Attack Blogs

Introduction Our last blog post on the FortiClient EMS SQL injection vulnerability, CVE-2023-48788, as it turns out only worked on 7.0.x versions. This article will discuss the differences in exploitation between FortiClient EMS's two mainline versions: 7.0.x and 7.2.x. When writing exploits for different versions of vulnerable software, the differences in the exploit are usually…

In November of 2023, preparing for a call for papers, I attempted to investigate the FortiSIEM patch for CVE-2023-34992. I kindly inquired with the PSIRT if I could have access to the most recent versions to some of their appliances to validate the patches, to which they declined. Acquiring access a different way, I eventually…

In early 2023, given some early success in auditing Fortinet appliances, I continued the effort and landed upon the Fortinet FortiSIEM. Several issues were discovered during this audit that ultimately lead to unauthenticated remote code execution in the context of the root user. The vulnerabilities were assigned CVE-2023-34992 with a CVSS3.0 score of 10.0 given…

Introduction In a recent PSIRT, Fortinet acknowledged CVE-2023-48788 - a SQL injection in FortiClient EMS that can lead to remote code execution. FortiClient EMS is an endpoint management solution for enterprises that provides a central location for administering enrolled endpoints. This SQL injection vulnerability is caused by user controlled strings that are passed directly into…

Early in 2023, soon after reproducing a remote code execution vulnerability for the Fortinet FortiNAC, I was on the hunt for a set of new research targets. Fortinet seemed like a decent place to start given the variety of lesser-known security appliances I had noticed while searching for the FortiNAC firmware. The first target I…

NextChat a.k.a ChatGPT-Next-Web, a popular Gen AI ChatBot, is vulnerable to a critical server-side request forgery (SSRF) vulnerability.

On February 27, 2024, Progress released a security advisory for OpenEdge, their application development and deployment platform suite. The advisory details that there exists an authentication bypass vulnerability which effects certain components of the OpenEdge platform. Our proof of concept can be found here. When the OpenEdge Authentication Gateway (OEAG) is configured with an OpenEdge…

Introduction On February 19, 2023, ConnectWise published a security advisory for their ScreenConnect remote management tool. In the advisory, they describe two vulnerabilities, an authentication bypass with CVSS 10.0 and a path traversal with CVSS 8.4 (both currently without assigned CVE IDs). In this post we will dive into the technical details of the authentication bypass.…

Introduction Memory safety issues have plagued the software industry for decades. The Cybersecurity & Infrastructure Security Agency (CISA) has been leading a charge for secure-by-design and encouraging developers and vendors to utilize memory safe languages like Rust to eradicate this vulnerability class.  Google Chromium, the engine used by the majority of browsers around the world,…

CVE-2024-23897: Assessing the Impact of the Jenkins Arbitrary File Leak Vulnerability.