By exploiting a vulnerability in NPort IA5150A/IA5250A Series before version 1.5, a user with “Read Only” privilege level can send requests via the web console to have the device’s configuration changed.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27149
Reference (s):
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2021/05/11/klcert-20-018,
- URL: https://ics-cert.kaspersky.com/advisories/klcert-advisories/2021/05/11/klcert-20-018,
- https://www.moxa.com/en/support/product-support/security-advisory/nport-ia5000a-serial-device-servers-vulnerabilities
- URL: https://www.moxa.com/en/support/product-support/security-advisory/nport-ia5000a-serial-device-servers-vulnerabilities