Advisory Details

December 2nd, 2015

Unitronics VisiLogic OPLC IDE TeePreviewer.ITeePreviewer ActiveX Control ChartLink Remote Code Execution Vulnerability

ZDI-15-577
ZDI-CAN-2911

CVE ID CVE-2015-6478
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Unitronics
AFFECTED PRODUCTS VisiLogic OPLC IDE
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 19817. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Unitronics VisiLogic OPLC IDE. 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 TeePreviewer object in TeeChart5.ocx. The ChartLink accessor of the object takes a user-supplied integer and interprets it as an address, which can cause arbitrary memory to be interpreted as an object. An attacker can leverage this vulnerability to execute arbitrary code under the context of the user.

VENDOR RESPONSE Unitronics has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-15-274-02
DISCLOSURE TIMELINE
  • 2015-04-30 - Vulnerability reported to vendor
  • 2015-12-02 - Coordinated public release of advisory
CREDIT Steven Seeley of Source Incite
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