Advantech WebAccess/NMS single-vlan-info SQL Injection Information Disclosure Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Advantech WebAccess/NMS. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of calls to the single-vlan-info endpoint. When parsing the ipAddress 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 information in the context of SYSTEM.
Additional Details
Advantech has issued an update to correct this vulnerability. More details can be found at:
https://www.us-cert.gov/ics/advisories/icsa-20-098-01
Disclosure Timeline
- 2019-11-22 - Vulnerability reported to vendor
- 2020-04-08 - Coordinated public release of advisory
Credit
rgod of 9sg
