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Path Traversal occurrences in Smart Evision
Smart eVision has a path traversal vulnerability in the Report API function due to insufficient filtering for special characters in URLs. A remote attacker with general user privilege can exploit this vulnerability to bypass authentication, access restricted paths and download system files. (2022-09-28, CVE-2022-39034)
Smart eVision’s file acquisition function has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated remote attacker can exploit this vulnerability to bypass authentication, access restricted paths to download and delete arbitrary system files to disrupt service. (2022-09-28, CVE-2022-39033)
Why Path Traversal can be dangerous
Relative Path Confusion means that your web server is configured to serve responses to ambiguous URLs. This configuration can possibly cause confusion about the correct relative path for the URL. It is also an issue of resources, such as images, styles etc., which are specified in the response using relative path, not the absolute URL.
If the web browser permits to parse "cross-content" response, the attacker may be able to fool the web browser into interpreting HTML into other content types, which can then lead to a cross site scripting attack (link do XSS).