solution. The correct implementation and configuration is crucial for a secure authentication solution. As discussed in earlier blog articles, Compass Security identified vulnerabilities in SAML […]

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Aftermath of the Netgear Advisory Disclosure

Update – 13.10.2015: Netgear published a new firmware (version 1.1.0.32) which fixes the reported authentication bypass. My most recently appointed colleague, Daniel Haake, described in the previous blog article “Authentication Bypass in Netgear WNR1000v4 Router” how he found an authentication bypass in commonly used Netgear firmwares. Due to the rediscovery of the issue and its […]

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IP-Box – Why a 4 digit passcode is still a bad idea

Up to the iPhone 4, 4 digit passcodes could be brute-forced within a short amount of time – maximum 30 minutes, depending on the passcode. With the iPhone 4s, the Boot ROM vulnerability required to upload a custom RAM disk has been closed thus rendering newer phones immune to this attack. This is where the IP-Box […]

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Hacklab Q2 – NoSQL mischief

At our reoccurring Hacklab days, we at Compass get the chance to hack some stuff of our own choice together for a day. For example playing with GSM in an attempt to send fake SMS or eavesdrop on voice data, comparing Encase capabilities to Unix command line forensic tools or cloning door entry badges in […]

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Netzwerktraffic und APT Analyse

Compass Security wird vermehrt von Kunden bzgl. Verdacht auf Advanced Persistent Threat (APT) kontaktiert. Unter die Bezeichnung “APT” fallen komplexe, zielgerichtete und äusserst effektive Angriffe auf kritische und zuweilen gar unternehmenswichtige Computersysteme bzw. deren gespeicherte Informationen. Die Analyse von potentiell infiltrierten Netzen und Systemen gestaltet sich jedoch als enorm aufwändig, da Unmengen von Datensätzen und […]

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Presentation about Windows Phone 8.1

Earlier this month, my colleague Cyrill Bannwart and I held two Compass Security Beer Talk presentations in Bern and Jona about Windows Phone 8.1 security. The slides are now online and cover: Our (unsuccessful) black box attempts to break out from a Windows perspective A review of the implemented security features in Windows Phone 8.1 from a mobile perspective Our findings […]

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XSLT Security and Server Side Request Forgery

Nowadays, a growing list of XSLT processors exist with the purpose of transforming XML documents to other formats such as PDF, HTML or SVG. To this end such processors typically offer a powerful set of functionalities – which, from a security point of view, can potentially pose severe risks. Within this post, we highlight some […]

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