CVE-2024-43394

10.07.2025, 17:15

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.

SSRF

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	UNKNOWN				---
apache	CNA	---				---

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 6%

Debian Releases

Debian Product

Codename

apache2

bullseye	2.4.62-1~deb11u1 fixed
bullseye (security)	2.4.62-1~deb11u2 fixed
bookworm	2.4.62-1~deb12u2 fixed
bookworm (security)	2.4.62-1~deb12u2 fixed
trixie	2.4.63-1 fixed
sid	2.4.64-1 fixed

Ubuntu Releases

Ubuntu Product

Codename

apache2

plucky	needs-triage
noble	needs-triage
jammy	needs-triage
focal	needs-triage
bionic	needs-triage
xenial	needs-triage
trusty	needs-triage

Common Weakness Enumeration

CWE-918 - Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Vulnerability Media Exposure

[GERMAN] Apache HTTP Server: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Apache HTTP Server ausnutzen, um einen Denial of Service Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, um Informationen offenzulegen, und um Dateien zu manipulieren.
Published: 2025-07-10T22:00:00+00:00

References

https://httpd.apache.org/security/vulnerabilities_24.html