Unitronics VisiLogic OPLC IDE TChart.ITChart ActiveX Control RemoveSeries Remote Code Execution VulnerabilityZDI-15-578: December 2nd, 2015
VisiLogic OPLC IDE
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 19815. For further product information on the TippingPoint IPS:
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 TeeChart object in TeeChart5.ocx. The RemoveSeries method of the object takes a user-supplied integer as an index into an array of object pointers. The index is not checked for validity and this 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 ResponseUnitronics has issued an update to correct this vulnerability. More details can be found at:
2015-04-30 - Vulnerability reported to vendor
2015-12-02 - Coordinated public release of advisory
CreditThis vulnerability was discovered by:
Steven Seeley of Source Incite