Advisory Details

February 5th, 2016

Advantech WebAccess Dashboard Viewer openWidget Directory Traversal Information Disclosure Vulnerability

ZDI-16-126
ZDI-CAN-3133

CVE ID CVE-2016-0855
CVSS SCORE 7.8, (AV:N/AC:L/Au:N/C:C/I:N/A:N)
AFFECTED VENDORS Advantech
AFFECTED PRODUCTS WebAccess
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 20812. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to disclose arbitrary file contents on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the WebAccess Dashboard Viewer. Insufficient validation within the openWidget script allows unauthenticated callers to read the content of arbitrary files on the WebAccess server.

VENDOR RESPONSE 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
  • 2015-09-15 - Vulnerability reported to vendor
  • 2016-02-05 - Coordinated public release of advisory
CREDIT kimiya & rgod
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