Debian dla-4619 : libtomcat9-embed-java - security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-4619. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(319611);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/06");

  script_cve_id(
    "CVE-2026-24880",
    "CVE-2026-25854",
    "CVE-2026-29129",
    "CVE-2026-29145",
    "CVE-2026-29146",
    "CVE-2026-32990",
    "CVE-2026-34483",
    "CVE-2026-34487",
    "CVE-2026-34500",
    "CVE-2026-41284",
    "CVE-2026-41293",
    "CVE-2026-42498",
    "CVE-2026-43512",
    "CVE-2026-43513",
    "CVE-2026-43514",
    "CVE-2026-43515"
  );
  script_xref(name:"IAVA", value:"2026-A-0319-S");
  script_xref(name:"IAVA", value:"2026-A-0475");

  script_name(english:"Debian dla-4619 : libtomcat9-embed-java - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4619 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4619-1                [email protected]
    https://www.debian.org/lts/security/                      Markus Koschany
    June 07, 2026                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : tomcat9
    Version        : 9.0.118-0+deb11u1
    CVE ID         : CVE-2026-24880 CVE-2026-25854 CVE-2026-29129 CVE-2026-29145
                     CVE-2026-29146 CVE-2026-32990 CVE-2026-34483 CVE-2026-34487
                     CVE-2026-34500 CVE-2026-41284 CVE-2026-41293 CVE-2026-42498
                     CVE-2026-43512 CVE-2026-43513 CVE-2026-43514 CVE-2026-43515

    Multiple security vulnerabilities have been discovered in Tomcat 9, a Java
    based web server, servlet and JSP engine which may result in a denial of
    service, authentication bypass or the disclosure of sensitive information.

    In order to address certain vulnerabilities and restore the compatibility with
    Tomcat 9, an upgrade of the Tomcat native library, libtcnative-1, was required
    as well.

    Although we are not aware of any problems, new upstream versions may introduce
    new options, limits or code changes which may or may not affect your existing
    web applications. We recommend to consult the Tomcat 9 documentation for
    further information.

    For Debian 11 bullseye, these problems have been fixed in version
    9.0.118-0+deb11u1.

    We recommend that you upgrade your tomcat9 packages.

    For the detailed security status of tomcat9 please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/tomcat9

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS
    Attachment:
    signature.asc
    Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/tomcat9");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-24880");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-25854");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-29129");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-29145");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-29146");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-32990");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-34483");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-34487");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-34500");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-41284");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-41293");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-42498");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-43512");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-43513");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-43514");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-43515");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/tomcat9");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libtomcat9-embed-java packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-43512");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2026-29146");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/03/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libtomcat9-embed-java");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libtomcat9-java");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat9-admin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat9-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat9-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat9-examples");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat9-user");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  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:"Debian Local Security Checks");

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '11.0', 'prefix': 'libtomcat9-embed-java', 'reference': '9.0.118-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libtomcat9-java', 'reference': '9.0.118-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9', 'reference': '9.0.118-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-admin', 'reference': '9.0.118-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-common', 'reference': '9.0.118-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-docs', 'reference': '9.0.118-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-examples', 'reference': '9.0.118-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-user', 'reference': '9.0.118-0+deb11u1'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libtomcat9-embed-java / libtomcat9-java / tomcat9 / tomcat9-admin / etc');
}