Mitsubishi Electric E-Designer BEComliSlave Driver Configuration Status_bit Stack-based Buffer Overflow Remote Code Execution Vulnerability

ID ZDI-17-509
Type zdi
Reporter rgod
Modified 2017-08-02T00:00:00


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Mitsubishi Electric E-Designer. 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 a driver configuration file when initializing the BEComliSlave component. When parsing the property Status_bit, the process fails to properly validate 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 arbitrary code in the context of the Administrator.