TippingPoint Zero Day Initiative
 

Unitronics UniDownloader and Unitronics VisiLogic OPLC IDE IPWorksSSL.HTTPS.1 ActiveX Control PostDataB/FirewallDataB Properties Remote Code Execution Vulnerability

ZDI-15-576: December 2nd, 2015

CVE ID

CVSS Score

Affected Vendors

Affected Products

    UniDownloader
    VisiLogic OPLC IDE

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Unitronics UniDownloader and 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 processing of the PostDataB and FirewallDataB properties of the IPWorksSSL.HTTPS.1 ActiveX control. Both properties take a value from the script and treat it as the address of a SafeArray and then process information from the SafeArray structure. An attacker can leverage this type confusion to execute arbitrary code under the context of the process.

Vendor Response

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

Disclosure Timeline

    2015-05-28 - Vulnerability reported to vendor
    2015-12-02 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Andrea Micalizzi (rgod)