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.
Compass Security Blog
Offensive Defense
SharePoint is a very popular browser-based collaboration and content management platform. Due to its high complexity, proprietary technology and confusing terminology it is often perceived as a black-box that IT and security professionals do not feel very comfortable with. These days, web security topics are well understood by many security professionals, penetration testers and vendors. But what […]
Opening up an internal SharePoint farm to the Internet in order to share resources with external parties might seem a good idea, because it helps avoiding expensive infrastructure changes. However, in terms of security, this is not recommended because it does not sufficiently protect internal resources from external threats. The protection of internal resources hinges […]
What is a Hack-Lab? Compass Security provides a monthly playful occasion for the security analysts to get-together and try to hack new devices, dive into current technologies and share their skills with their fellows. This also includes the improvement of internal tools, the research of newly identified publicly known attacks, and security analysis of hardware […]
What is a Hack-Lab? Compass Security provides a monthly playful occasion for the security analysts to get-together and try to hack new devices, dive into current technologies and share their skills with their fellows. This also includes the improvement of internal tools, the research of newly identified publicly known attacks, and security analysis of hardware […]
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 […]
During a SharePoint 2013 penetration test I performed last November, I noticed that a dynamically constructed JavaScript constantly fetched content or redirected me to the requested pages. Using a variation of the double-slash trick we exploited in the past, I misused this functionality in order to perform a DOM based open redirection attack. Every SharePoint […]
Nowadays, we all relentlessly use search engines and developers extensively use version and source code control systems to keep track of their source code. Services such as Google or GitHub are great to search and retrieve information they gathered and stored. But when it comes to public indexing services, one big problem raises up: your whole […]
Mozilla created an extensive page [7] concerning the best current choice of SSL/TLS cipher suites, primarily for web servers. Compass Security agrees broadly with the article, but recommends some additional restrictions in order to provide the most resistance against active and passive attacks versus TLS secured connections: Use 3DES cipher instead of RC4 Disable SSLv3 support […]
Companies battle with users who download files from the Internet at work and then execute them. Unsuspicious files are often infected with malware. A common procedure to decrease the amount of infections is to block common bad file types (for example .exe, .scr or .zip), before the files can enter the internal network. The preconditions […]
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