Stack-based buffer overflow in Moxa products - CVE-2019-9099

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the built-in web server. A remote unauthenticated attacker can trigger stack-based buffer overflow, perform a denial of service (DoS) attack and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

How to mitigate CVE-2019-9099

Sources

• https://ics-cert.us-cert.gov/advisories/icsa-20-056-01
• https://www.moxa.com/en/support/support/security-advisory/mb3710-3180-3270-3280-3480-3660-vulnerabilities