Which role allows managing application properties within ServiceNow?

The role that allows managing application properties within ServiceNow is indeed the one associated with sn_sec_cmn.admin. This role provides extensive administrative capabilities, granting access to configured application properties, which include the ability to create, modify, and delete properties across applications.

Administration roles like sn_sec_cmn.admin are designed to handle overarching settings and configurations that impact how applications behave within the ServiceNow instance. This role is critical for maintaining the system's integrity and ensuring that properties align with organizational policies and requirements, which is essential for effective application management.

The other roles listed, while they may have specific functions related to vulnerabilities, do not encompass the broader administrative functionalities related to managing application properties. For instance, remediation_owner and vulnerability_admin primarily focus on managing vulnerabilities and remediation processes, whereas vulnerability_write is more limited in scope, dealing with the writing or editing of vulnerability records. They do not have the same breadth of access needed for managing application properties.