An Unprotected Transport of Credentials issue was discovered in ABB Ellipse 8.3 through Ellipse 8.9 released prior to December 2017 (including Ellipse Select). A vulnerability exists in the authentication of Ellipse to LDAP/AD using the LDAP protocol. An attacker could exploit the vulnerability by sniffing local network traffic, allowing the discovery of authentication credentials.

References

• https://nvd.nist.gov/vuln/detail/CVE-2017-16731
• https://ics-cert.us-cert.gov/advisories/ICSA-17-353-01