Information Exposure Affecting harp package, versions <0.40.2


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.13% (49th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-JS-HARP-174149
  • published 10 Apr 2019
  • disclosed 9 Apr 2019
  • credit skyn3t

How to fix?

Upgrade harp to version 0.40.2 or higher.

Overview

harp is a zero-configuration web server with built in pre-processing.

Affected versions of this package are vulnerable to Information Exposure. The documentation explicitly mentions that files or directories with names that start with an underscore are ignored by the server and are not served to the end user. By using simple URL encoding this verification is bypassed and files or directories that should be ignored are accessible.

CVSS Scores

version 3.1
Expand this section

Snyk

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