This indicates an attack attempt to exploit a Code Injection Vulnerability in NETGEAR ReadyNAS.
The vulnerability is due to an input validation error while handling a crafted HTTP request. A remote attacker could exploit this to execute arbitrary code execution within the context of the application, via a crafted HTTP request.
NETGEAR ReadyNAS 4.2.23
NETGEAR ReadyNAS 4.1.11
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.
Note: This signature requires "SSL Inspection" in FortiOS 5.0 and above.