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Command Injection Affecting git-diff-apply package, versions <0.22.2

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.56% (78th percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-JS-GITDIFFAPPLY-540774
  • published 6 Jan 2020
  • disclosed 6 Jan 2020
  • credit JHU System Security Lab
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Introduced: 6 Jan 2020

CVE-2019-10776 Open this link in a new tab
CWE-78 Open this link in a new tab
First added by Snyk

How to fix?

Upgrade git-diff-apply to version 0.22.2 or higher.

Overview

git-diff-apply is a package that can be used to reach an unrelated remote repository to apply a git diff.

Affected versions of this package are vulnerable to Command Injection. In "index.js" file, line 240, the run command executes the git command with an user controlled variable called remoteUrl.

PoC by JHU System Security Lab

var root = require("git-diff-apply");
var attack_code = "&touch Song&";
root({"remoteUrl": "&touch Song&", "startTag": "none"})

References