lodash@4.17.4 vulnerabilities

Lodash modular utilities.

Direct Vulnerabilities

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

Automatically find and fix vulnerabilities affecting your projects. Snyk scans for vulnerabilities and provides fixes for free.
Fix for free
Vulnerability Vulnerable Version
  • H
Command Injection

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Command Injection via template.

PoC

var _ = require('lodash');

_.template('', { variable: '){console.log(process.env)}; with(obj' })()

How to fix Command Injection?

Upgrade lodash to version 4.17.21 or higher.

<4.17.21
  • M
Regular Expression Denial of Service (ReDoS)

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.

POC

var lo = require('lodash');

function build_blank (n) {
var ret = "1"
for (var i = 0; i < n; i++) {
ret += " "
}

return ret + "1";
}

var s = build_blank(50000)
var time0 = Date.now();
lo.trim(s)
var time_cost0 = Date.now() - time0;
console.log("time_cost0: " + time_cost0)

var time1 = Date.now();
lo.toNumber(s)
var time_cost1 = Date.now() - time1;
console.log("time_cost1: " + time_cost1)

var time2 = Date.now();
lo.trimEnd(s)
var time_cost2 = Date.now() - time2;
console.log("time_cost2: " + time_cost2)

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade lodash to version 4.17.21 or higher.

<4.17.21
  • H
Prototype Pollution

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Prototype Pollution via the setWith and set functions.

How to fix Prototype Pollution?

Upgrade lodash to version 4.17.17 or higher.

<4.17.17
  • H
Prototype Pollution

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Prototype Pollution. The function zipObjectDeep can be tricked into adding or modifying properties of the Object prototype. These properties will be present on all objects.

How to fix Prototype Pollution?

Upgrade lodash to version 4.17.20 or higher.

<4.17.20
  • H
Prototype Pollution

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Prototype Pollution. The function defaultsDeep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.

How to fix Prototype Pollution?

Upgrade lodash to version 4.17.12 or higher.

<4.17.12
  • M
Regular Expression Denial of Service (ReDoS)

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS). It parses dates using regex strings, which may cause a slowdown of 2 seconds per 50k characters.

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade lodash to version 4.17.11 or higher.

<4.17.11
  • H
Prototype Pollution

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Prototype Pollution. The functions merge, mergeWith, and defaultsDeep could be tricked into adding or modifying properties of Object.prototype. This is due to an incomplete fix to CVE-2018-3721.

How to fix Prototype Pollution?

Upgrade lodash to version 4.17.11 or higher.

<4.17.11
  • M
Prototype Pollution

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Prototype Pollution. The utilities function allow modification of the Object prototype. If an attacker can control part of the structure passed to this function, they could add or modify an existing property.

How to fix Prototype Pollution?

Upgrade lodash to version 4.17.5 or higher.

<4.17.5