Elasticsearch 7.0.x <= 7.17.29 / 8.0.x < 8.18.8 / 8.19.x < 8.19.5 / 9.0.x < 9.0.8 / 9.1.x < 9.1.5 (ESA-2025-18)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(269983);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/21");

  script_cve_id("CVE-2025-37727");
  script_xref(name:"IAVA", value:"2025-A-0725-S");

  script_name(english:"Elasticsearch 7.0.x <= 7.17.29 / 8.0.x < 8.18.8 / 8.19.x < 8.19.5 / 9.0.x < 9.0.8 / 9.1.x < 9.1.5 (ESA-2025-18)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of Elasticsearch installed on the remote host is prior to 8.18.8, 8.19.5, 9.0.8, or 9.1.5. It is,
therefore, affected by a vulnerability as referenced in the ESA-2025-18 advisory.

  - Insertion of sensitive information in log file in Elasticsearch can lead to loss of confidentiality under
    specific preconditions when auditing requests to the reindex API. (CVE-2025-37727)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://discuss.elastic.co/t/elasticsearch-8-18-8-8-19-5-9-0-8-9-1-5-security-update-esa-2025-18/382453
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4e06e332");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Elasticsearch version 8.18.8, 8.19.5, 9.0.8, or 9.1.5 or later as appropriate for your release branch.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:S/C:C/I:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-37727");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/10/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/10/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/10");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:elasticsearch:elasticsearch");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:elastic:elasticsearch");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("elasticsearch_detect.nbin", "elastic_elasticsearch_nix_installed.nbin");
  script_require_keys("installed_sw/Elasticsearch");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::get_app_info(app:'Elasticsearch');

# no patched version for 7.x branch yet
var constraints = [
  { 'min_version' : '7.0.0', 'max_version' : '7.17.29', 'fixed_display' : 'Refer to vendor advisory' },
  { 'min_version' : '8.18.0', 'fixed_version' : '8.18.8' },
  { 'min_version' : '8.19.0', 'fixed_version' : '8.19.5' },
  { 'min_version' : '9.0.0', 'fixed_version' : '9.0.8' },
  { 'min_version' : '9.1.0', 'fixed_version' : '9.1.5' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);