A vulnerability in the REST API of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to read any file on an affected system. The vulnerability is due to insufficient authorization and parameter validation checks. An attacker could exploit this vulnerability by sending a malicious API request with the authentication credentials of a low-privileged user. A successful exploit could allow the attacker to read any file on the affected system.
CWE-863 - Incorrect Authorization
Authorization is a security mechanism performed by an application to grant or deny access to the requested resources by verifying the privileges of the user. When an application lacks effective authorization mechanisms, it enables unauthorized users to gain unintended privileges and illegitimate access to resources. Such a vulnerability may result in exposure of sensitive information, denial of service, arbitrary code execution, and complete system takeover.