Debian dla-4820 : libjs-lodash - 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-4820. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(362922);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/05");

  script_cve_id(
    "CVE-2021-23337",
    "CVE-2025-13465",
    "CVE-2026-2950",
    "CVE-2026-4800"
  );

  script_name(english:"Debian dla-4820 : libjs-lodash - 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 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4820 advisory.

    - -----------------------------------------------------------------------
    Debian LTS Advisory DLA-4820-1              [email protected]
    https://www.debian.org/lts/security/                      Utkarsh Gupta
    October 05, 2026                            https://wiki.debian.org/LTS
    - -----------------------------------------------------------------------

    Package        : node-lodash
    Version        : 4.17.21+dfsg+~cs8.31.198.20210220-9+deb12u1
    CVE ID         : CVE-2025-13465 CVE-2026-2950 CVE-2026-4800
    Debian Bug     : 1126265

    Several vulnerabilities were discovered in node-lodash, a Node.js
    module providing utility functions for common programming tasks.

    CVE-2025-13465

        Prototype pollution in the _.unset and _.omit functions. A
        crafted property path could be used to delete properties from
        built-in prototypes (such as Object.prototype), leading to
        availability and integrity issues.

    CVE-2026-2950

        An incomplete fix for CVE-2025-13465. The initial guard only
        handled string key members and the literal constructor.prototype
        sequence, so it could be bypassed using array-wrapped path
        segments (for example [['constructor'], ['keys']]), via
        constructor static methods, or from primitive roots, again allowing
        deletion of properties on shared built-in prototypes.

    CVE-2026-4800

        Code injection in the _.template function. An incomplete fix for
        CVE-2021-23337: the variable option was validated but the
        imports option key names were not. Untrusted input passed as
        imports key names could inject default-parameter expressions that
        execute arbitrary code at template compilation time via the same
        Function() constructor sink.

    For Debian 12 bookworm, these problems have been fixed in version
    4.17.21+dfsg+~cs8.31.198.20210220-9+deb12u1.

    We recommend that you upgrade your node-lodash packages.

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

    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

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.");
  # https://security-tracker.debian.org/tracker/source-package/node-lodash
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?91cd746d");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-23337");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-13465");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-2950");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-4800");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/node-lodash");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libjs-lodash packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  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:L/VA:L/SC:H/SI:H/SA:H");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-23337");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-4800");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2025-13465");

  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:"2021/02/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libjs-lodash");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:node-lodash");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:node-lodash-packages");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  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) 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:"^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 12.0', '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': '12.0', 'prefix': 'libjs-lodash', 'reference': '4.17.21+dfsg+~cs8.31.198.20210220-9+deb12u1'},
    {'release': '12.0', 'prefix': 'node-lodash', 'reference': '4.17.21+dfsg+~cs8.31.198.20210220-9+deb12u1'},
    {'release': '12.0', 'prefix': 'node-lodash-packages', 'reference': '4.17.21+dfsg+~cs8.31.198.20210220-9+deb12u1'}
];

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, 'libjs-lodash / node-lodash / node-lodash-packages');
}