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CVE-2021-23597

Good to know:

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Date: February 11, 2022

This affects the package fastify-multipart before 5.3.1. By providing a name=constructor property it is still possible to crash the application. Note: This is a bypass of CVE-2020-8136 (https://security.snyk.io/vuln/SNYK-JS-FASTIFYMULTIPART-1290382).

Language: JS

Severity Score

Related Resources (8)

https://github.com/fastify/fastify-multipart/releases/tag/v5.3.1
https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning
https://github.com/fastify/fastify-multipart/pull/116
https://github.com/fastify/fastify-multipart/security/advisories/GHSA-qh73-qc3p-rjv2
https://nvd.nist.gov/vuln/detail/CVE-2021-23597
https://github.com/fastify/fastify-multipart/commit/a70dc7059a794589bd4fe066453141fc609e6066
https://github.com/fastify/fastify-multipart
https://www.mend.io/vulnerability-database/CVE-2021-23597

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption

CWE-400

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CWE-1321

Top Fix

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Upgrade Version

Upgrade to version fastify-multipart - 5.3.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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