Apache Tomcat 9.0.83 < 9.0.115

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

include('compat.inc');

if (description)
{
  script_id(299402);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/30");

  script_cve_id("CVE-2026-24734");
  script_xref(name:"IAVA", value:"2026-A-0175-S");

  script_name(english:"Apache Tomcat 9.0.83 < 9.0.115");

  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 9.0.115. It is, therefore, affected by a vulnerability as
referenced in the fixed_in_apache_tomcat_9.0.115_security-9 advisory.

  - Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. When using an OCSP
    responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification
    or freshness checks on the OCSP response which could allow certificate revocation to be bypassed. This
    issue affects Apache Tomcat Native: from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat:
    from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114. The following
    versions were EOL at the time the CVE was created but are known to be affected: from 1.1.23 through
    1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected. Apache Tomcat Native users are
    recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue. Apache Tomcat
    users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which
    fix the issue. (CVE-2026-24734)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.115
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8c775c05");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Tomcat version 9.0.115 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N");
  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:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-24734");

  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:"2026/01/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/01/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/18");

  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_set_attribute(attribute:"stig_severity", value:"II");
  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' : '9.0.83', 'max_version' : '9.0.114', 'fixed_version' : '9.0.115' }
];

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
);