CVE-2013-2615: Command Injection in fastreader Ruby Gem

The primary impact of CVE-2013-2615 is the potential for remote code execution (RCE). An attacker successfully exploiting this vulnerability could execute arbitrary commands on the server hosting the Ruby application. This could lead to data breaches, system compromise, and potentially complete control of the affected system. The ability to inject commands via a URL makes this vulnerability particularly concerning, as it can be exploited without requiring authentication or direct access to the server. The blast radius extends to any sensitive data processed or stored by the application, as an attacker could leverage RCE to access and exfiltrate this information.

1. Published2017-10-24
2. Modified2024-12-03
3. EPSS updated2026-04-02

Since a direct patch for CVE-2013-2615 is unavailable, mitigation focuses on input validation and URL sanitization. Implement strict input validation to reject any URLs containing semicolons or other potentially malicious characters. Utilize a Web Application Firewall (WAF) to filter out malicious requests targeting the vulnerable endpoint. Consider implementing URL rewriting rules to strip out potentially harmful characters before they reach the application. Thoroughly review and sanitize all user-supplied input to prevent command injection attacks. After implementing these mitigations, verify their effectiveness by attempting to inject a semicolon into a URL and confirming that the application handles it safely.