CVE-2021-43557

CVE-2021-43557: falha em Apache APISIX

Path traversal in request_uri variable

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8Vexday Risk Score

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ssvc Trackepss 13%
The uri-block plugin in Apache APISIX before 2.10.2 uses $request_uri without verification. The $request_uri is the full original request URI without normalization. This makes it possible to construct a URI to bypass the block list on some occasions. For instance, when the block list contains "^/internal/", a URI like `//internal/` can be used to bypass it. Some other plugins also have the same issue. And it may affect the developer's custom plugin.