SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2021:3745-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2021:3745-1. The text itself
# is copyright (C) SUSE.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(155644);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");

  script_cve_id(
    "CVE-2021-38503",
    "CVE-2021-38504",
    "CVE-2021-38505",
    "CVE-2021-38506",
    "CVE-2021-38507",
    "CVE-2021-38508",
    "CVE-2021-38509",
    "CVE-2021-38510"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2021:3745-1");
  script_xref(name:"IAVA", value:"2021-A-0527-S");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2021:3745-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as
referenced in the SUSE-SU-2021:3745-1 advisory.

  - The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass
    restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects
    Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38503)

  - When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-
    free could have resulted, leading to memory corruption and a potentially exploitable crash. This
    vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38504)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record
    data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific
    clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have
    caused sensitive data to be recorded to a user's Microsoft account. *This bug only affects Firefox for
    Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*. This vulnerability
    affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38505)

  - Through a series of navigations, Firefox could have entered fullscreen mode without notification or
    warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This
    vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38506)

  - The Opportunistic Encryption feature of HTTP2 (RFC 8164) allows a connection to be transparently upgraded
    to TLS while retaining the visual properties of an HTTP connection, including being same-origin with
    unencrypted connections on port 80. However, if a second encrypted port on the same IP address (e.g. port
    8443) did not opt-in to opportunistic encryption; a network attacker could forward a connection from the
    browser to port 443 to port 8443, causing the browser to treat the content of port 8443 as same-origin
    with HTTP. This was resolved by disabling the Opportunistic Encryption feature, which had low usage. This
    vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38507)

  - By displaying a form validity message in the correct location at the same time as a permission prompt
    (such as for geolocation), the validity message could have obscured the prompt, resulting in the user
    potentially being tricked into granting the permission. This vulnerability affects Firefox < 94,
    Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38508)

  - Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary
    (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's
    choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
    (CVE-2021-38509)

  - The executable file warning was not presented when downloading .inetloc files, which, due to a flaw in Mac
    OS, can run commands on a user's computer.*Note: This issue only affected Mac OS operating systems. Other
    operating systems are unaffected.*. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and
    Firefox ESR < 91.3. (CVE-2021-38510)

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://bugzilla.suse.com/1192250");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-38503");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-38504");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-38505");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-38506");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-38507");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-38508");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-38509");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-38510");
  # https://lists.suse.com/pipermail/sle-security-updates/2021-November/009752.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2cc3624f");
  script_set_attribute(attribute:"solution", value:
"Update the affected MozillaFirefox, MozillaFirefox-devel, MozillaFirefox-translations-common and / or MozillaFirefox-
translations-other packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:C/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-2021-38503");

  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:"2021/11/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/11/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:MozillaFirefox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:MozillaFirefox-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:MozillaFirefox-translations-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:MozillaFirefox-translations-other");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  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:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLES15', 'SUSE (' + os_ver + ')');

if (!get_kb_item("Host/SuSE/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, 'SUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLED15" && (! preg(pattern:"^(2|3)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP2/3", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(2|3)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP2/3", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'MozillaFirefox-91.3.0-152.6.1', 'sp':'2', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.2']},
    {'reference':'MozillaFirefox-91.3.0-152.6.1', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.2']},
    {'reference':'MozillaFirefox-devel-91.3.0-152.6.1', 'sp':'2', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.2']},
    {'reference':'MozillaFirefox-devel-91.3.0-152.6.1', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.2']},
    {'reference':'MozillaFirefox-translations-common-91.3.0-152.6.1', 'sp':'2', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.2']},
    {'reference':'MozillaFirefox-translations-common-91.3.0-152.6.1', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.2']},
    {'reference':'MozillaFirefox-translations-other-91.3.0-152.6.1', 'sp':'2', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.2']},
    {'reference':'MozillaFirefox-translations-other-91.3.0-152.6.1', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.2']},
    {'reference':'MozillaFirefox-91.3.0-152.6.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-91.3.0-152.6.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-devel-91.3.0-152.6.1', 'sp':'3', 'cpu':'aarch64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-devel-91.3.0-152.6.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-devel-91.3.0-152.6.1', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-devel-91.3.0-152.6.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-translations-common-91.3.0-152.6.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-translations-common-91.3.0-152.6.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-translations-other-91.3.0-152.6.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']},
    {'reference':'MozillaFirefox-translations-other-91.3.0-152.6.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE, 'exists_check':['sle-module-desktop-applications-release-15.3']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var exists_check = NULL;
  var rpm_spec_vers_cmp = 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['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (exists_check) {
      var check_flag = 0;
      foreach var check (exists_check) {
        if (!rpm_exists(release:_release, rpm:check)) continue;
        check_flag++;
      }
      if (!check_flag) continue;
    }
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'MozillaFirefox / MozillaFirefox-devel / etc');
}