ZDI-21-191: Advantech iView UserServlet SQL Injection Privilege Escalation Vulnerability
This vulnerability allows remote attackers to escalate privileges on affected installations of Advantech iView. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the UserServlet class. 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 escalate privileges and reset the password for the Admin user.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Advantech iView |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-21-191?
The severity of ZDI-21-191 is considered high due to the potential for privilege escalation.
How do I fix ZDI-21-191?
To fix ZDI-21-191, update Advantech iView to the latest version provided by the vendor.
What type of vulnerability is ZDI-21-191?
ZDI-21-191 is a privilege escalation vulnerability affecting Advantech iView.
Is authentication required to exploit ZDI-21-191?
Yes, authentication is required, but the existing mechanism can be bypassed.
What impact does ZDI-21-191 have on affected systems?
ZDI-21-191 allows remote attackers to gain elevated privileges on vulnerable installations.
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- alias/ZDI-21-191
- alias/ZDI-CAN-12344
- alias/CVE-2021-22658
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