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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2021-11-22T08:25:09

Updated: 2024-08-04T04:03:07.927Z

Reserved: 2021-11-09T00:00:00

Link: CVE-2021-43557

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-11-22T09:15:07.627

Modified: 2021-11-26T15:47:02.063

Link: CVE-2021-43557

cve-icon Redhat

No data.