Debian dla-4119 : lemonldap-ng - 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-4119. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(234025);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/04/08");

  script_cve_id("CVE-2025-31510");

  script_name(english:"Debian dla-4119 : lemonldap-ng - 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-4119
advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4119-1                [email protected]
    https://www.debian.org/lts/security/                                 Yadd
    April 08, 2025                                https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : lemonldap-ng
    Version        : 2.0.11+ds-4+deb11u7
    CVE ID         : CVE-2025-31510

    lemonldap-ng is a powerful SSO solution that implement OpenID-Connect,
    SAML, CAS,... An input validation vulnerability (XSS) has been
    identified when using the Choice module. It permit to introduce HTML
    code into login page, and if the default Content-Security-Policy headers
    have been modify, it may be possible to inject JavaScript code also.

    For Debian 11 bullseye, this problem has been fixed in version
    2.0.11+ds-4+deb11u7.

    We recommend that you upgrade your lemonldap-ng packages.

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

    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 this issue but has instead relied only on the application's self-reported version
number.");
  # https://security-tracker.debian.org/tracker/source-package/lemonldap-ng
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9f8cb51e");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-31510");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/lemonldap-ng");
  script_set_attribute(attribute:"solution", value:
"Upgrade the lemonldap-ng 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:"cvss_score_source", value:"CVE-2025-31510");

  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:"2025/04/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/04/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/04/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:lemonldap-ng");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:lemonldap-ng-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:lemonldap-ng-fastcgi-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:lemonldap-ng-handler");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:lemonldap-ng-uwsgi-app");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:liblemonldap-ng-common-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:liblemonldap-ng-handler-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:liblemonldap-ng-manager-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:liblemonldap-ng-portal-perl");
  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': 'lemonldap-ng', 'reference': '2.0.11+ds-4+deb11u7'},
    {'release': '11.0', 'prefix': 'lemonldap-ng-doc', 'reference': '2.0.11+ds-4+deb11u7'},
    {'release': '11.0', 'prefix': 'lemonldap-ng-fastcgi-server', 'reference': '2.0.11+ds-4+deb11u7'},
    {'release': '11.0', 'prefix': 'lemonldap-ng-handler', 'reference': '2.0.11+ds-4+deb11u7'},
    {'release': '11.0', 'prefix': 'lemonldap-ng-uwsgi-app', 'reference': '2.0.11+ds-4+deb11u7'},
    {'release': '11.0', 'prefix': 'liblemonldap-ng-common-perl', 'reference': '2.0.11+ds-4+deb11u7'},
    {'release': '11.0', 'prefix': 'liblemonldap-ng-handler-perl', 'reference': '2.0.11+ds-4+deb11u7'},
    {'release': '11.0', 'prefix': 'liblemonldap-ng-manager-perl', 'reference': '2.0.11+ds-4+deb11u7'},
    {'release': '11.0', 'prefix': 'liblemonldap-ng-portal-perl', 'reference': '2.0.11+ds-4+deb11u7'}
];

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, 'lemonldap-ng / lemonldap-ng-doc / lemonldap-ng-fastcgi-server / etc');
}