CVE-2022-46175

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Summary

CVECVE-2022-46175
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-12-24 04:15:00 UTC
Updated2023-11-26 01:15:00 UTC
DescriptionJSON5 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.

Risk And Classification

Problem Types: CWE-1321

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 37 All All All
Application Json5 Json5 All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 37 Update: pgadmin4-6.19-1.fc37 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Prototype Pollution in JSON5 · Issue #295 · json5/json5 · GitHub MISC github.com
Prototype Pollution in JSON5 via Parse Method · Advisory · json5/json5 · GitHub MISC github.com
Backport fix for CVE-2022-46175 to v1 by ashkulz · Pull Request #298 · json5/json5 · GitHub MISC github.com
[SECURITY] Fedora 37 Update: pgadmin4-6.19-1.fc37 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Should __proto__ property be treated specially? · Issue #199 · json5/json5 · GitHub MISC github.com
[SECURITY] [DLA 3665-1] node-json5 security update lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 183810 Debian Security Update for node-json5 (CVE-2022-46175)
  • 283651 Fedora Security Update for pgadmin4 (FEDORA-2023-e7297a4aeb)
  • 378599 Splunk Enterprise Third Party Package Updates for June (SVD-2023-0613)
  • 378883 Splunk Enterprise August Third Party Package Updates (SVD-2023-0808)
  • 6000346 Debian Security Update for node-json5 (DLA 3665-1)
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