Debian dla-4244 : 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-4244. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(242491);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/21");

  script_cve_id(
    "CVE-2024-34750",
    "CVE-2024-54677",
    "CVE-2025-31650",
    "CVE-2025-31651",
    "CVE-2025-46701",
    "CVE-2025-48976",
    "CVE-2025-48988",
    "CVE-2025-49125",
    "CVE-2025-52434",
    "CVE-2025-52520",
    "CVE-2025-53506"
  );
  script_xref(name:"IAVA", value:"2024-A-0393-S");
  script_xref(name:"IAVA", value:"2024-A-0822-S");
  script_xref(name:"IAVA", value:"2025-A-0313-S");
  script_xref(name:"IAVA", value:"2025-A-0389-S");
  script_xref(name:"IAVA", value:"2025-A-0437-S");
  script_xref(name:"IAVA", value:"2025-A-0478-S");

  script_name(english:"Debian dla-4244 : 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-4244 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4244-1                [email protected]
    https://www.debian.org/lts/security/                      Markus Koschany
    July 22, 2025                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : tomcat9
    Version        : 9.0.107-0+deb11u1
    CVE ID         : CVE-2024-34750 CVE-2024-54677 CVE-2025-31650 CVE-2025-31651
                     CVE-2025-46701 CVE-2025-48976 CVE-2025-48988 CVE-2025-49125
                     CVE-2025-52434 CVE-2025-52520 CVE-2025-53506

    Several security vulnerabilities have been found in Tomcat 9, a Java web server
    and servlet engine. Most notably the update improves the handling of HTTP/2
    connections and corrects various flaws which can lead to uncontrolled resource
    consumption and a denial of service.

    For Debian 11 bullseye, these problems have been fixed in version
    9.0.107-0+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-2024-34750");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-54677");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-31650");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-31651");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-46701");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-48976");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-48988");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-49125");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-52434");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-52520");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-53506");
  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:N/VI:N/VA:H/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-2025-31651");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2025-48988");

  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:"2024/06/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/07/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/07/22");

  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:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2025-2026 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': '9.0.107-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libtomcat9-java', 'reference': '9.0.107-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9', 'reference': '9.0.107-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-admin', 'reference': '9.0.107-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-common', 'reference': '9.0.107-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-docs', 'reference': '9.0.107-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-examples', 'reference': '9.0.107-0+deb11u1'},
    {'release': '11.0', 'prefix': 'tomcat9-user', 'reference': '9.0.107-0+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');
}