Apache Tomcat 9.0.89 < 9.0.121

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

include('compat.inc');

if (description)
{
  script_id(330442);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/28");

  script_cve_id("CVE-2026-66299");

  script_name(english:"Apache Tomcat 9.0.89 < 9.0.121");

  script_set_attribute(attribute:"synopsis", value:
"The remote Apache Tomcat server is affected by a vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of Tomcat installed on the remote host is prior to 9.0.121. It is, therefore, affected by a vulnerability as
referenced in the fixed_in_apache_tomcat_9.0.121_security-9 advisory.

  - Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue
    affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through
    9.0.120. Users who have followed the security guidance to remove the examples web application are not
    affected by this issue. Users are recommended to remove the examples web application or to upgrade to
    version 11.0.25, 10.1.58 or 9.0.121 (when released), which fix the issue. (CVE-2026-66299)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://github.com/apache/tomcat/commit/f6dda658e4eda2190de96219c182b9a75d27ab06
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d0d0b337");
  # https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.121
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5ff1419a");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Tomcat version 9.0.121 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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:N/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-2026-66299");

  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:"2026/07/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/28");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:tomcat:9");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

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

  script_dependencies("os_fingerprint.nasl", "tomcat_error_version.nasl", "tomcat_win_installed.nbin", "apache_tomcat_nix_installed.nbin");
  script_require_keys("installed_sw/Apache Tomcat");

  exit(0);
}

include('vcf_extras.inc');

vcf::tomcat::initialize();
var app_info = vcf::combined_get_app_info(app:'Apache Tomcat');

var constraints = [
  { 'min_version' : '9.0.89', 'max_version' : '9.0.120', 'fixed_version' : '9.0.121' }
];

vcf::check_all_backporting(app_info:app_info);
vcf::check_granularity(app_info:app_info, sig_segments:3);
vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE
);