CVE-2022-46175 (High) detected in json5-0.5.1.tgz
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CVE-2022-46175 - High Severity Vulnerability
Vulnerable Library - json5-0.5.1.tgz
JSON for the ES5 era.
Library home page: https://registry.npmjs.org/json5/-/json5-0.5.1.tgz
Path to dependency file: /PrestaShop/tests/Selenium/package.json
Path to vulnerable library: /admin-dev/node_modules/json5/package.json,/admin-dev/node_modules/json5/package.json
Dependency Hierarchy:
- babel-register-6.26.0.tgz (Root Library)
- babel-core-6.26.0.tgz
- ❌ json5-0.5.1.tgz (Vulnerable Library)
- babel-core-6.26.0.tgz
Found in HEAD commit: bb7465065dfeed9f49bb99b6901ab933563af739
Found in base branch: develop
Vulnerability Details
JSON5 is an extension to the popular JSON file format that aims to be easier to write and maintain by hand (e.g. for config files). The parse
method of the JSON5 library before and including versions 1.0.1 and 2.2.1 does not restrict parsing of keys named __proto__
, allowing specially crafted strings to pollute the prototype of the resulting object. This vulnerability pollutes the prototype of the object returned by JSON5.parse
and not the global Object prototype, which is the commonly understood definition of Prototype Pollution. However, polluting the prototype of a single object can have significant security impact for an application if the object is later used in trusted operations. This vulnerability could allow an attacker to set arbitrary and unexpected keys on the object returned from JSON5.parse
. The actual impact will depend on how applications utilize the returned object and how they filter unwanted keys, but could include denial of service, cross-site scripting, elevation of privilege, and in extreme cases, remote code execution. JSON5.parse
should restrict parsing of __proto__
keys when parsing JSON strings to objects. As a point of reference, the JSON.parse
method included in JavaScript ignores __proto__
keys. Simply changing JSON5.parse
to JSON.parse
in the examples above mitigates this vulnerability. This vulnerability is patched in json5 versions 1.0.2, 2.2.2, and later.
Publish Date: 2022-12-24
URL: CVE-2022-46175
CVSS 3 Score Details (8.8)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2022-46175
Release Date: 2022-12-24
Fix Resolution: json5 - 2.2.2
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