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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.AL2_ALAS-2024-2516.NASL
HistoryApr 18, 2024 - 12:00 a.m.

Amazon Linux 2 : webkitgtk4 (ALAS-2024-2516)

2024-04-1800:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
13
amazon linux 2 webkitgtk4
alas-2024-2516
denial-of-service
cve-2023-42956
validation
cve-2024-23263
state management
cve-2024-23284
content security policy

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.5

Confidence

Low

EPSS

0.001

Percentile

29.1%

The version of webkitgtk4 installed on the remote host is prior to 2.42.5-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2516 advisory.

  • The issue was addressed with improved memory handling. This issue is fixed in Safari 17.2, iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2. Processing web content may lead to a denial-of-service. (CVE-2023-42956)

  • A logic issue was addressed with improved validation. This issue is fixed in tvOS 17.4, macOS Sonoma 14.4, visionOS 1.1, iOS 17.4 and iPadOS 17.4, watchOS 10.4, iOS 16.7.6 and iPadOS 16.7.6, Safari 17.4.
    Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
    (CVE-2024-23263)

  • A logic issue was addressed with improved state management. This issue is fixed in tvOS 17.4, macOS Sonoma 14.4, visionOS 1.1, iOS 17.4 and iPadOS 17.4, watchOS 10.4, iOS 16.7.6 and iPadOS 16.7.6, Safari 17.4.
    Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
    (CVE-2024-23284)

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

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2024-2516.
##

include('compat.inc');

if (description)
{
  script_id(193522);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/18");

  script_cve_id("CVE-2023-42956", "CVE-2024-23263", "CVE-2024-23284");

  script_name(english:"Amazon Linux 2 : webkitgtk4 (ALAS-2024-2516)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of webkitgtk4 installed on the remote host is prior to 2.42.5-1. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2-2024-2516 advisory.

  - The issue was addressed with improved memory handling. This issue is fixed in Safari 17.2, iOS 17.2 and
    iPadOS 17.2, macOS Sonoma 14.2. Processing web content may lead to a denial-of-service. (CVE-2023-42956)

  - A logic issue was addressed with improved validation. This issue is fixed in tvOS 17.4, macOS Sonoma 14.4,
    visionOS 1.1, iOS 17.4 and iPadOS 17.4, watchOS 10.4, iOS 16.7.6 and iPadOS 16.7.6, Safari 17.4.
    Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
    (CVE-2024-23263)

  - A logic issue was addressed with improved state management. This issue is fixed in tvOS 17.4, macOS Sonoma
    14.4, visionOS 1.1, iOS 17.4 and iPadOS 17.4, watchOS 10.4, iOS 16.7.6 and iPadOS 16.7.6, Safari 17.4.
    Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
    (CVE-2024-23284)

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://alas.aws.amazon.com/AL2/ALAS-2024-2516.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-42956.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-23263.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-23284.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update webkitgtk4' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/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-2023-42956");

  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:"2024/03/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/04/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:webkitgtk4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:webkitgtk4-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:webkitgtk4-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:webkitgtk4-jsc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:webkitgtk4-jsc-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Amazon Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var pkgs = [
    {'reference':'webkitgtk4-2.42.5-1.amzn2.0.3', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-2.42.5-1.amzn2.0.3', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-2.42.5-1.amzn2.0.3', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-debuginfo-2.42.5-1.amzn2.0.3', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-debuginfo-2.42.5-1.amzn2.0.3', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-debuginfo-2.42.5-1.amzn2.0.3', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-devel-2.42.5-1.amzn2.0.3', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-devel-2.42.5-1.amzn2.0.3', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-devel-2.42.5-1.amzn2.0.3', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-jsc-2.42.5-1.amzn2.0.3', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-jsc-2.42.5-1.amzn2.0.3', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-jsc-2.42.5-1.amzn2.0.3', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-jsc-devel-2.42.5-1.amzn2.0.3', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-jsc-devel-2.42.5-1.amzn2.0.3', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'webkitgtk4-jsc-devel-2.42.5-1.amzn2.0.3', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':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 = 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 && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    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, "webkitgtk4 / webkitgtk4-debuginfo / webkitgtk4-devel / etc");
}

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.5

Confidence

Low

EPSS

0.001

Percentile

29.1%