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Rust Won’t Save Us: An Analysis of 2023’s Known Exploited Vulnerabilities

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, reports that approximately 70% of...
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CVE-2024-0204: Fortra GoAnywhere MFT Authentication Bypass Deep-Dive

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, 2023, in which researchers malcolm0x...
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Writeup for CVE-2023-39143: PaperCut WebDAV Vulnerability

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 22.1.3 in July 2023. This...
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Cisco IOS XE CVE-2023-20198: Deep Dive and POC

Introduction This post is a follow up to https://www.horizon3.ai/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 example request that bypasses authentication...
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