CVE-2021-43557
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-43557
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43557.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-43557
- Aliases
- Published
- 2021-11-22T09:15:07Z
- Modified
- 2025-01-14T10:00:35.362449Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
The uri-block plugin in Apache APISIX before 2.10.2 uses $requesturi without verification. The $requesturi 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. - References