Advisory Details

May 18th, 2018

Advantech WebAccess Node controlNode bnid SQL Injection Information Disclosure Vulnerability

CVE ID	CVE-2018-7501
CVSS SCORE	4.0, AV:N/AC:L/Au:S/C:P/I:N/A:N
AFFECTED VENDORS	Advantech
AFFECTED PRODUCTS	WebAccess Node
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Advantech WebAccess Node. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the controlNode.asp page. When parsing the bnid parameter, the process does not properly validate a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to disclose sensitive information under the context of the database.
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-18-135-01
DISCLOSURE TIMELINE	2018-01-05 - Vulnerability reported to vendor 2018-05-18 - Coordinated public release of advisory 2018-05-18 - Advisory Updated
CREDIT	rgod

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