CVE-2016-1000221: Logstash core Logstash Logs Sensitive Information Vulnerability

HIGH
Advisory Identifier: GHSA-vcmm-ppqx-95ch
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CVSS 7.5
CWE-200
Published
Advisory Summary

CVE-2016-1000221 is a HIGH (CVSS 7.5) logstash logs sensitive information vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Logstash core libraries in the RubyGems ecosystem. The issue involves logstash logs sensitive information. Remediation is available by upgrading affected packages to version 2.3.4.

CVE-2016-1000221 at a Glance

CVE Identifier CVE-2016-1000221
GHSA Identifier GHSA-vcmm-ppqx-95ch
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Logstash core
Package Ecosystem RubyGems
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:3.0/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-2016-1000221

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

logstash-core fixed: 2.3.4 
Upgrade logstash-core to 2.3.4
Verify Direct and Transitive Dependencies

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

inspect dependencies for logstash-core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2016-1000221, inspect your project dependencies for Logstash core:

inspect dependencies for logstash-core

Analyze the terminal output to locate any version of Logstash core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.3.4), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Logstash core, 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

Logstash prior to version 2.3.4, Elasticsearch Output plugin would log to file HTTP authorization headers which could contain sensitive information.

CVE-2016-1000221 Affected Logstash core Versions

1 component(s)
Fixed Versions:
2.3.4
Product / Package Ecosystem Affected Versions Fixed Version
logstash-core
gem/logstash-core
RubyGems
< 2.3.4
2.3.4

References

NVD — CVE-2016-1000221 NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-1000221
Security Fix Commit FIX COMMIT
https://github.com/elastic/logstash/commit/0999050144adad7f4d99d43e561c2882fd7c512b
Logstash core Source Repository REPOSITORY
https://github.com/elastic/logstash
Logstash core Security Information SECURITY
https://web.archive.org/web/20210124065200/http://www.securityfocus.com/bid/99126
Logstash core Security Information SECURITY
https://www.elastic.co/community/security

Frequently Asked Questions

What is CVE-2016-1000221?
CVE-2016-1000221 is a security vulnerability in Logstash core involving Logstash Logs Sensitive Information under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Logstash core versions are affected?
Affected versions include releases prior to 2.3.4 across affected packages: logstash-core.
What version fixes CVE-2016-1000221?
Upgrading to 2.3.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is logstash-core affected?
Yes, logstash-core is affected in releases prior to 2.3.4. Upgrade your dependency to 2.3.4 or later.
What is the CVSS score of CVE-2016-1000221?
CVE-2016-1000221 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2016-1000221?
CVE-2016-1000221 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check RubyGems dependencies for CVE-2016-1000221?
Run the dependency tree command: 'inspect dependencies for logstash-core'. 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-vcmm-ppqx-95ch",
  "modified" : "2023-07-28T20:52:56Z",
  "published" : "2022-05-14T00:58:12Z",
  "aliases" : [ "CVE-2016-1000221" ],
  "summary" : "Logstash Logs Sensitive Information",
  "details" : "Logstash prior to version 2.3.4, Elasticsearch Output plugin would log to file HTTP authorization headers which could contain sensitive information.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "logstash-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.3.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2016-1000221"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/elastic/logstash/commit/0999050144adad7f4d99d43e561c2882fd7c512b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/elastic/logstash"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20210124065200/http://www.securityfocus.com/bid/99126"
  }, {
    "type" : "WEB",
    "url" : "https://www.elastic.co/community/security"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-28T20:52:56Z",
    "nvd_published_at" : "2017-06-16T21:29:00Z"
  }
}