TippingPoint Zero Day Initiative

GE Proficy Historian KeyHelp ActiveX LaunchTriPane Remote Code Execution Vulnerability

ZDI-12-169: August 29th, 2012


CVSS Score

Affected Vendors

Affected Products

    Proficy Historian

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11626. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of GE Proficy Historian. 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 the KeyHelp.ocx ActiveX control. The control contains a LaunchTriPane function that allows launching of the HTML Help executable (hh.exe) with customized command line parameters. By using the -decompile switch, an attacker can specify the folder to decompile to and a UNC path to a specially crafted .chm file. The attacker can utilize this vulnerability to execute remote code under the context of the process.

Vendor Response

GE has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2012-01-24 - Vulnerability reported to vendor
    2012-08-29 - Coordinated public release of advisory


This vulnerability was discovered by:
    Andrea Micalizzi aka rgod