Debian dla-4022 : tryton-server - 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-4022. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(214389);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/01/19");

  script_name(english:"Debian dla-4022 : tryton-server - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4022
advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4022-1                [email protected]
    https://www.debian.org/lts/security/                       Daniel Leidert
    January 19, 2025                              https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : tryton-server
    Version        : 5.0.33-2+deb11u3
    CVE ID         : not yet available
    Debian Bug     : none

    Cdric Krier has found that trytond, the Tryton application server,
    accepts compressed content from unauthenticated requests which makes it
    vulnerable to zip bomb attacks.

    The fix requires a small update to tryton-client as well to prevent a
    regression.

    For Debian 11 bullseye, this problem has been fixed in version
    5.0.33-2+deb11u3 in tryton-server and in version 5.0.33-1+deb11u1 for
    tryton-client.

    We recommend that you upgrade your tryton-server and tryton-client
    packages.

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

    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 this issue but has instead relied only on the application's self-reported version
number.");
  # https://security-tracker.debian.org/tracker/source-package/tryton-server
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?09d52eb3");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/tryton-server");
  script_set_attribute(attribute:"solution", value:
"Upgrade the tryton-server packages.");
  script_set_attribute(attribute:"risk_factor", value:"High");

  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:"2025/01/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/01/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/01/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tryton-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tryton-server-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025 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': 'tryton-server', 'reference': '5.0.33-2+deb11u3'},
    {'release': '11.0', 'prefix': 'tryton-server-doc', 'reference': '5.0.33-2+deb11u3'}
];

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, 'tryton-server / tryton-server-doc');
}