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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXZoOTUtcm1nci02dzRt

Prototype Pollution in minimist

Affected versions of minimist are vulnerable to prototype pollution. Arguments are not properly sanitized, allowing an attacker to modify the prototype of Object, causing the addition or modification of an existing property that will exist on all objects.
Parsing the argument --__proto__.y=Polluted adds a y property with value Polluted to all objects. The argument --__proto__=Polluted raises and uncaught error and crashes the application.
This is exploitable if attackers have control over the arguments being passed to minimist.

Recommendation

Upgrade to versions 0.2.1, 1.2.3 or later.

Permalink: https://github.com/advisories/GHSA-vh95-rmgr-6w4m
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXZoOTUtcm1nci02dzRt
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 5 years ago
Updated: 12 months ago


CVSS Score: 5.6
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS Percentage: 0.00139
EPSS Percentile: 0.5002

Identifiers: GHSA-vh95-rmgr-6w4m, CVE-2020-7598
References: Repository: https://github.com/minimistjs/minimist
Blast Radius: 35.3

Affected Packages

npm:minimist
Dependent packages: 33,291
Dependent repositories: 2,004,702
Downloads: 211,058,171 last month
Affected Version Ranges: >= 1.0.0, < 1.2.3, < 0.2.1
Fixed in: 1.2.3, 0.2.1
All affected versions: 0.0.0, 0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.0.5, 0.0.6, 0.0.7, 0.0.8, 0.0.9, 0.0.10, 0.1.0, 0.2.0, 1.0.0, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2.0, 1.2.1, 1.2.2
All unaffected versions: 0.2.1, 0.2.2, 0.2.3, 0.2.4, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2.8