CVE-2021-41773
CVSS 3.1 Score 7.5 of 10 (high)
Details
Summary
CVE-2021-41773 is a vulnerability affecting Apache HTTP Server 2.4.49, where a path traversal issue was discovered in a recent change to path normalization. An attacker can exploit this flaw to map URLs to files located outside the directories configured by Alias-like directives, potentially gaining unauthorized access to CGI scripts if not properly secured. This vulnerability has been observed in real-world attacks and is not present in earlier Apache versions. The fix implemented in Apache HTTP Server 2.4.50 was found to be incomplete, and additional mitigations are recommended.
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Affected Products
- Oracle Instantis Enterprisetrack
- Fedora Operating System
- Apache Software Foundation Apache HTTP Server
Affected Vendors
- Apache Software Foundation
- Fedora Project
- BonqDAO