EXPLORING A VPN APPLIANCE: A RESEARCHER'S JOURNEY

Summary from the TLDR InfoSec newsletter

An Akamai researcher discovered multiple vulnerabilities in Fortinet's FortiOS VPN appliance, including an out-of-bounds write, wild copy vulnerability, and denial-of-service issues. The vulnerabilities stemmed from an outdated Apache library (libapreq) from 2000 that was used to handle form data processing. While some vulnerabilities could crash the system or lead to potential information disclosure, no critical remote code execution exploits were confirmed, though the findings highlight the importance of examining VPN security.