CVE-2021-22658: Advantech iView UserServlet SQL Injection Privilege Escalation Vulnerability
Advantech iView versions prior to v5.7.03.6112 are vulnerable to a SQL injection, which may allow an attacker to escalate privileges to 'Administrator'.
Other sources
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.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-22658.
What is the severity of CVE-2021-22658?
The severity of CVE-2021-22658 is critical with a severity value of 9.8.
Which software is affected by CVE-2021-22658?
CVE-2021-22658 affects Advantech iView versions up to and excluding 5.7.03.6112.
How can an attacker exploit CVE-2021-22658?
An attacker can exploit CVE-2021-22658 by escalating privileges on affected installations of Advantech iView through a SQL injection vulnerability in the UserServlet class.
Are there any advisories or references available for CVE-2021-22658?
Yes, there are advisories and references available for CVE-2021-22658. You can find them at the following links: - [US-CERT Advisory](https://us-cert.cisa.gov/ics/advisories/icsa-21-040-02) - [Zero Day Initiative Advisory](https://www.zerodayinitiative.com/advisories/ZDI-21-191/)