Security Practitioner

Introduction There has been a lot of news around the recent Cisco IOS XE vulnerabilities CVE-2023-20198 and CVE-2023-2073. Information about this vulnerability was first published by Cisco on October 16th, 2023, and since then we have seen evidence of mass exploitation and implantation. In this post we share our technical insights so far into these…

Mirth Connect, by NextGen HealthCare, is an open source data integration platform widely used by healthcare companies. Versions prior to 4.4.1 are vulnerable to an unauthenticated remote code execution vulnerability, CVE-2023-43208. If you’re a user of Mirth Connect, you’ll want to upgrade to the latest patch release, 4.4.1, as of this writing.

Introduction This report is a follow up to https://horizon3.ai/vmware-vrealize-log-insight-vmsa-2023-0001-technical-deep-dive/. Earlier this year we reported the technical details for VMSA-2023-0001 affecting VMware Aria Operations for Logs (formerly VMware vRealize Log Insight). In that report, we showed how an attacker could use three different CVEs to achieve remote code execution. During the course of that investigation, we…

On Monday, 16 October, Cisco reported a critical zero-day vulnerability in the web UI feature of its IOS XE software actively being exploited by threat actors to install Remote Access Tools (RATs) and backdoor vulnerable devices exposed on the internet.

Horizon3.ai Senior Engineer Noah King discusses the journey of obtaining an Offensive Security Certified Professional (OSCP) certification. Whether you're a cybersecurity enthusiast or a beginner looking to explore the field, you'll learn tips and tricks to help you navigate the certification process, including: - How to get started in Offensive Security with little or no…

Apache Superset is a popular open source data exploration and visualization tool. In a previous post, we disclosed a vulnerability, CVE-2023-27524, affecting thousands of Superset servers on the Internet, that enables unauthorized attackers to gain admin access to these servers. We also alluded to methods that an attacker, logged in as an admin, could use…

As security threats continue to evolve and become more sophisticated, the need for advanced security mechanisms and strategies has become paramount. Two technologies that stand out in this domain are the NodeZero platform and Splunk.

Introduction Ivanti has recently published an advisory for CVE-2023-38035. The vulnerability has been added to CISA KEV and is described as an authentication bypass in the Ivanti Sentry administrator interface. This new vulnerability comes on the heels of an in-the-wild-exploited vulnerability in Ivanti EPMM (CVE-2023-35078). In this post we will take a deep dive into…

Horizon3.ai CEO Snehal Antani discuss several real-world examples of what autonomous pentesting discovered in networks just like yours. You’ll hear more about how fast and easy it was to safely compromise some of the biggest (and smallest) networks in the world - with full domain takeover in a little more than a few hours. Learn…

Introduction In December 2022, we competed at our first pwn2own. We were able to successfully exploit the Lexmark MC3224i using a command injection 0-day. This post will detail the process we used to discover, weaponize, and have some fun with this vulnerability. You can find our POC here. Printer Acquisition It was rather difficult to…