Debian DLA-3342-1 : freeradius - LTS 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-3342. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(171904);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/02/24");

  script_cve_id("CVE-2022-41859", "CVE-2022-41860", "CVE-2022-41861");

  script_name(english:"Debian DLA-3342-1 : freeradius - LTS 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 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-3342 advisory.

  - In freeradius, the EAP-PWD function compute_password_element() leaks information about the password which
    allows an attacker to substantially reduce the size of an offline dictionary attack. (CVE-2022-41859)

  - In freeradius, when an EAP-SIM supplicant sends an unknown SIM option, the server will try to look that
    option up in the internal dictionaries. This lookup will fail, but the SIM code will not check for that
    failure. Instead, it will dereference a NULL pointer, and cause the server to crash. (CVE-2022-41860)

  - A flaw was found in freeradius. A malicious RADIUS client or home server can send a malformed abinary
    attribute which can cause the server to crash. (CVE-2022-41861)

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/freeradius");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2023/dla-3342");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-41859");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-41860");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-41861");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/freeradius");
  script_set_attribute(attribute:"solution", value:
"Upgrade the freeradius packages.

For Debian 10 buster, these problems have been fixed in version 3.0.17+dfsg-1.1+deb10u2.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/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:N/S:U/C:H/I:N/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-2022-41859");

  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:"2022/12/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/02/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/02/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-config");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-dhcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-iodbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-memcached");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-postgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-python2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-redis");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-rest");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:freeradius-yubikey");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfreeradius-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfreeradius3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  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) 2023 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:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', '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': '10.0', 'prefix': 'freeradius', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-common', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-config', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-dhcp', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-iodbc', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-krb5', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-ldap', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-memcached', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-mysql', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-postgresql', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-python2', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-redis', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-rest', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-utils', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'freeradius-yubikey', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'libfreeradius-dev', 'reference': '3.0.17+dfsg-1.1+deb10u2'},
    {'release': '10.0', 'prefix': 'libfreeradius3', 'reference': '3.0.17+dfsg-1.1+deb10u2'}
];

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, 'freeradius / freeradius-common / freeradius-config / freeradius-dhcp / etc');
}