CVE-2022-46175
CVSS V2 None
CVSS V3 None
Description
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.
Overview
- CVE ID
- CVE-2022-46175
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-12-24T04:15:08
- Last Modified Date
- 2023-02-28T18:36:31
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:json5:json5:*:*:*:*:*:node.js:*:* | 1 | OR | 2.2.2 |
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/json5/json5/issues/199 | Issue Tracking Patch Third Party Advisory |
| https://github.com/json5/json5/issues/295 | Issue Tracking Third Party Advisory |
| https://github.com/json5/json5/pull/298 | Patch Third Party Advisory |
| https://github.com/json5/json5/security/advisories/GHSA-9c47-m6qq-7p4h | Exploit Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3S26TLPLVFAJTUN3VIXFDEBEXDYO22CE/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-46175 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-46175 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-12-24 05:15:34 | Added to TrackCVE | |||
| 2022-12-24 05:15:35 | Weakness Enumeration | new | ||
| 2022-12-25 02:16:04 | 2022-12-25T02:07:49 | CVE Modified Date | updated | |
| 2022-12-25 02:16:04 | Received | Awaiting Analysis | Vulnerability Status | updated |
| 2022-12-29 16:14:58 | Awaiting Analysis | Undergoing Analysis | Vulnerability Status | updated |
| 2022-12-30 22:15:29 | 2022-12-30T22:04:42 | CVE Modified Date | updated | |
| 2022-12-30 22:15:29 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |
| 2022-12-30 22:15:34 | CPE Information | updated | ||
| 2023-01-03 18:17:02 | 2023-01-03T17:15:10 | CVE Modified Date | updated | |
| 2023-01-03 18:17:02 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-01-03 18:17:03 | 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 version `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 version 2.2.2 and later. | 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. | Description | updated |
| 2023-01-03 18:17:06 | References | updated | ||
| 2023-01-09 20:19:55 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-01-20 21:13:46 | 2023-01-20T20:10:35 | CVE Modified Date | updated | |
| 2023-01-20 21:13:46 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |
| 2023-01-30 03:17:26 | 2023-01-30T03:15:09 | CVE Modified Date | updated | |
| 2023-01-30 03:17:26 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-01-30 03:17:27 | References | updated | ||
| 2023-01-30 17:14:36 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-02-28 20:13:43 | 2023-02-28T18:36:31 | CVE Modified Date | updated | |
| 2023-02-28 20:13:43 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |