Advantech WebAccess webvrpcs Service BwpAlarm.dll Backup RPC Hostname strcpy Heap-Based Buffer Overflow Remote Code Execution Vulnerability

2016-02-05T00:00:00
ID ZDI-16-067
Type zdi
Reporter Anonymous
Modified 2016-11-09T00:00:00

Description

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 0x11367 IOCTL in the BwpAlarm subsystem. A heap-based buffer overflow vulnerability exists in a call to strcpy using the Backup RPC Hostname parameter. An attacker can use this vulnerability to execute arbitrary code in the context of an administrator of the system.