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


0.0
high
  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

  • Confidentiality

    High

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  • snyk-id

    SNYK-JS-GITDIFFAPPLY-540774

  • published

    6 Jan 2020

  • disclosed

    6 Jan 2020

  • credit

    JHU System Security Lab

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