Advisory Details

August 13th, 2015

Moxa VPort ActiveX SDK PLUS GetClientReg Name Parameter Stack Buffer Overflow Remote Code Execution Vulnerability

ZDI-15-392
ZDI-CAN-2525

CVE ID CVE-2015-0986
CVSS SCORE 7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Moxa
AFFECTED PRODUCTS VPort ActiveX SDK PLUS
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 16895. 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 VPort ActiveX SDK PLUS. 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 VPORTSDK.VPortSDKCtrl.1 ActiveX control. By passing an overly long string to the GetClientReg method's Name parameter, an attacker can overflow a buffer on the stack. This vulnerability could be used to execute arbitrary code in the context of the browser.

ADDITIONAL DETAILS Moxa has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-15-097-01
DISCLOSURE TIMELINE
  • 2015-02-05 - Vulnerability reported to vendor
  • 2015-08-13 - Coordinated public release of advisory
CREDIT Ariele Caltabiano (kimiya)
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