RHEL 8 : firefox (RHSA-2023:1789)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2023:1789. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(174341);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/26");

  script_cve_id(
    "CVE-2023-1945",
    "CVE-2023-1999",
    "CVE-2023-29533",
    "CVE-2023-29535",
    "CVE-2023-29536",
    "CVE-2023-29539",
    "CVE-2023-29541",
    "CVE-2023-29548",
    "CVE-2023-29550"
  );
  script_xref(name:"RHSA", value:"2023:1789");
  script_xref(name:"IAVA", value:"2023-A-0182-S");

  script_name(english:"RHEL 8 : firefox (RHSA-2023:1789)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for firefox.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as
referenced in the RHSA-2023:1789 advisory.

  - Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially
    exploitable crash. This vulnerability affects Thunderbird < 102.10 and Firefox ESR < 102.10.
    (CVE-2023-1945)

  - There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode()
    function and loop through to free best.bw and assign best = trial pointer. The second loop will then
    return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the
    AddressSanitizer will attempt a double free. (CVE-2023-1999)

  - A website could have obscured the fullscreen notification by using a combination of
    <code>window.open</code>, fullscreen requests, <code>window.name</code> assignments, and
    <code>setInterval</code> calls. This could have led to user confusion and possible spoofing attacks. This
    vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android <
    112, and Thunderbird < 102.10. (CVE-2023-29533)

  - Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly
    traced. This resulted in memory corruption and a potentially exploitable crash. This vulnerability affects
    Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird <
    102.10. (CVE-2023-29535)

  - An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-
    controlled memory, resulting in an assertion, memory corruption, or a potentially exploitable crash. This
    vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android <
    112, and Thunderbird < 102.10. (CVE-2023-29536)

  - When handling the filename directive in the Content-Disposition header, the filename would be truncated if
    the filename contained a NULL character. This could have led to reflected file download attacks
    potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android
    < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. (CVE-2023-29539)

  - Firefox did not properly handle downloads of files ending in <code>.desktop</code>, which can be
    interpreted to run attacker-controlled commands. <br>*This bug only affects Firefox for Linux on certain
    Distributions. Other operating systems are unaffected, and Mozilla is unable to enumerate all affected
    Linux Distributions.*. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR <
    102.10, Firefox for Android < 112, and Thunderbird < 102.10. (CVE-2023-29541)

  - A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result. This
    vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android <
    112, and Thunderbird < 102.10. (CVE-2023-29548)

  - Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. Some of these bugs showed evidence of
    memory corruption and we presume that with enough effort some of these could have been exploited to run
    arbitrary code. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10,
    Firefox for Android < 112, and Thunderbird < 102.10. (CVE-2023-29550)

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/errata/RHSA-2023:1789");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-1945");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-1999");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-29533");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-29535");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-29536");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-29539");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-29541");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-29548");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2023-29550");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL firefox package based on the guidance in RHSA-2023:1789.");
  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:R/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-2023-29550");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(119, 120, 159, 415, 425, 434, 617, 682);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/04/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/04/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/04/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_aus:8.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_e4s:8.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_tus:8.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:firefox");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023-2024 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: 'eq', os_version: os_ver, rhel_version: '8.2')) audit(AUDIT_OS_NOT, 'Red Hat 8.2', '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/aus/rhel8/8.2/x86_64/appstream/debug',
      'content/aus/rhel8/8.2/x86_64/appstream/os',
      'content/aus/rhel8/8.2/x86_64/appstream/source/SRPMS',
      'content/aus/rhel8/8.2/x86_64/baseos/debug',
      'content/aus/rhel8/8.2/x86_64/baseos/os',
      'content/aus/rhel8/8.2/x86_64/baseos/source/SRPMS',
      'content/e4s/rhel8/8.2/x86_64/appstream/debug',
      'content/e4s/rhel8/8.2/x86_64/appstream/os',
      'content/e4s/rhel8/8.2/x86_64/appstream/source/SRPMS',
      'content/e4s/rhel8/8.2/x86_64/baseos/debug',
      'content/e4s/rhel8/8.2/x86_64/baseos/os',
      'content/e4s/rhel8/8.2/x86_64/baseos/source/SRPMS',
      'content/e4s/rhel8/8.2/x86_64/highavailability/debug',
      'content/e4s/rhel8/8.2/x86_64/highavailability/os',
      'content/e4s/rhel8/8.2/x86_64/highavailability/source/SRPMS',
      'content/e4s/rhel8/8.2/x86_64/sap-solutions/debug',
      'content/e4s/rhel8/8.2/x86_64/sap-solutions/os',
      'content/e4s/rhel8/8.2/x86_64/sap-solutions/source/SRPMS',
      'content/e4s/rhel8/8.2/x86_64/sap/debug',
      'content/e4s/rhel8/8.2/x86_64/sap/os',
      'content/e4s/rhel8/8.2/x86_64/sap/source/SRPMS',
      'content/tus/rhel8/8.2/x86_64/appstream/debug',
      'content/tus/rhel8/8.2/x86_64/appstream/os',
      'content/tus/rhel8/8.2/x86_64/appstream/source/SRPMS',
      'content/tus/rhel8/8.2/x86_64/baseos/debug',
      'content/tus/rhel8/8.2/x86_64/baseos/os',
      'content/tus/rhel8/8.2/x86_64/baseos/source/SRPMS',
      'content/tus/rhel8/8.2/x86_64/highavailability/debug',
      'content/tus/rhel8/8.2/x86_64/highavailability/os',
      'content/tus/rhel8/8.2/x86_64/highavailability/source/SRPMS',
      'content/tus/rhel8/8.2/x86_64/nfv/debug',
      'content/tus/rhel8/8.2/x86_64/nfv/os',
      'content/tus/rhel8/8.2/x86_64/nfv/source/SRPMS',
      'content/tus/rhel8/8.2/x86_64/rt/debug',
      'content/tus/rhel8/8.2/x86_64/rt/os',
      'content/tus/rhel8/8.2/x86_64/rt/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'firefox-102.10.0-1.el8_2', 'sp':'2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':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 subscription_caveat = '\n' +
    'NOTE: This vulnerability check contains fixes that apply to\n' +
    'packages only available in the Red Hat Enterprise Linux\n' +
    'Advanced Update Support, Telco Extended Update Support or Update Services for SAP Solutions repositories.\n' +
    'Access to these repositories requires a paid RHEL subscription.\n';
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = subscription_caveat + rpm_report_get() + redhat_report_repo_caveat();
  else extra = subscription_caveat + rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'firefox');
}