Server-Side Request Forgery (SSRF)
An issue was discovered in Zoho ManageEngine Remote Access Plus 10.0.447. The service to test the mail-server configuration suffers from an authorization issue allowing a user with the Guest role (read-only access) to use and abuse it. One of the abuses allows performing network and port scan operations of the localhost or the hosts on the same network segment, aka SSRF.
CWE-918 - Server-Side Request Forgery (SSRF)
Server-side request forgery (SSRF) is a weakness that allows an attacker to send an arbitrary request, making it appear that the request was sent by the server. This request may bypass a firewall that would normally prevent direct access to the URL. The impact of this vulnerability can vary from unauthorized access to files and sensitive information to remote code execution.