Forescout Research Labs, with support from Medigate Labs, have discovered a set of 13 new vulnerabilities affecting the Nucleus TCP/IP stack, which we are collectively calling NUCLEUS:13. The new vulnerabilities allow for remote code execution, denial of service, and information leak. Nucleus is used in safety-critical devices, such as anesthesia machines, patient monitors and others in healthcare.
Embedded devices with limited memory and storage resources are likely to leverage a tool such as BusyBox, which is marketed as the Swiss Army Knife of embedded Linux. BusyBox is a software suite of many useful Unix utilities, known as applets, that are packaged as a single executable file. Within BusyBox you can find a full-fledged shell, a DHCP client/server, and small utilities such as cp, ls, grep, and others.
ProxyShell is a massive new exploit campaign that is targeting vulnerable Microsoft Exchange servers. The servers are publicly available and the campaign is directly responsible for a number of breaches and subsequent ransomware attacks. There have been thousands of compromised Exchange servers to date. Ransomware is simply the byproduct of unauthorized access and privilege escalation and typically has to start with something like ProxyShell providing an attacker remote access.
Often, penetration testing (or pen testing) and vulnerability scanning are used interchangeably. In doing so, the importance of each method of testing gets lost in the confusion. Both of these are significant in protecting your data and infrastructure for different reasons. In the age of digitally storing information and companies having an online network presence, it’s easy for hackers to find their way in. This is why both pen testing and vulnerability scanning are important.
As the world increasingly moves to a digital format, cybersecurity is becoming more important than ever. It’s especially significant since, according to a recent survey by Sophos, 51% of businesses in America experienced a ransomware attack in 2020. That’s a staggering number of security vulnerabilities that truly shouldn’t exist in the modern day and age. Yet, it’s relatively understandable.
According to the National Vulnerability Database (NVD), the number of new security vulnerabilities increases steadily over the past few years. Image source: NVD The consistent rise in the number of security vulnerabilities along with headline-catching exploits like the SolarWind supply chain attack earlier this year has organizations doubling down on vulnerability management programs to ensure that they are not exposed to malicious attacks.
With millions of apps being released every day and ever-changing feature additions, it is more important than ever for enterprises to focus on security to prevent data breaches. According to Checkpoint, in 2020, 97 per cent of enterprises were confronted with mobile threats employing a variety of attack vectors. What is Mobile Security Testing Guide (MSTG)? The MSTG is a comprehensive manual for mobile app security testing.
In a previous blog post, we showed how type manipulation (or type confusion) can be used to escape template sandboxes, leading to cross-site scripting (XSS) or code injection vulnerabilities. One of the main goals for this research was to explore (in the JavaScript ecosystem) how and if it is possible to bypass some security fixes or input validations with a type confusion attack (i.e by providing an unexpected input type).
