Advisory Details

May 18th, 2018

Advantech WebAccess Node BWSCADASoap GraphListByNode SQL Injection Information Disclosure Vulnerability

ZDI-18-486
ZDI-CAN-5650

CVE ID CVE-2018-7501
CVSS SCORE 4, (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 handling of the GraphListByNode function in BWMobileService.dll. When parsing the ProjectName or ProjIdbw parameters, 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
  • 2018-02-09 - Vulnerability reported to vendor
  • 2018-05-18 - Coordinated public release of advisory
  • 2018-05-18 - Advisory Updated
CREDIT rgod
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