CVE-2021-43557 (GCVE-0-2021-43557)

Vulnerability from cvelistv5 – Published: 2021-11-22 08:25 – Updated: 2024-08-04 04:03
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
  • Use Nginx's $request_uri variable without verification
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache APISIX Affected: 1.5 , < Apache APISIX 1.5* (custom)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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