Advisory Details

May 4th, 2017

Advantech WebAccess odbcPg4 Absolute Path Traversal File Denial of Service Vulnerability

CVE ID	CVE-2017-7929
CVSS SCORE	6.8, AV:N/AC:L/Au:S/C:N/I:N/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 ['25380']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to cause a denial of service condition on vulnerable installations of Advantech WebAccess. Authentication is required to exploit this vulnerability. The specific flaw exists within odbcPg4.asp. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to overwrite key web files which will disable functionality on the target machine.
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-17-124-03
DISCLOSURE TIMELINE	2016-10-17 - Vulnerability reported to vendor 2017-05-04 - Coordinated public release of advisory
CREDIT	Zhou Yu

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