Moxa SoftCMS VLCControl setUserInfoData strIP Remote Code Execution Vulnerability

ID ZDI-15-437
Type zdi
Reporter Fritz Sands - HP Zero Day Initiative
Modified 2015-11-09T00:00:00


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Moxa SoftCMS. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within processing of the strIP parameter of the setUserInfoData method of the VLCPlugin control. The IP address string is copied to a fixed-length heap buffer without a length validation. An attacker can leverage this vulnerability to gain code execution under the context of the process.