Rosetta-flash jsonp vulnerability Affecting hapi package, versions < 6.1.0


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    1.79% (89th percentile)

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  • Snyk ID npm:hapi:20140708-1
  • published 8 Jul 2014
  • disclosed 8 Jul 2014
  • credit Michele Spagnuolo

How to fix?

Upgrade to the latest version of hapi.js

Overview

This description taken from the pull request provided by Patrick Kettner.

tl:dr - someone created a alphanum only swf converter, which means that they can in theory use it as a callback at a JSONP endpoint, and as a result, send data across domains.

Prepending callbacks with an empty inline comment breaks the flash parser, and prevents the issue. This is a fairly common solution currently being implemented by Google, Facebook, and GitHub.

Source: Node Security Project

CVSS Scores

version 3.1
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Snyk

Recommended
7.4 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
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NVD

4.3 medium
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Red Hat

4.3 medium