CVE-2021-40438

CVSS 3.1 Score 9.0 of 10 (high)

Details

Published Sep 16, 2021
Updated: Nov 7, 2023
CWE ID 918

Summary

CVE-2021-40438 is a vulnerability that affects Apache HTTP Server version 2.4.48 and earlier. It is categorized as a Server Side Request Forgery (SSRF) vulnerability, with a base severity rating of CRITICAL and a base score of 9.0 according to NVD@NIST. The vulnerability allows a remote user to craft a request uri-path that can cause mod_proxy to forward the request to an origin server chosen by the attacker. This can lead to potential dangers for organizations, including partial confidentiality and integrity impact, as well as network access complexity and high availability impact. Remediation for this vulnerability involves updating Apache HTTP Server to version 2.4.49 or later, which includes the necessary security patches to address the SSRF vulnerability (CWE-918).

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