Improper Access Control Affecting xo-web package, versions *


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    0.06% (26th percentile)

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  • Snyk ID SNYK-JS-XOWEB-1316691
  • published 14 Jul 2021
  • disclosed 13 Jul 2021
  • credit @r3naissance

How to fix?

There is no fixed version for xo-web.

Overview

Affected versions of this package are vulnerable to Improper Access Control. Permissions enforcement through WebSockets are not thoroughly checked and can lead to an unprivileged user to obtain data only accessible by admin, such as VMs, Backups, Audit, Users, and Groups.

The WebSockets that control the application API allow access to certain elements based purely on the response. For example, an attacker could manipulate the response of the resourceSet.getAll method to cause the UI to expose admin-level data.

CVSS Scores

version 3.1
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Snyk

5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    None
Expand this section

NVD

4.3 medium