Cyber Resilience

CVE-2024-38472

SSRF in Apache Http Server 2.4.0 – 2.4.60

High EPSSSSRF
Published
01 July 2024
Modified
01 July 2025
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.69 99.3th percentile
Risk Priority 83 floored blend · peak EPSS

Summary

CVE-2024-38472 is a high-severity SSRF (CWE-918) vulnerability in Apache Http Server. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 0.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-4 (Information Flow Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-38472 is a server-side request forgery vulnerability in Apache HTTP Server on Windows that can be triggered through malicious requests or content. The flaw, assigned CWE-918, affects the server's handling of UNC paths and allows an attacker-controlled destination to receive NTLM authentication material. It is rated 7.5 under CVSS 3.1 with a vector of AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. The issue is resolved in version 2.4.60.

An unauthenticated remote attacker can supply crafted input that causes the server to initiate an outbound request to an attacker-controlled system. When the server attempts to access a UNC path during request processing, the resulting NTLM hash material can be captured by the malicious endpoint, resulting in disclosure of sensitive Windows credentials without any user interaction.

Advisories from the Apache project and NetApp recommend upgrading to 2.4.60. Administrators whose configurations rely on UNC paths must also define the new "UNCList" directive to explicitly permit the required access after the upgrade; otherwise such paths will be blocked.

The EPSS score has remained near its observed peak of 0.9167 with a current value of 0.9067.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

SSRF in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via SSRF and malicious requests or content Users are recommended to upgrade to version 2.4.60 which fixes this issue. Note: Existing configurations that…

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access UNC paths will have to configure new directive "UNCList" to allow access during request processing.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-38473Same product: Apache Http Server
CVE-2024-39573Same product: Apache Http Server
CVE-2024-28752Same product class: NAS / storage appliance
CVE-2024-36387Same product: Apache Http Server
CVE-2025-26515Same product class: NAS / storage appliance
CVE-2026-22050Same product: Netapp Ontap
CVE-2024-38474Same product: Apache Http Server
CVE-2024-27316Same product: Apache Http Server
CVE-2021-40438Same product: Apache Http Server
CVE-2020-13379Same product class: NAS / storage appliance

Affected Assets

apache
http server
2.4.0 — 2.4.60
netapp
ontap
9

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.3.6
  • V1.5.3
  • V5.3.2
  • V10.4.7

Mitigating Controls (NIST 800-53 r5) AI

Information flow enforcement can restrict which destinations the server is allowed to contact on behalf of users.

Input validation directly stops untrusted URLs from being accepted and fetched without destination checks.

Boundary protection limits the network reach of server-initiated requests even if SSRF occurs.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly include input validation and destination allow-listing that prevent SSRF.

DE.CM-09 partial match
prevents

Runtime monitoring of web applications and services can detect anomalous outbound requests indicative of SSRF.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover and record SSRF flaws in web applications.

PR.IR-01 partial match
prevents

Network segmentation and egress controls can limit the damage from successful SSRF requests.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Operational threat data describing SSRF campaigns can be used to tighten outbound-request allow-lists and detection rules before attackers exploit them.

References