Security Consultant Identifies Critical Web Vulnerability Chain
/ 1 min read
🔗 Security Consultant Uncovers Critical Vulnerability Through Chained Findings. A recent engagement by a Security Consultant II at NetSPI revealed a significant vulnerability by linking multiple security issues across three applications running on the same hostname but different ports. Initially, the findings included a Reflected Cross-Site Scripting (XSS) vulnerability and a Remote Code Execution (RCE) risk, both requiring admin access. However, the discovery of Cross-Application Cookie Exposure allowed for session hijacking in Application C, which lacked the HttpOnly flag on its session cookie. By exploiting the XSS vulnerability in Application A, the consultant successfully crafted a payload to steal the session cookie from Application C, demonstrating how seemingly minor misconfigurations can lead to severe security breaches.
