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Rewterz Threat Advisory – CVE-2021-43557 – Apache APISIX Directory Vulnerability

Severity

Medium

Analysis Summary

CVE-2021-43557 

Apache APISIX could allow a remote attacker to traverse directories on the system, caused by improper validation of user requests. An attacker could send a specially-crafted URL request containing “dot dot” sequences (/../) in the request_uri parameter to view arbitrary files on the system.

Impact

  • Remote Code Execution

Affected Vendors

Apache

Affected Products

  • Apache APISIX 2.10

Remediation

Upgrade to the latest version of Apache APISIX, available from the Apache Web site.

https://apisix.apache.org/

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