Kibana 7.x / 8.x < 8.19.10 / 9.1.x < 9.1.10 / 9.2.x < 9.2.4 (ESA_2026_08)

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

include('compat.inc');

if (description)
{
  script_id(286274);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/10");

  script_cve_id("CVE-2026-0543");
  script_xref(name:"IAVB", value:"2026-B-0015-S");

  script_name(english:"Kibana 7.x / 8.x < 8.19.10 / 9.1.x < 9.1.10 / 9.2.x < 9.2.4 (ESA_2026_08)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of Kibana installed on the remote host is prior to 8.19.10, 9.1.10, or 9.2.4. It is, therefore, affected 
by a vulnerability as referenced in the ESA_2026_08 advisory.

  - An improper input validation vulnerability in Kibana's Email Connector can allow an attacker to cause 
    an excessive allocation through a specially crafted email address parameter. This requires an attacker 
    to have authenticated access with view-level privileges sufficient to execute connector actions. 
    Successful exploitation results in complete service unavailability for all users until a manual restart 
    is performed. This affects all Kibana 7.x versions, 8.x versions from 8.0.0 to 8.19.9, 9.x versions from 
    9.0.0 to 9.1.9, and 9.2.0 to 9.2.3. (CVE-2026-0543)

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/kibana-8-19-10-9-1-10-9-2-4-security-update-esa-2026-08/384523
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?afe62cf4");
  script_set_attribute(attribute:"solution", value:
"Update to Kibana version 8.19.10, 9.1.10, 9.2.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-0543");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/01/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/01/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/15");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:elasticsearch:kibana");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

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

  script_dependencies("kibana_web_detect.nbin");
  script_require_keys("installed_sw/Kibana");
  script_require_ports("Services/www", 5601);

  exit(0);
}

include('http.inc');
include('vcf.inc');

var app = 'Kibana';

get_install_count(app_name: 'Kibana', exit_if_zero: TRUE);

var port = get_http_port(default:5601);

var app_info = vcf::get_app_info(app:app, port:port, webapp:TRUE);

var constraints = [
  { 'min_version' : '7.0.0',  'max_version' : '8.19.9',  'fixed_version' : '8.19.10' },
  { 'min_version' : '9.0.0',  'max_version' : '9.1.9',   'fixed_version' : '9.1.10' },
  { 'min_version' : '9.2.0',  'max_version' : '9.2.3',   'fixed_version' : '9.2.4' }
];

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




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