Shellshock Bash Exploitation Attempt in HTTP Headers

Ankit Mehta@Secvyn

•updated Jun 30, 2026•0•0•1

Detects attempts to exploit the Shellshock vulnerability (CVE-2014-6271) by inspecting HTTP request headers for the characteristic function definition syntax '() { :;'. This pattern is commonly used in malicious payloads to trigger command execution via environment variables in CGI scripts.