CVE-2024-43394

Description

Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via mod_rewrite or apache expressions that pass unvalidated request input. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.63. Note: The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. The server offers limited protection against administrators directing the server to open UNC paths. Windows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.

PUBLISHED Reserved 2024-08-12 | Published 2025-07-10 | Updated 2025-11-04 | Assigner apache

Problem types

CWE-918 Server-Side Request Forgery (SSRF)

Product status

Timeline

Credits

Kainan Zhang (@4xpl0r3r) from Fortinet finder

References

lists.debian.org/debian-lts-announce/2025/08/msg00009.html

www.openwall.com/lists/oss-security/2025/07/10/2

www.openwall.com/lists/oss-security/2025/07/10/5

httpd.apache.org/security/vulnerabilities_24.html vendor-advisory

cve.org (CVE-2024-43394)

nvd.nist.gov (CVE-2024-43394)

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