CVE-2020-11611: Xdlocalstorage Open Redirect Vulnerability

MODERATE
Advisory Identifier: GHSA-c6c4-jmqx-3r33
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CVSS 6.1
CWE-601
Published
Advisory Summary

CVE-2020-11611 is a MODERATE (CVSS 6.1) open redirect vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Xdlocalstorage libraries in the npm ecosystem. The issue involves open redirect in xdlocalstorage. Remediation is available in the latest vendor maintenance releases.

CVE-2020-11611 at a Glance

CVE Identifier CVE-2020-11611
GHSA Identifier GHSA-c6c4-jmqx-3r33
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Xdlocalstorage
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-2020-11611

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

xdlocalstorage fixed: Latest secure release 
npm install xdlocalstorage@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 xdlocalstorage

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-11611, inspect your project dependencies using npm:

npm ls xdlocalstorage

Analyze the terminal output to locate any version of Xdlocalstorage 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 xdlocalstorage 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-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Xdlocalstorage, 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

An issue was discovered in xdLocalStorage through 2.0.5. The buildMessage() function in xdLocalStorage.js specifies the wildcard (*) as the targetOrigin when calling the postMessage() function on the iframe object. Therefore any domain that is currently loaded within the iframe can receive the messages that the client sends.

CVE-2020-11611 Affected Xdlocalstorage Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
xdlocalstorage
npm/xdlocalstorage
npm
≤ 2.0.5

References

NVD — CVE-2020-11611 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-11611
Xdlocalstorage Source Repository REPOSITORY
https://github.com/ofirdagan/cross-domain-local-storage
grimhacker.com/exploiting-xdlocals... WEB
https://grimhacker.com/exploiting-xdlocalstorage-localstorage-and-postmessage/#Missing-TargetOrigin-Client

Frequently Asked Questions

What is CVE-2020-11611?
CVE-2020-11611 is a security vulnerability in Xdlocalstorage involving Open Redirect in xdLocalStorage under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Xdlocalstorage versions are affected?
Affected versions include releases prior to current release patches across affected packages: xdlocalstorage.
What version fixes CVE-2020-11611?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is xdlocalstorage affected?
Yes, xdlocalstorage 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-2020-11611?
CVE-2020-11611 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-2020-11611?
CVE-2020-11611 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check npm dependencies for CVE-2020-11611?
Run the dependency tree command: 'npm ls xdlocalstorage'. 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-c6c4-jmqx-3r33",
  "modified" : "2021-05-25T16:23:58Z",
  "published" : "2021-12-09T19:30:14Z",
  "aliases" : [ "CVE-2020-11611" ],
  "summary" : "Open Redirect in xdLocalStorage",
  "details" : "An issue was discovered in xdLocalStorage through 2.0.5. The buildMessage() function in xdLocalStorage.js specifies the wildcard (*) as the targetOrigin when calling the postMessage() function on the iframe object. Therefore any domain that is currently loaded within the iframe can receive the messages that the client sends.",
  "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" : "xdlocalstorage"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.0.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-11611"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ofirdagan/cross-domain-local-storage"
  }, {
    "type" : "WEB",
    "url" : "https://grimhacker.com/exploiting-xdlocalstorage-localstorage-and-postmessage/#Missing-TargetOrigin-Client"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-25T16:23:58Z",
    "nvd_published_at" : "2020-04-07T18:15:00Z"
  }
}