Vulnerability details

CVE-2024-43394

Apache Software Foundation Apache HTTP Server

Apache HTTP Server: SSRF on Windows due to UNC paths

CVSS 3.1
7.5High

Official 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.

CVSS scores

ScoreVersionSourceVector
7.5High 3.1 CISA ADP / Vulnrichment (CISA-ADP) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

VendorProductVersionsSource
Apache Software Foundation Apache HTTP Server 2.4.0 ≤ v ≤ 2.4.63 CVEProject cvelistV5 (CNA)

References and advisories

4
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Details

Published
2025-07-10
Last updated
2025-11-05
State
Published
Assigner (CNA)
apache

Exploit prediction (EPSS)

1.27%
Probability of exploitation in 30 days
70%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Partial

Weaknesses (CWE)

  • CWE-918
    Server-Side Request Forgery (SSRF)