SB2019012511 - Multiple vulnerabilities in Advantech WebAccess

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Improper authentication (CVE-ID: CVE-2019-6519)

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper authentication. A remote attacker can bypass authentication to upload malicious data.

2) Authentication bypass (CVE-ID: CVE-2019-6521)

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper authentication. A remote attacker can send a specially crafted request and bypass authentication to obtain and manipulate sensitive information.

3) SQL injection (CVE-ID: CVE-2019-6523)

The vulnerability allows a remote attacker to execute arbitrary SQL commands in web application database.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can send a specially crafted HTTP request to vulnerable script and execute arbitrary SQL commands in web application database.

Successful exploitation of the vulnerability may allow an attacker to gain administrative access to vulnerable web application.

Remediation

Install update from vendor's website.

References

• https://ics-cert.us-cert.gov/advisories/ICSA-19-024-01