CVE-2021-42013

Summary

CVE-2021-42013: A new vulnerability was discovered in Apache HTTP Server 2.4.50, which is an insufficient fix for the previously addressed CVE-2021-41773. An attacker can exploit this path traversal issue to map URLs to files outside the configured directories using Alias-like directives. If files are not secured with the usual default configuration "require all denied," attackers can gain access to these files. Moreover, if CGI scripts are enabled for these aliased paths, it could lead to remote code execution. This vulnerability affects only Apache 2.4.49 and 2.4.50.

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