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Apple Safari Security Update (HT212816)

🗓️ 22 Sep 2021 00:00:00Reported by Copyright (C) 2021 Greenbone AGType 
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Apple Safari Security Update (HT212816) addresses multiple memory corruption issues in WebKit, allowing arbitrary code execution

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Code
# SPDX-FileCopyrightText: 2021 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:apple:safari";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.818554");
  script_version("2025-07-25T05:44:05+0000");
  script_cve_id("CVE-2021-30846", "CVE-2021-30848", "CVE-2021-30849", "CVE-2021-30851");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2025-07-25 05:44:05 +0000 (Fri, 25 Jul 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-11-01 12:49:00 +0000 (Mon, 01 Nov 2021)");
  script_tag(name:"creation_date", value:"2021-09-22 17:41:46 +0530 (Wed, 22 Sep 2021)");
  script_name("Apple Safari Security Update (HT212816)");

  script_tag(name:"summary", value:"The host is missing an important security
  update according to Apple.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"Multiple flaws are due to multiple memory corruption
  issues in WebKit.");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers to
  conduct arbitrary code execution.");

  script_tag(name:"affected", value:"Apple Safari versions prior to 15 on macOS");

  script_tag(name:"solution", value:"Update to Apple Safari 15 or later. Please see the
  references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://support.apple.com/en-us/HT212816");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("General");
  script_dependencies("macosx_safari_detect.nasl");
  script_mandatory_keys("AppleSafari/MacOSX/Version", "ssh/login/osx_version");
  exit(0);
}

include("version_func.inc");
include("host_details.inc");

osName = get_kb_item("ssh/login/osx_name");
if(!osName)
  exit(0);

osVer = get_kb_item("ssh/login/osx_version");
if(!osVer || (osVer !~ "^10\.15\." && osVer !~ "^11\.") || "Mac OS X" >!< osName)
  exit(0);

if(!infos = get_app_version_and_location(cpe:CPE, exit_no_version:TRUE))
  exit(0);

vers = infos["version"];
path = infos["location"];

if(version_is_less(version:vers, test_version:"15")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"15", install_path:path);
  security_message(port:0, data:report);
  exit(0);
}

exit(99);

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25 Jul 2025 00:00Current
7.4High risk
Vulners AI Score7.4
CVSS 26.8
CVSS 3.18.8
EPSS0.02394
26