Advisory Details

February 6th, 2018

Advantech WebAccess Node chkLogin2 user SQL Injection Information Disclosure Vulnerability

ZDI-18-143
ZDI-CAN-5502

CVE ID CVE-2018-5443
CVSS SCORE 5, (AV:N/AC:L/Au:N/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. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of the user parameter in chkLogin2.asp. The issue results from the lack of proper validation of 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.

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-18-023-01
DISCLOSURE TIMELINE
  • 2017-12-19 - Vulnerability reported to vendor
  • 2018-02-06 - Coordinated public release of advisory
  • 2018-02-06 - Advisory Updated
CREDIT rgod
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