Advisory Details

December 2nd, 2015

Unitronics UniDownloader and Unitronics VisiLogic OPLC IDE IPWorksSSL.HTTPS.1 ActiveX Control WinSockPath Property Remote Code Execution Vulnerability

CVE ID	CVE-2015-7905
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Unitronics Unitronics
AFFECTED PRODUCTS	UniDownloader VisiLogic OPLC IDE
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Unitronics UniDownloader. 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 implementation of the WinSockPath property of the HTTPS ActiveX control. The control passes this property as the URL for a DLL to the LoadLibraryA API, which will automatically execute DllMain in the DLL. This can be leveraged by an attacker for remote code execution in the context of the process.
ADDITIONAL DETAILS	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 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	2015-05-28 - Vulnerability reported to vendor 2015-12-02 - Coordinated public release of advisory
CREDIT	Andrea Micalizzi (rgod)

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