CVE-2022-21803

Public on

Last Modified: UTC

Description

A flaw was found in the nconf library when setting the configuration properties. This flaw allows an attacker to provide a crafted property, leading to prototype object pollution.

A flaw was found in the nconf library when setting the configuration properties. This flaw allows an attacker to provide a crafted property, leading to prototype object pollution.

Additional information

  • Bugzilla 2074689: nconf: Prototype pollution in memory store
  • CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
  • FAQ: Frequently asked questions about CVE-2022-21803

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown
Red HatNVD

CVSS v3 Base Score

7.3

7.5

Attack Vector

Network

Network

Attack Complexity

Low

Low

Privileges Required

None

None

User Interaction

None

None

Scope

Unchanged

Unchanged

Confidentiality Impact

Low

None

Integrity Impact

Low

High

Availability Impact

Low

None

CVSS v3 Vector

Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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

Understanding the Weakness (CWE)

CWE-1321

Integrity

Technical Impact: Modify Application Data

An attacker can inject attributes that are used in other components.

Availability

Technical Impact: DoS: Crash, Exit, or Restart

An attacker can override existing attributes with ones that have incompatible type, which may lead to a crash.

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

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