Not rated
CVE-2021-43557 The uri-block plugin in Apache APISIX before 2.10.2 uses $request_uri without verification
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache APISIX 1.5 | 1.5 → latest | No fix stated |
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