GHSA-C4W7-XM78-47VH
Vulnerability from github – Published: 2021-03-29 16:05 – Updated: 2023-09-07 20:22
VLAI
Summary
Prototype Pollution in y18n
Details
Overview
The npm package y18n before versions 3.2.2, 4.0.1, and 5.0.5 is vulnerable to Prototype Pollution.
POC
const y18n = require('y18n')();
y18n.setLocale('__proto__');
y18n.updateLocale({polluted: true});
console.log(polluted); // true
Recommendation
Upgrade to version 3.2.2, 4.0.1, 5.0.5 or later.
Severity
7.3 (High)
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "y18n"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "y18n"
},
"ranges": [
{
"events": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.0.0"
]
},
{
"package": {
"ecosystem": "npm",
"name": "y18n"
},
"ranges": [
{
"events": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.0.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-7774"
],
"database_specific": {
"cwe_ids": [
"CWE-1321",
"CWE-20",
"CWE-915"
],
"github_reviewed": true,
"github_reviewed_at": "2021-03-12T21:23:11Z",
"nvd_published_at": "2020-11-17T13:15:00Z",
"severity": "HIGH"
},
"details": "### Overview\n\nThe npm package `y18n` before versions 3.2.2, 4.0.1, and 5.0.5 is vulnerable to Prototype Pollution. \n\n### POC\n\n```js\nconst y18n = require(\u0027y18n\u0027)();\n\ny18n.setLocale(\u0027__proto__\u0027);\ny18n.updateLocale({polluted: true});\n\nconsole.log(polluted); // true\n```\n\n### Recommendation\n\nUpgrade to version 3.2.2, 4.0.1, 5.0.5 or later.",
"id": "GHSA-c4w7-xm78-47vh",
"modified": "2023-09-07T20:22:08Z",
"published": "2021-03-29T16:05:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7774"
},
{
"type": "WEB",
"url": "https://github.com/yargs/y18n/issues/96"
},
{
"type": "WEB",
"url": "https://github.com/yargs/y18n/pull/108"
},
{
"type": "WEB",
"url": "https://github.com/yargs/y18n/commit/90401eea9062ad498f4f792e3fff8008c4c193a3"
},
{
"type": "WEB",
"url": "https://github.com/yargs/y18n/commit/a9ac604abf756dec9687be3843e2c93bfe581f25"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
},
{
"type": "PACKAGE",
"url": "https://github.com/yargs/y18n"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038306"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JS-Y18N-1021887"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "Prototype Pollution in y18n"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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