Advisory Details

February 5th, 2016

Advantech WebAccess datacore Service datacore.exe ExtDataSize Integer Overflow Remote Code Execution Vulnerability

ZDI-16-104
ZDI-CAN-3197

CVE ID CVE-2016-0859
CVSS SCORE 9.3, (AV:N/AC:M/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Advantech
AFFECTED PRODUCTS WebAccess
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 21171. 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 instances of Advantech WebAccess. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the implementation of the 0x791E IOCTL in the Kernel subsystem. An integer overflow for alloc size vulnerability exists. An attacker can use this vulnerability to execute arbitrary code in the context of an administrator of the system.

ADDITIONAL DETAILS Advantech has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-16-014-01
DISCLOSURE TIMELINE
  • 2015-09-17 - Vulnerability reported to vendor
  • 2016-02-05 - Coordinated public release of advisory
CREDIT Anonymous
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