Debian dla-4131 : zabbix-agent - 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-4131. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(234691);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/04/21");

  script_cve_id(
    "CVE-2024-36469",
    "CVE-2024-42325",
    "CVE-2024-45699",
    "CVE-2024-45700"
  );

  script_name(english:"Debian dla-4131 : zabbix-agent - 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-4131 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4131-1                [email protected]
    https://www.debian.org/lts/security/                         Tobias Frost
    April 19, 2025                                https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : zabbix
    Version        : 1:5.0.46+dfsg-1+deb11u1
    CVE ID         : CVE-2024-36469 CVE-2024-42325 CVE-2024-45699 CVE-2024-45700
    Debian Bug     :

    Several security vulnerabilities have been discovered in zabbix, a
    network monitoring solution, potentially among other effects allowing
    denial of service, information disclosure or remote code inclusion.

    CVE-2024-36469

        Execution time for an unsuccessful login differs when using a
        non-existing username compared to using an existing one.

    CVE-2024-42325

        Zabbix API user.get returns all users that share common group with the
        calling user. This includes media and other information, such as login
        attempts, etc.

    CVE-2024-45699

        The endpoint /zabbix.php?action=export.valuemaps suffers from a
        Cross-Site Scripting vulnerability via the backurl parameter. This is
        caused by the reflection of user-supplied data without appropriate HTML
        escaping or output encoding. As a result, a JavaScript payload may be
        injected into the above endpoint causing it to be executed within the
        context of the victim's browser.

    CVE-2024-45700

        Zabbix server is vulnerable to a DoS vulnerability due to uncontrolled
        resource exhaustion. An attacker can send specially crafted requests to
        the server, which will cause the server to allocate an excessive amount
        of memory and perform CPU-intensive decompression operations, ultimately
        leading to a service crash.

    For Debian 11 bullseye, these problems have been fixed in version
    1:5.0.46+dfsg-1+deb11u1.

    We recommend that you upgrade your zabbix packages.

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

    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: PGP signature

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/zabbix");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-36469");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-42325");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-45699");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-45700");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/zabbix");
  script_set_attribute(attribute:"solution", value:
"Upgrade the zabbix-agent packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/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:R/S:C/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-45699");

  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:"2025/04/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/04/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/04/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-agent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-frontend-php");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-java-gateway");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-proxy-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-proxy-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-proxy-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-server-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-server-pgsql");
  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': 'zabbix-agent', 'reference': '1:5.0.46+dfsg-1+deb11u1'},
    {'release': '11.0', 'prefix': 'zabbix-frontend-php', 'reference': '1:5.0.46+dfsg-1+deb11u1'},
    {'release': '11.0', 'prefix': 'zabbix-java-gateway', 'reference': '1:5.0.46+dfsg-1+deb11u1'},
    {'release': '11.0', 'prefix': 'zabbix-proxy-mysql', 'reference': '1:5.0.46+dfsg-1+deb11u1'},
    {'release': '11.0', 'prefix': 'zabbix-proxy-pgsql', 'reference': '1:5.0.46+dfsg-1+deb11u1'},
    {'release': '11.0', 'prefix': 'zabbix-proxy-sqlite3', 'reference': '1:5.0.46+dfsg-1+deb11u1'},
    {'release': '11.0', 'prefix': 'zabbix-server-mysql', 'reference': '1:5.0.46+dfsg-1+deb11u1'},
    {'release': '11.0', 'prefix': 'zabbix-server-pgsql', 'reference': '1:5.0.46+dfsg-1+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_WARNING,
    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, 'zabbix-agent / zabbix-frontend-php / zabbix-java-gateway / etc');
}