IBM WebSphere Application Server (WAS) 6.1 before 188.8.131.52, 7.0 before 184.108.40.206, 8.0 before 220.127.116.11, and 8.5 before 18.104.22.168 on Linux, Solaris, and HP-UX, when a Local OS registry is used, does not properly validate user accounts, which allows remote attackers to bypass intended access restrictions via unspecified vectors.
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.