Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-43394

Severity CVSS v4.0:
Pending analysis
Type:
CWE-918 Server-Side Request Forgery (SSRF)
Publication date:
10/07/2025
Last modified:
29/07/2025

Description

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

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* 2.4.0 (including) 2.4.64 (excluding)
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools