Vulnerabilities in pkg:npm/xo-web

PACKAGE
Advisory Identifier: GHSA-grvm-gcqf-gh8q
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Advisory Summary

CVE-2021-36383 is a MODERATE (CVSS 4.3) xen orchestra mishandles authorization vulnerability (CWE-863: Incorrect Authorization) affecting Xo web libraries in the npm ecosystem. The issue involves xen orchestra mishandles authorization. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/xo-web

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/xo-web. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-grvm-gcqf-gh8q CVE-2021-36383 MODERATE Xen Orchestra Mishandles Authorization

CVE-2021-36383 at a Glance

CVE Identifier CVE-2021-36383
GHSA Identifier GHSA-grvm-gcqf-gh8q
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-863: Incorrect Authorization
Affected Product Xo web
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 4.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2021-36383

To remediate this vulnerability, upgrade all affected Xo web dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

xo-web fixed: Latest secure release 
npm install xo-web@Latest secure release
xo-server fixed: Latest secure release 
npm install xo-server@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls xo-web

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-36383, inspect your project dependencies using npm:

npm ls xo-web

Analyze the terminal output to locate any version of Xo web in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls xo-web command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Xo web, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Xen Orchestra (with xo-web through 5.80.0 and xo-server through 5.84.0) mishandles authorization, as demonstrated by modified WebSocket `resourceSet.getAll` data is which the attacker changes the permission field from none to admin. The attacker gains access to data sets such as VMs, Backups, Audit, Users, and Groups.

CVE-2021-36383 Affected Xo web Versions

2 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
xo-web
npm/xo-web
npm
≤ 5.80.0
xo-server
npm/xo-server
npm
≤ 5.84.0

References

NVD — CVE-2021-36383 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36383
Xo web Source Repository REPOSITORY
https://github.com/vatesfr/xen-orchestra/issues/5712
Xo web Source Repository REPOSITORY
https://github.com/vatesfr/xen-orchestra

Frequently Asked Questions

What is CVE-2021-36383?
CVE-2021-36383 is a security vulnerability in Xo web involving Xen Orchestra Mishandles Authorization under CWE-863: Incorrect Authorization.
Which Xo web versions are affected?
Affected versions include releases prior to current release patches across affected packages: xo-web, xo-server.
What version fixes CVE-2021-36383?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is xo-web affected?
Yes, xo-web is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
Is xo-server affected?
Yes, xo-server is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2021-36383?
CVE-2021-36383 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2021-36383?
CVE-2021-36383 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check npm dependencies for CVE-2021-36383?
Run the dependency tree command: 'npm ls xo-web'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-grvm-gcqf-gh8q",
  "modified" : "2023-10-19T18:34:45Z",
  "published" : "2022-05-24T19:07:30Z",
  "aliases" : [ "CVE-2021-36383" ],
  "summary" : "Xen Orchestra Mishandles Authorization",
  "details" : "Xen Orchestra (with xo-web through 5.80.0 and xo-server through 5.84.0) mishandles authorization, as demonstrated by modified WebSocket `resourceSet.getAll` data is which the attacker changes the permission field from none to admin. The attacker gains access to data sets such as VMs, Backups, Audit, Users, and Groups.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "xo-web"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "5.80.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "xo-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "5.84.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-36383"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vatesfr/xen-orchestra/issues/5712"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/vatesfr/xen-orchestra"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-19T18:34:45Z",
    "nvd_published_at" : "2021-07-12T14:15:00Z"
  }
}