Advisory Details

July 18th, 2014

Advantech WebAccess Remote Authentication Bypass Vulnerability

CVE ID	CVE-2014-2367
CVSS SCORE	7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS	Advantech
AFFECTED PRODUCTS	Advantech WebAccess
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['13447']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to bypass authentication requirements on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ChkCookieNoRedir function. By providing arbitrary values to certain fields, an attacker can receive a session authentication cookie despite receiving an error message.
ADDITIONAL DETAILS	Advantech has issued an update to correct this vulnerability. More details can be found at: http://ics-cert.us-cert.gov/advisories/ICSA-14-198-02
DISCLOSURE TIMELINE	2014-04-23 - Vulnerability reported to vendor 2014-07-18 - Coordinated public release of advisory
CREDIT	John Leitch

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