Fedora 39 : moodle (2023-6bd1586dc5)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2023-6bd1586dc5
#

include('compat.inc');

if (description)
{
  script_id(185223);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/29");

  script_cve_id(
    "CVE-2023-5539",
    "CVE-2023-5540",
    "CVE-2023-5541",
    "CVE-2023-5542",
    "CVE-2023-5543",
    "CVE-2023-5544",
    "CVE-2023-5545",
    "CVE-2023-5546",
    "CVE-2023-5547",
    "CVE-2023-5548",
    "CVE-2023-5549",
    "CVE-2023-5550",
    "CVE-2023-5551"
  );
  script_xref(name:"FEDORA", value:"2023-6bd1586dc5");

  script_name(english:"Fedora 39 : moodle (2023-6bd1586dc5)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Fedora host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the
FEDORA-2023-6bd1586dc5 advisory.

  - A remote code execution risk was identified in the Lesson activity. By default this was only available to
    teachers and managers. (CVE-2023-5539)

  - A remote code execution risk was identified in the IMSCP activity. By default this was only available to
    teachers and managers. (CVE-2023-5540)

  - The CSV grade import method contained an XSS risk for users importing the spreadsheet, if it contained
    unsafe content. (CVE-2023-5541)

  - Students in Only see own membership groups could see other students in the group, which should be
    hidden. (CVE-2023-5542)

  - When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a
    new ID for the new activity. This could provide unintended access to the original meeting. (CVE-2023-5543)

  - Wiki comments required additional sanitizing and access restrictions to prevent a stored XSS risk and
    potential IDOR risk. (CVE-2023-5544)

  - H5P metadata automatically populated the author with the user's username, which could be sensitive
    information. (CVE-2023-5545)

  - ID numbers displayed in the quiz grading report required additional sanitizing to prevent a stored XSS
    risk. (CVE-2023-5546)

  - The course upload preview contained an XSS risk for users uploading unsafe data. (CVE-2023-5547)

  - Stronger revision number limitations were required on file serving endpoints to improve cache poisoning
    protection. (CVE-2023-5548)

  - Insufficient web service capability checks made it possible to move categories a user had permission to
    manage, to a parent category they did not have the capability to manage. (CVE-2023-5549)

  - In a shared hosting environment that has been misconfigured to allow access to other users' content, a
    Moodle user who also has direct access to the web server outside of the Moodle webroot could utilise a
    local file include to achieve remote code execution. (CVE-2023-5550)

  - Separate Groups mode restrictions were not honoured in the forum summary report, which would display users
    from other groups. (CVE-2023-5551)

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://bodhi.fedoraproject.org/updates/FEDORA-2023-6bd1586dc5");
  script_set_attribute(attribute:"solution", value:
"Update the affected moodle package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-5550");

  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:"2023/10/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/10/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:39");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:moodle");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Fedora' >!< os_release) audit(AUDIT_OS_NOT, 'Fedora');
var os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');
os_ver = os_ver[1];
if (! preg(pattern:"^39([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Fedora 39', 'Fedora ' + os_ver);

if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Fedora', cpu);

var pkgs = [
    {'reference':'moodle-4.3-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (reference && _release) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'moodle');
}