Description

This affects the package nconf before 0.11.4. When using the memory engine, it is possible to store a nested JSON representation of the configuration. The .set() function, that is responsible for setting the configuration properties, is vulnerable to Prototype Pollution. By providing a crafted property, it is possible to modify the properties on the Object.prototype.

Remediation

References

https://snyk.io/vuln/SNYK-JS-NCONF-2395478

https://github.com/indexzero/nconf/releases/tag/v0.11.4

https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2632450

https://github.com/indexzero/nconf/pull/397

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Severity

High

Classification

CWE-1321 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Tags

Exploit Third Party Advisory Release Notes Issue Tracking Patch