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nessusThis script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2020-4235.NASL
HistoryOct 14, 2020 - 12:00 a.m.

RHEL 6 : chromium-browser (RHSA-2020:4235)

2020-10-1400:00:00
This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
13

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.9 High

AI Score

Confidence

High

0.014 Low

EPSS

Percentile

86.2%

The remote Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:4235 advisory.

  • chromium-browser: Inappropriate implementation in networking (CVE-2020-6557)

  • chromium-browser: Use after free in payments (CVE-2020-15967)

  • chromium-browser: Use after free in Blink (CVE-2020-15968)

  • chromium-browser: Use after free in WebRTC (CVE-2020-15969, CVE-2020-15987)

  • chromium-browser: Use after free in NFC (CVE-2020-15970)

  • chromium-browser: Use after free in printing (CVE-2020-15971)

  • chromium-browser: Use after free in audio (CVE-2020-15972)

  • chromium-browser: Insufficient policy enforcement in extensions (CVE-2020-15973)

  • chromium-browser: Integer overflow in Blink (CVE-2020-15974)

  • chromium-browser: Integer overflow in SwiftShader (CVE-2020-15975)

  • chromium-browser: Use after free in WebXR (CVE-2020-15976)

  • chromium-browser: Insufficient data validation in dialogs (CVE-2020-15977)

  • chromium-browser: Insufficient data validation in navigation (CVE-2020-15978)

  • chromium-browser: Inappropriate implementation in V8 (CVE-2020-15979)

  • chromium-browser: Insufficient policy enforcement in Intents (CVE-2020-15980)

  • chromium-browser: Out of bounds read in audio (CVE-2020-15981)

  • chromium-browser: Side-channel information leakage in cache (CVE-2020-15982)

  • chromium-browser: Insufficient data validation in webUI (CVE-2020-15983)

  • chromium-browser: Insufficient policy enforcement in Omnibox (CVE-2020-15984)

  • chromium-browser: Inappropriate implementation in Blink (CVE-2020-15985)

  • chromium-browser: Integer overflow in media (CVE-2020-15986)

  • chromium-browser: Insufficient policy enforcement in downloads (CVE-2020-15988)

  • chromium-browser: Uninitialized use in PDFium (CVE-2020-15989)

  • chromium-browser: Use after free in autofill (CVE-2020-15990)

  • chromium-browser: Use after free in password manager (CVE-2020-15991)

  • chromium-browser: Insufficient policy enforcement in networking (CVE-2020-15992)

Note that Nessus has not tested for these issues but has instead relied only on the applicationโ€™s self-reported version number.

##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:4235. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(141453);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");

  script_cve_id(
    "CVE-2020-6557",
    "CVE-2020-15967",
    "CVE-2020-15968",
    "CVE-2020-15969",
    "CVE-2020-15970",
    "CVE-2020-15971",
    "CVE-2020-15972",
    "CVE-2020-15973",
    "CVE-2020-15974",
    "CVE-2020-15975",
    "CVE-2020-15976",
    "CVE-2020-15977",
    "CVE-2020-15978",
    "CVE-2020-15979",
    "CVE-2020-15980",
    "CVE-2020-15981",
    "CVE-2020-15982",
    "CVE-2020-15983",
    "CVE-2020-15984",
    "CVE-2020-15985",
    "CVE-2020-15986",
    "CVE-2020-15987",
    "CVE-2020-15988",
    "CVE-2020-15989",
    "CVE-2020-15990",
    "CVE-2020-15991",
    "CVE-2020-15992"
  );
  script_xref(name:"RHSA", value:"2020:4235");
  script_xref(name:"IAVA", value:"2020-A-0443-S");
  script_xref(name:"IAVA", value:"2020-A-0472-S");
  script_xref(name:"IAVA", value:"2020-A-0486-S");

  script_name(english:"RHEL 6 : chromium-browser (RHSA-2020:4235)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for chromium-browser.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as
referenced in the RHSA-2020:4235 advisory.

  - chromium-browser: Inappropriate implementation in networking (CVE-2020-6557)

  - chromium-browser: Use after free in payments (CVE-2020-15967)

  - chromium-browser: Use after free in Blink (CVE-2020-15968)

  - chromium-browser: Use after free in WebRTC (CVE-2020-15969, CVE-2020-15987)

  - chromium-browser: Use after free in NFC (CVE-2020-15970)

  - chromium-browser: Use after free in printing (CVE-2020-15971)

  - chromium-browser: Use after free in audio (CVE-2020-15972)

  - chromium-browser: Insufficient policy enforcement in extensions (CVE-2020-15973)

  - chromium-browser: Integer overflow in Blink (CVE-2020-15974)

  - chromium-browser: Integer overflow in SwiftShader (CVE-2020-15975)

  - chromium-browser: Use after free in WebXR (CVE-2020-15976)

  - chromium-browser: Insufficient data validation in dialogs (CVE-2020-15977)

  - chromium-browser: Insufficient data validation in navigation (CVE-2020-15978)

  - chromium-browser: Inappropriate implementation in V8 (CVE-2020-15979)

  - chromium-browser: Insufficient policy enforcement in Intents (CVE-2020-15980)

  - chromium-browser: Out of bounds read in audio (CVE-2020-15981)

  - chromium-browser: Side-channel information leakage in cache (CVE-2020-15982)

  - chromium-browser: Insufficient data validation in webUI (CVE-2020-15983)

  - chromium-browser: Insufficient policy enforcement in Omnibox (CVE-2020-15984)

  - chromium-browser: Inappropriate implementation in Blink (CVE-2020-15985)

  - chromium-browser: Integer overflow in media (CVE-2020-15986)

  - chromium-browser: Insufficient policy enforcement in downloads (CVE-2020-15988)

  - chromium-browser: Uninitialized use in PDFium (CVE-2020-15989)

  - chromium-browser: Use after free in autofill (CVE-2020-15990)

  - chromium-browser: Use after free in password manager (CVE-2020-15991)

  - chromium-browser: Insufficient policy enforcement in networking (CVE-2020-15992)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2020/rhsa-2020_4235.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?248d1cc0");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#critical");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:4235");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885883");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885884");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885885");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885886");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885887");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885888");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885889");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885890");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885891");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885892");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885893");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885894");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885896");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885897");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885899");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885901");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885902");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885903");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885904");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885905");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885906");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885907");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885908");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885909");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885910");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885911");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885912");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL chromium-browser package based on the guidance in RHSA-2020:4235.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-15992");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/10/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:chromium-browser");
  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) 2020-2024 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: 'ge', os_version: os_ver, rhel_version: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.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/rhel/client/6/6Client/i386/supplementary/debug',
      'content/dist/rhel/client/6/6Client/i386/supplementary/os',
      'content/dist/rhel/client/6/6Client/i386/supplementary/source/SRPMS',
      'content/dist/rhel/client/6/6Client/x86_64/supplementary/debug',
      'content/dist/rhel/client/6/6Client/x86_64/supplementary/os',
      'content/dist/rhel/client/6/6Client/x86_64/supplementary/source/SRPMS',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/supplementary/debug',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/supplementary/os',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/supplementary/source/SRPMS',
      'content/dist/rhel/server/6/6Server/i386/supplementary/debug',
      'content/dist/rhel/server/6/6Server/i386/supplementary/os',
      'content/dist/rhel/server/6/6Server/i386/supplementary/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/supplementary/debug',
      'content/dist/rhel/server/6/6Server/x86_64/supplementary/os',
      'content/dist/rhel/server/6/6Server/x86_64/supplementary/source/SRPMS',
      'content/dist/rhel/workstation/6/6Workstation/i386/supplementary/debug',
      'content/dist/rhel/workstation/6/6Workstation/i386/supplementary/os',
      'content/dist/rhel/workstation/6/6Workstation/i386/supplementary/source/SRPMS',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/supplementary/debug',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/supplementary/os',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/supplementary/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'chromium-browser-86.0.4240.75-1.el6_10', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'chromium-browser-86.0.4240.75-1.el6_10', 'cpu':'x86_64', 'release':'6', '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;
    var cves = 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 (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    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, cves:cves)) 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, 'chromium-browser');
}
VendorProductVersionCPE
redhatenterprise_linuxchromium-browserp-cpe:/a:redhat:enterprise_linux:chromium-browser
redhatenterprise_linux6cpe:/o:redhat:enterprise_linux:6

References

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.9 High

AI Score

Confidence

High

0.014 Low

EPSS

Percentile

86.2%