CVE-2021-20517

Name of the Vulnerable Software and Affected Versions: IBM WebSphere Application Server Network Deployment versions 8.5 through 9.0

Description: The issue allows a remote authenticated attacker to traverse directories by sending a specially-crafted URL request containing dot dot sequences (/../) to read and delete arbitrary files on the system.

Recommendations: For IBM WebSphere Application Server Network Deployment versions 8.5 through 9.0, consider restricting access to sensitive files and directories to minimize the risk of exploitation. As a temporary workaround, consider implementing additional validation and sanitization of URL requests to prevent directory traversal attacks. At the moment, there is no information about a newer version that contains a fix for this vulnerability.