CVE-2019-10767: Iobroker.js controller Arbitrary File Write Vulnerability

HIGH
Advisory Identifier: GHSA-cmch-296j-wfvw
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CVSS 7.5
CWE-22
Published
Advisory Summary

CVE-2019-10767 is a HIGH (CVSS 7.5) arbitrary file write vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Iobroker.js controller libraries in the npm ecosystem. The issue involves arbitrary file write in iobroker.js-controller. Remediation is available by upgrading affected packages to version 2.0.25.

CVE-2019-10767 at a Glance

CVE Identifier CVE-2019-10767
GHSA Identifier GHSA-cmch-296j-wfvw
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Iobroker.js controller
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/S:U/C:H/I:N/A:N).

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

How to Fix CVE-2019-10767

To remediate this vulnerability, upgrade all affected Iobroker.js controller 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.js-controller fixed: 2.0.25 
npm install iobroker.js-controller@2.0.25
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.js-controller

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2019-10767, inspect your project dependencies using npm:

npm ls iobroker.js-controller

Analyze the terminal output to locate any version of Iobroker.js controller in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.25), your application is affected.

Note: The npm ls iobroker.js-controller 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Iobroker.js controller, 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.controller` prior to 2.0.25 are vulnerable to Path Traversal. The package fails to restrict access to folders outside of the intended `/adapter/<adapter-name>` folder, which may allow attackers to include arbitrary files in the system. An attacker would need to be authenticated to perform the attack but the package has authentication disabled by default. ## Recommendation Upgrade to version 2.0.25 or later.

CVE-2019-10767 Affected Iobroker.js controller Versions

1 component(s)
Fixed Versions:
2.0.25
Product / Package Ecosystem Affected Versions Fixed Version
iobroker.js-controller
npm/iobroker.js-controller
npm
< 2.0.25
2.0.25

References

NVD — CVE-2019-10767 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10767
Security Fix Commit FIX COMMIT
https://github.com/ioBroker/ioBroker.js-controller/commit/f6e292c6750a491a5000d0f851b2fede4f9e2fda
snyk.io/vuln/snyk-js-iobrok... WEB
https://snyk.io/vuln/SNYK-JS-IOBROKERJSCONTROLLER-534881
www.npmjs.com/advisories/1419 WEB
https://www.npmjs.com/advisories/1419

Frequently Asked Questions

What is CVE-2019-10767?
CVE-2019-10767 is a security vulnerability in Iobroker.js controller involving Arbitrary File Write in iobroker.js-controller under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Iobroker.js controller versions are affected?
Affected versions include releases prior to 2.0.25 across affected packages: iobroker.js-controller.
What version fixes CVE-2019-10767?
Upgrading to 2.0.25 (or the latest patched release for your respective branch) resolves the vulnerability.
Is iobroker.js-controller affected?
Yes, iobroker.js-controller is affected in releases prior to 2.0.25. Upgrade your dependency to 2.0.25 or later.
What is the CVSS score of CVE-2019-10767?
CVE-2019-10767 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2019-10767?
CVE-2019-10767 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check npm dependencies for CVE-2019-10767?
Run the dependency tree command: 'npm ls iobroker.js-controller'. 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-cmch-296j-wfvw",
  "modified" : "2021-08-19T15:11:15Z",
  "published" : "2019-12-02T18:06:14Z",
  "aliases" : [ "CVE-2019-10767" ],
  "summary" : "Arbitrary File Write in iobroker.js-controller",
  "details" : "Versions of `iobroker.controller` prior to 2.0.25 are vulnerable to Path Traversal. The package fails to restrict access to folders outside of the intended `/adapter/<adapter-name>` folder, which may allow attackers to include arbitrary files in the system. An attacker would need to be authenticated to perform the attack but the package has authentication disabled by default.\n\n\n## Recommendation\n\nUpgrade to version 2.0.25 or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "iobroker.js-controller"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0.25"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10767"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ioBroker/ioBroker.js-controller/commit/f6e292c6750a491a5000d0f851b2fede4f9e2fda"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-IOBROKERJSCONTROLLER-534881"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1419"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-11-27T03:26:55Z",
    "nvd_published_at" : null
  }
}