Oracle Linux 8 : firefox (ELSA-2019-0966)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2019-0966.
##

include('compat.inc');

if (description)
{
  script_id(180799);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/08");

  script_cve_id(
    "CVE-2018-18506",
    "CVE-2019-9788",
    "CVE-2019-9790",
    "CVE-2019-9791",
    "CVE-2019-9792",
    "CVE-2019-9793",
    "CVE-2019-9795",
    "CVE-2019-9796",
    "CVE-2019-9810",
    "CVE-2019-9813"
  );
  script_xref(name:"IAVA", value:"2019-A-0037-S");
  script_xref(name:"IAVA", value:"2019-A-0089-S");

  script_name(english:"Oracle Linux 8 : firefox (ELSA-2019-0966)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the
ELSA-2019-0966 advisory.

  - When proxy auto-detection is enabled, if a web server serves a Proxy Auto-Configuration (PAC) file or if a
    PAC file is loaded locally, this PAC file can specify that requests to the localhost are to be sent
    through the proxy to another server. This behavior is disallowed by default when a proxy is manually
    configured, but when enabled could allow for attacks on services and tools that bind to the localhost for
    networked behavior if they are accessed through browsing. This vulnerability affects Firefox < 65.
    (CVE-2018-18506)

  - Mozilla developers and community members reported memory safety bugs present in Firefox 65, Firefox ESR
    60.5, and Thunderbird 60.5. Some of these bugs showed evidence of memory corruption and we presume that
    with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects
    Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66. (CVE-2019-9788)

  - A use-after-free vulnerability can occur when a raw pointer to a DOM element on a page is obtained using
    JavaScript and the element is then removed while still in use. This results in a potentially exploitable
    crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
    (CVE-2019-9790)

  - The type inference system allows the compilation of functions that can cause type confusions between
    arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor
    function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and
    writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR
    < 60.6, and Firefox < 66. (CVE-2019-9791)

  - A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if
    Spectre mitigations have been disabled. This vulnerability could allow an attacker to create an arbitrary
    value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range
    in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are
    currently enabled for all users by default settings.*. This vulnerability affects Thunderbird < 60.6,
    Firefox ESR < 60.6, and Firefox < 66. (CVE-2019-9793)

  - The IonMonkey just-in-time (JIT) compiler can leak an internal JS_OPTIMIZED_OUT magic value to the running
    script during a bailout. This magic value can then be used by JavaScript to achieve memory corruption,
    which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox
    ESR < 60.6, and Firefox < 66. (CVE-2019-9792)

  - A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be
    used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects
    Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66. (CVE-2019-9795)

  - A use-after-free vulnerability can occur when the SMIL animation controller incorrectly registers with the
    refresh driver twice when only a single registration is expected. When a registration is later freed with
    the removal of the animation controller element, the refresh driver incorrectly leaves a dangling pointer
    to the driver's observer array. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and
    Firefox < 66. (CVE-2019-9796)

  - Incorrect alias information in IonMonkey JIT compiler for Array.prototype.slice method may lead to missing
    bounds check and a buffer overflow. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and
    Thunderbird < 60.6.1. (CVE-2019-9810)

  - Incorrect handling of __proto__ mutations may lead to type confusion in IonMonkey JIT code and can be
    leveraged for arbitrary memory read and write. This vulnerability affects Firefox < 66.0.1, Firefox ESR <
    60.6.1, and Thunderbird < 60.6.1. (CVE-2019-9813)

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://linux.oracle.com/errata/ELSA-2019-0966.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected firefox package.");
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-9796");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle: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:"Oracle Linux 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/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_release = get_kb_item("Host/RedHat/release");
if (isnull(os_release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 8', 'Oracle Linux ' + 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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var pkgs = [
    {'reference':'firefox-60.6.1-1.0.2.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
    {'reference':'firefox-60.6.1-1.0.2.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE}
];

var flag = 0;
foreach var 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;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'EL' + 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 (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release) {
    if (exists_check) {
        if (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++;
    } else {
        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, 'firefox');
}