CVE-2022-21803 Prototype Pollution

2022-04-1200:00:00

snyk

www.cve.org

7.3 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P

7.6 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.8%

JSON

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.

CNA Affected

[
  {
    "product": "nconf",
    "vendor": "n/a",
    "versions": [
      {
        "lessThan": "0.11.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]