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CWE - 647 : Use of Non-Canonical URL Paths for Authorization Decisions

CWE Definition http://cwe.mitre.org/data/definitions/647.html
Number of vulnerabilities: 0
Description The software defines policy namespaces and makes authorization decisions based on the assumption that a URL is canonical. This can allow a non-canonical URL to bypass the authorization.If an application defines policy namespaces and makes authorization decisions based on the URL, but it does not require or convert to a canonical URL before making the authorization decision, then it opens the application to attack. For example, if the application only wants to allow access to http://www.example.com/mypage, then the attacker might be able to bypass this restriction using equivalent URLs such as:
Background Details
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