RHEL 9 : flatpak (RHSA-2023:6518)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2023:6518. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(185103);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/22");

  script_cve_id("CVE-2023-28100", "CVE-2023-28101");
  script_xref(name:"RHSA", value:"2023:6518");

  script_name(english:"RHEL 9 : flatpak (RHSA-2023:6518)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2023:6518 advisory.

  - Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.
    Versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4 contain a vulnerability similar to CVE-2017-5226, but
    using the `TIOCLINUX` ioctl command instead of `TIOCSTI`. If a Flatpak app is run on a Linux virtual
    console such as `/dev/tty1`, it can copy text from the virtual console and paste it into the command
    buffer, from which the command might be run after the Flatpak app has exited. Ordinary graphical terminal
    emulators like xterm, gnome-terminal and Konsole are unaffected. This vulnerability is specific to the
    Linux virtual consoles `/dev/tty1`, `/dev/tty2` and so on. A patch is available in versions 1.10.8,
    1.12.8, 1.14.4, and 1.15.4. As a workaround, don't run Flatpak on a Linux virtual console. Flatpak is
    primarily designed to be used in a Wayland or X11 graphical environment. (CVE-2023-28100)

  - Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In
    versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak app with elevated
    permissions, they can hide those permissions from users of the `flatpak(1)` command-line interface by
    setting other permissions to crafted values that contain non-printable control characters such as `ESC`. A
    fix is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, use a GUI like GNOME
    Software rather than the command-line interface, or only install apps whose maintainers you trust.
    (CVE-2023-28101)

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://access.redhat.com/security/cve/CVE-2023-28100");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-28101");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:6518");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/UI:N/S:U/C:N/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-2023-28101");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(20, 116);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/03/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/11/07");
  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:redhat:enterprise_linux:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:flatpak");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:flatpak-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:flatpak-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:flatpak-selinux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:flatpak-session-helper");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat 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", "redhat_repos.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');
include('rhel.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) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '9')) audit(AUDIT_OS_NOT, 'Red Hat 9.x', 'Red Hat ' + 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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'repo_relative_urls': [
      'content/dist/rhel9/9/aarch64/appstream/debug',
      'content/dist/rhel9/9/aarch64/appstream/os',
      'content/dist/rhel9/9/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9/aarch64/baseos/debug',
      'content/dist/rhel9/9/aarch64/baseos/os',
      'content/dist/rhel9/9/aarch64/baseos/source/SRPMS',
      'content/dist/rhel9/9/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9/aarch64/codeready-builder/os',
      'content/dist/rhel9/9/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/aarch64/highavailability/debug',
      'content/dist/rhel9/9/aarch64/highavailability/os',
      'content/dist/rhel9/9/aarch64/highavailability/source/SRPMS',
      'content/dist/rhel9/9/aarch64/supplementary/debug',
      'content/dist/rhel9/9/aarch64/supplementary/os',
      'content/dist/rhel9/9/aarch64/supplementary/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/appstream/debug',
      'content/dist/rhel9/9/ppc64le/appstream/os',
      'content/dist/rhel9/9/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/baseos/debug',
      'content/dist/rhel9/9/ppc64le/baseos/os',
      'content/dist/rhel9/9/ppc64le/baseos/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/highavailability/debug',
      'content/dist/rhel9/9/ppc64le/highavailability/os',
      'content/dist/rhel9/9/ppc64le/highavailability/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/resilientstorage/debug',
      'content/dist/rhel9/9/ppc64le/resilientstorage/os',
      'content/dist/rhel9/9/ppc64le/resilientstorage/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/sap-solutions/debug',
      'content/dist/rhel9/9/ppc64le/sap-solutions/os',
      'content/dist/rhel9/9/ppc64le/sap-solutions/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/sap/debug',
      'content/dist/rhel9/9/ppc64le/sap/os',
      'content/dist/rhel9/9/ppc64le/sap/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/supplementary/debug',
      'content/dist/rhel9/9/ppc64le/supplementary/os',
      'content/dist/rhel9/9/ppc64le/supplementary/source/SRPMS',
      'content/dist/rhel9/9/s390x/appstream/debug',
      'content/dist/rhel9/9/s390x/appstream/os',
      'content/dist/rhel9/9/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9/s390x/baseos/debug',
      'content/dist/rhel9/9/s390x/baseos/os',
      'content/dist/rhel9/9/s390x/baseos/source/SRPMS',
      'content/dist/rhel9/9/s390x/codeready-builder/debug',
      'content/dist/rhel9/9/s390x/codeready-builder/os',
      'content/dist/rhel9/9/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/s390x/highavailability/debug',
      'content/dist/rhel9/9/s390x/highavailability/os',
      'content/dist/rhel9/9/s390x/highavailability/source/SRPMS',
      'content/dist/rhel9/9/s390x/resilientstorage/debug',
      'content/dist/rhel9/9/s390x/resilientstorage/os',
      'content/dist/rhel9/9/s390x/resilientstorage/source/SRPMS',
      'content/dist/rhel9/9/s390x/sap/debug',
      'content/dist/rhel9/9/s390x/sap/os',
      'content/dist/rhel9/9/s390x/sap/source/SRPMS',
      'content/dist/rhel9/9/s390x/supplementary/debug',
      'content/dist/rhel9/9/s390x/supplementary/os',
      'content/dist/rhel9/9/s390x/supplementary/source/SRPMS',
      'content/dist/rhel9/9/x86_64/appstream/debug',
      'content/dist/rhel9/9/x86_64/appstream/os',
      'content/dist/rhel9/9/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9/x86_64/baseos/debug',
      'content/dist/rhel9/9/x86_64/baseos/os',
      'content/dist/rhel9/9/x86_64/baseos/source/SRPMS',
      'content/dist/rhel9/9/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9/x86_64/codeready-builder/os',
      'content/dist/rhel9/9/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/x86_64/highavailability/debug',
      'content/dist/rhel9/9/x86_64/highavailability/os',
      'content/dist/rhel9/9/x86_64/highavailability/source/SRPMS',
      'content/dist/rhel9/9/x86_64/nfv/debug',
      'content/dist/rhel9/9/x86_64/nfv/os',
      'content/dist/rhel9/9/x86_64/nfv/source/SRPMS',
      'content/dist/rhel9/9/x86_64/resilientstorage/debug',
      'content/dist/rhel9/9/x86_64/resilientstorage/os',
      'content/dist/rhel9/9/x86_64/resilientstorage/source/SRPMS',
      'content/dist/rhel9/9/x86_64/rt/debug',
      'content/dist/rhel9/9/x86_64/rt/os',
      'content/dist/rhel9/9/x86_64/rt/source/SRPMS',
      'content/dist/rhel9/9/x86_64/sap-solutions/debug',
      'content/dist/rhel9/9/x86_64/sap-solutions/os',
      'content/dist/rhel9/9/x86_64/sap-solutions/source/SRPMS',
      'content/dist/rhel9/9/x86_64/sap/debug',
      'content/dist/rhel9/9/x86_64/sap/os',
      'content/dist/rhel9/9/x86_64/sap/source/SRPMS',
      'content/dist/rhel9/9/x86_64/supplementary/debug',
      'content/dist/rhel9/9/x86_64/supplementary/os',
      'content/dist/rhel9/9/x86_64/supplementary/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'flatpak-1.12.8-1.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'flatpak-devel-1.12.8-1.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'flatpak-libs-1.12.8-1.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'flatpak-selinux-1.12.8-1.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'flatpak-session-helper-1.12.8-1.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_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;
    var exists_check = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        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)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'flatpak / flatpak-devel / flatpak-libs / flatpak-selinux / etc');
}