CVE-2021-37939: Kibana Kibana Sensitive Data Disclosure Vulnerability

MODERATE
Advisory Identifier: GHSA-hp5f-qqrw-c8gj
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CWE-319
Published
Advisory Summary

CVE-2021-37939 is a MODERATE kibana sensitive data disclosure vulnerability (CWE-319: Cleartext Transmission of Sensitive Information) affecting Kibana libraries in the npm ecosystem. The issue involves kibana sensitive data disclosure. Remediation is available by upgrading affected packages to version 7.15.2.

CVE-2021-37939 at a Glance

CVE Identifier CVE-2021-37939
GHSA Identifier GHSA-hp5f-qqrw-c8gj
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-319: Cleartext Transmission of Sensitive Information
Affected Product Kibana
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2021-37939

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

kibana fixed: 7.15.2 
npm install kibana@7.15.2
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 kibana

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-37939, inspect your project dependencies using npm:

npm ls kibana

Analyze the terminal output to locate any version of Kibana in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.15.2), your application is affected.

Note: The npm ls kibana 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-319: Cleartext Transmission of Sensitive Information, where the product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. In Kibana, 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

It was discovered that Kibana’s JIRA connector & IBM Resilient connector could be used to return HTTP response data on internal hosts, which may be intentionally hidden from public view. Using this vulnerability, a malicious user with the ability to create connectors, could utilize these connectors to view limited HTTP response data on hosts accessible to the cluster.

CVE-2021-37939 Affected Kibana Versions

1 component(s)
Fixed Versions:
7.15.2
Product / Package Ecosystem Affected Versions Fixed Version
kibana
npm/kibana
npm
≥ 7.8.0
< 7.15.2
7.15.2

References

NVD — CVE-2021-37939 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-37939
Kibana Security Information SECURITY
https://discuss.elastic.co/t/kibana-7-15-2-security-update/288923

Frequently Asked Questions

What is CVE-2021-37939?
CVE-2021-37939 is a security vulnerability in Kibana involving Kibana Sensitive Data Disclosure under CWE-319: Cleartext Transmission of Sensitive Information.
Which Kibana versions are affected?
Affected versions include releases prior to 7.15.2 across affected packages: kibana.
What version fixes CVE-2021-37939?
Upgrading to 7.15.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is kibana affected?
Yes, kibana is affected in releases prior to 7.15.2. Upgrade your dependency to 7.15.2 or later.
What CWE is associated with CVE-2021-37939?
CVE-2021-37939 is classified under CWE-319: Cleartext Transmission of Sensitive Information (The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.).
How can I check npm dependencies for CVE-2021-37939?
Run the dependency tree command: 'npm ls kibana'. 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-hp5f-qqrw-c8gj",
  "modified" : "2023-07-11T18:24:03Z",
  "published" : "2022-05-24T22:28:42Z",
  "aliases" : [ "CVE-2021-37939" ],
  "summary" : "Kibana Sensitive Data Disclosure",
  "details" : "It was discovered that Kibana’s JIRA connector & IBM Resilient connector could be used to return HTTP response data on internal hosts, which may be intentionally hidden from public view. Using this vulnerability, a malicious user with the ability to create connectors, could utilize these connectors to view limited HTTP response data on hosts accessible to the cluster.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "kibana"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.8.0"
      }, {
        "fixed" : "7.15.2"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 7.15.1"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-37939"
  }, {
    "type" : "WEB",
    "url" : "https://discuss.elastic.co/t/kibana-7-15-2-security-update/288923"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-319" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-11T18:24:03Z",
    "nvd_published_at" : "2021-11-18T16:15:00Z"
  }
}