NetSight
high7.5

CVE-2023-37899

Feathers socket handler allows abusing implicit toString

Impact

### Impact Feathers socket handler did not catch invalid string conversion errors like: ```ts const message = `${{ toString: '' }}` ``` Causing the NodeJS process to crash when sending an unexpected Socket.io message like ```ts socket.emit('find', { toString: '' }) ``` ### Patches A fix has been released in - `v5.0.8` via #3241 - `v4.5.18` via #3242 ### Workarounds Since it is in the core Socket handling code upgrading to the latest version is necessary. ### References - [v5.0.8 Changelog](https://github.com/feathersjs/feathers/blob/dove/CHANGELOG.md#508-2023-07-19) - [v4.5.18 Changelog](https://github.com/feathersjs/feathers/blob/crow/CHANGELOG.md#4518-2023-07-19)

Affected packages

EcosystemPackageAffectedFixed in
npm@feathersjs/socketio<= 4.5.174.5.18
npm@feathersjs/transport-commons<= 4.5.174.5.18

Affected products

VendorProductAffected versions
FeathersjsFeathers
before 4.5.18
from 5.0.0 before 5.0.8

Weakness classification

References