Integer overflow in the Kernel service in Advantech WebAccess before 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted RPC request.
Desbordamiento de entero en el servicio Kernel en Advantech WebAccess en versiones anteriores a 8.1 permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (desbordamiento de buffer basado en pila) a través de una petición RPC manipulada.
This vulnerability allows remote attackers to execute arbitrary code on vulnerable instances of Advantech WebAccess. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the implementation of the 0x791E IOCTL in the Kernel subsystem. An integer overflow for alloc size vulnerability exists. An attacker can use this vulnerability to execute arbitrary code in the context of an administrator of the system.
