(Pwn2Own) Synology BC500 synocam_param.cgi Stack-based Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology BC500 cameras. Authentication is not required to exploit this vulnerability. The specific flaw exists within the synocam_param.cgi module. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.