CVE-2019-10771: Iobroker.web Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-6rjc-4pwr-3vp7
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2019-10771 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Iobroker.web libraries in the npm ecosystem. The issue involves cross-site scripting in iobroker.web. Remediation is available by upgrading affected packages to version 2.4.10.

CVE-2019-10771 at a Glance

CVE Identifier CVE-2019-10771
GHSA Identifier GHSA-6rjc-4pwr-3vp7
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Iobroker.web
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.1

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

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

How to Fix CVE-2019-10771

To remediate this vulnerability, upgrade all affected Iobroker.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.

iobroker.web fixed: 2.4.10 
npm install iobroker.web@2.4.10
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 iobroker.web

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2019-10771, inspect your project dependencies using npm:

npm ls iobroker.web

Analyze the terminal output to locate any version of Iobroker.web in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.4.10), your application is affected.

Note: The npm ls iobroker.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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Iobroker.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

Versions of `iobroker.web` prior to 2.4.10 are vulnerable to Cross-Site Scripting. The package fails to escape URL parameters that may be reflected in the server response. This can be used by attackers to execute arbitrary JavaScript in the victim's browser. ## Recommendation Upgrade to version 2.4.10 or later.

CVE-2019-10771 Affected Iobroker.web Versions

1 component(s)
Fixed Versions:
2.4.10
Product / Package Ecosystem Affected Versions Fixed Version
iobroker.web
npm/iobroker.web
npm
< 2.4.10
2.4.10

References

NVD — CVE-2019-10771 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10771
snyk.io/vuln/snyk-js-iobrok... WEB
https://snyk.io/vuln/SNYK-JS-IOBROKERWEB-534971
www.npmjs.com/advisories/1345 WEB
https://www.npmjs.com/advisories/1345

Frequently Asked Questions

What is CVE-2019-10771?
CVE-2019-10771 is a security vulnerability in Iobroker.web involving Cross-Site Scripting in iobroker.web under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Iobroker.web versions are affected?
Affected versions include releases prior to 2.4.10 across affected packages: iobroker.web.
What version fixes CVE-2019-10771?
Upgrading to 2.4.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is iobroker.web affected?
Yes, iobroker.web is affected in releases prior to 2.4.10. Upgrade your dependency to 2.4.10 or later.
What is the CVSS score of CVE-2019-10771?
CVE-2019-10771 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2019-10771?
CVE-2019-10771 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for CVE-2019-10771?
Run the dependency tree command: 'npm ls iobroker.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-6rjc-4pwr-3vp7",
  "modified" : "2021-08-19T15:34:42Z",
  "published" : "2019-12-02T18:14:30Z",
  "aliases" : [ "CVE-2019-10771" ],
  "summary" : "Cross-Site Scripting in iobroker.web",
  "details" : "Versions of `iobroker.web` prior to 2.4.10 are vulnerable to Cross-Site Scripting. The package fails to escape URL parameters that may be reflected in the server response. This can be used by attackers to execute arbitrary JavaScript in the victim's browser.\n\n\n## Recommendation\n\nUpgrade to version 2.4.10 or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "iobroker.web"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.4.10"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10771"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-IOBROKERWEB-534971"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1345"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-12-02T01:13:05Z",
    "nvd_published_at" : null
  }
}