(0Day) NETGEAR R6700 httpd strtblupgrade Heap-based Buffer Overflow Remote Code Execution Vulnerability

2020-06-15T00:00:00
ID ZDI-20-708
Type zdi
Reporter d4rkn3ss from VNPT ISC
Modified 2020-06-22T00:00:00

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of string table file uploads. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the web server.