Vulnerability · Published Jul 19, 2023 · Assigned by GitHub_M

CVE-2023-37899feathersjs socket handler allows abusing implicit toString

High 7.5

In plain English

A high-severity security flaw in feathers from feathersjs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.2%top 32.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. Feathers socket handler did not catch invalid string conversion errors like `const message = ${{ toString: '' }}` which would cause the NodeJS process to crash when sending an unexpected Socket.io message like `socket.emit('find', { toString: '' })`. A fix has been released in versions 5.0.8 and 4.5.18. Users are advised to upgrade. There is no known workaround for this vulnerability.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@feathersjs/socketio4.5.18GHSA-hhr9-rh25-hvf9
npm@feathersjs/socketio5.0.8GHSA-hhr9-rh25-hvf9
npm@feathersjs/transport-commons4.5.18GHSA-hhr9-rh25-hvf9
npm@feathersjs/transport-commons5.0.8GHSA-hhr9-rh25-hvf9

Affected products (as reported)

VendorProductVersions
feathersjs feathers < 4.5.18>= 5.0.0, < 5.0.8

Weakness: CWE-754 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References