CVE-2024-57480

Critical

Published: 14 January 2025

Published

14 January 2025

Modified

27 May 2025

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0031 54.5th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-57480 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in H3C N12 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 45.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SC-14 (Public Access Protections) and SI-10 (Information Input Validation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly addresses the lack of length verification in POST requests to the AP configuration function, preventing buffer overflow exploitation.

SC-14 Public Access Protections good match

prevent

Protects the publicly accessible web server (/bin/webs) from specially crafted POST requests using web application firewalls or similar safeguards.

SI-16 Memory Protection partial match

prevent

Mitigates arbitrary code execution from buffer overflow via memory protections like DEP and ASLR, though it does not prevent the overflow itself.

MITRE ATT&CK Enterprise TechniquesAI

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.

attack.mitre.org →

Why these techniques?

Buffer overflow in public-facing web endpoint (/bin/webs) directly enables unauthenticated remote code execution on a network device.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the AP configuration function. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands by sending…

a POST request to /bin/webs.

Deeper analysisAI

CVE-2024-57480 is a buffer overflow vulnerability (CWE-120) in H3C N12 V100R005, caused by a lack of length verification in the AP configuration function. This flaw affects the web component of the device, specifically accessible via the /bin/webs endpoint.

An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted POST request to /bin/webs. Successful exploitation allows the attacker to crash the target device or execute arbitrary commands, with a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) reflecting its critical severity due to network accessibility, low attack complexity, and high impact on confidentiality, integrity, and availability.

Mitigation details are available in the vendor advisory at http://h3c.com, while a proof-of-concept exploit can be found at https://gist.github.com/XiaoCurry/16213a4d68f95f17cd0fc2cd07e78a90.