Attack Research

NodeZero APT: Azure Password Spray to Business Email Compromise

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.

On January 22, 2024 Fortra posted a security advisory for their GoAnywhere MFT product. This advisory details an authentication bypass vulnerability, CVE-2024-0204, that allows an unauthenticated attacker to create an administrative user for the application. Customers were made aware of the issue by an internal security advisory post and patch made available on December 4,…

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 Back in Aug. 2023 we released an advisory for CVE-2023-39143, a critical vulnerability that affects Windows installs of the PaperCut NG/MF print management software. Attackers can exploit this vulnerability to download and delete arbitrary files, and in certain common configurations upload files, leading to remote code execution. This vulnerability was patched in PaperCut version…

Since introducing NTLM coercion techniques such as PetitPotam into the NodeZero platform, we frequently have security practitioners request help understanding these techniques and what impact they have to their enterprise. There is a lack of concise resources to inform Blue Teams on how these techniques work, and clearly distinguishing them from other misconfigurations/vulnerabilities in the…

Misconfigured AWS Role Enables Cloud Initial Access

Pervasive CISA Known Exploited Vulnerability Enables Initial Access

Introduction This post is a follow up to https://horizon3.ai/attack-research/attack-blogs/cisco-ios-xe-cve-2023-20198-theory-crafting/. Previously, we explored the patch for CVE-2023-20273 and CVE-2023-20198 affecting Cisco IOS XE and identified some likely vectors an attacker might have used to exploit these vulnerabilities. Now, thanks to SECUINFRA FALCON TEAM's honeypot, we have further insight into these vulnerabilities. POC See below for an…