CVE-2022-21803

Public Exploit
Prototype Pollution

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.

Category

7.3
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.11%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io
Affected: n/a nconf
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-NCONF-2395478 third party advisory exploit
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2632450 third party advisory exploit
https://github.com/indexzero/nconf/pull/397 patch third party advisory issue tracking
https://github.com/indexzero/nconf/releases/tag/v0.11.4 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2022-21803?
CVE-2022-21803 has been scored as a high severity vulnerability.
How to fix CVE-2022-21803?
To fix CVE-2022-21803, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21803 being actively exploited in the wild?
It is possible that CVE-2022-21803 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21803?
CVE-2022-21803 affects n/a nconf.
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