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CVE-2023-25576— @fastify/multipart vulnerable to DoS due to unlimited number of parts

Quick assessment

Affected
fastify fastify-multipart
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

fastify-multipart是一款支持解析多个内容类型的软件包。 fastify-multipart 6.0.1之前版本、7.0.0之前版本、7.4.1之前版本存在安全漏洞，该漏洞源于接受无限数量的文件部分的multipart 主体解析器，接受无限数量的字段部分的multipart 主体解析器，以及接受无限数量的空部分作为字段部分的multipart 主体解析器，导致拒绝服务。

CVSS 7.5 · High EPSS 1.46% · P73

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2023-25576

Vulnerability Information
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Vulnerability Title
@fastify/multipart vulnerable to DoS due to unlimited number of parts
Source: CVE Program / CVE List V5
Vulnerability Description
@fastify/multipart is a Fastify plugin to parse the multipart content-type. Prior to versions 7.4.1 and 6.0.1, @fastify/multipart may experience denial of service due to a number of situations in which an unlimited number of parts are accepted. This includes the multipart body parser accepting an unlimited number of file parts, the multipart body parser accepting an unlimited number of field parts, and the multipart body parser accepting an unlimited number of empty parts as field parts. This is fixed in v7.4.1 (for Fastify v4.x) and v6.0.1 (for Fastify v3.x). There are no known workarounds.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
fastify-multipart 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
fastify-multipart是一款支持解析多个内容类型的软件包。 fastify-multipart 6.0.1之前版本、7.0.0之前版本、7.4.1之前版本存在安全漏洞，该漏洞源于接受无限数量的文件部分的multipart 主体解析器，接受无限数量的字段部分的multipart 主体解析器，以及接受无限数量的空部分作为字段部分的multipart 主体解析器，导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
fastify fastify-multipart < 6.0.1 -

II. Public POCs for CVE-2023-25576

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III. Intelligence Information for CVE-2023-25576

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Patches & Fixes for CVE-2023-25576 (1)

Vendor Advisories for CVE-2023-25576 (1)

Other References for CVE-2023-25576 (3)

IV. Related Vulnerabilities

Same product: fastify-multipart
Same vendor: fastify
Same weakness: CWE-770

V. Comments for CVE-2023-25576

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