Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') Affecting simple-git package, versions <3.5.0


0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.31% (70th percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-JS-SIMPLEGIT-2434306
  • published 29 Mar 2022
  • disclosed 28 Mar 2022
  • credit Liran Tal of Snyk

How to fix?

Upgrade simple-git to version 3.5.0 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 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') due to an incomplete fix of CVE-2022-24433 which only patches against the git fetch attack vector. A similar use of the --upload-pack feature of git is also supported for git clone, which the prior fix didn't cover.

PoC

const simpleGit = require('simple-git')
const git2 = simpleGit()
git2.clone('file:///tmp/zero123', '/tmp/example-new-repo', ['--upload-pack=touch /tmp/pwn']);