EC-WEB FS-EZViewer(Web)'s query functionality lacks proper restrictions of user input, allowing remote attackers authenticated as regular user to inject SQL commands for reading, modifying, and deleting database records, as well as executing system commands. Attackers may even leverage the dbo privilege in the database for privilege escalation, elevating their privileges to administrator.
Solution:
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
| Link | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-7672-7eeac-1.html | third party advisory |