Apple Mac OS X Security Update (HT212177)-01

# SPDX-FileCopyrightText: 2022 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.826548");
  script_version("2025-11-14T15:41:06+0000");
  script_cve_id("CVE-2021-1805", "CVE-2021-1806");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2025-11-14 15:41:06 +0000 (Fri, 14 Nov 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/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:"2021-05-04 19:35:00 +0000 (Tue, 04 May 2021)");
  script_tag(name:"creation_date", value:"2022-09-22 23:16:40 +0530 (Thu, 22 Sep 2022)");
  script_name("Apple Mac OS X Security Update (HT212177)-01");

  script_tag(name:"summary", value:"Apple Mac OS X is prone to multiple
  code execution vulnerabilities.");

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

  script_tag(name:"insight", value:"Multiple flaws exist due to,

  - An out-of-bounds write was addressed with improved input validation.

  - A race condition was addressed with additional validation.

  Please see the references for more information about the vulnerabilities.");

  script_tag(name:"impact", value:"Successful exploitation of these vulnerabilities
  execute arbitrary code with kernel privileges.");

  script_tag(name:"affected", value:"Apple Mac OS X Big Sur 11.2, macOS Catalina 10.15.x
  prior to macOS Catalina 10.15.7 Supplemental Update.");

  script_tag(name:"solution", value:"Upgrade to version 11.2.1 or apply
  macOS Catalina 10.15.7 Supplemental Update for 10.15.x. Please see the
  references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");
  script_xref(name:"URL", value:"https://support.apple.com/en-us/HT212177");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Mac OS X Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/osx_name", "ssh/login/osx_version", re:"ssh/login/osx_version=^10\.15");
  exit(0);
}
include("version_func.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" || "Mac OS X" >!< osName){
  exit(0);
}

buildVer = get_kb_item("ssh/login/osx_build");

if(osVer == "11.2"){
  fix = "11.2.1";
}
else if(version_in_range(version:osVer, test_version:"10.15", test_version2:"10.15.6")){
  fix = "Upgrade to latest OS release and apply patch from vendor";
}

else if(osVer == "10.15.7")
{
  if(version_is_less(version:buildVer, test_version:"19H524"))
  {
    fix = "Apply patch from vendor";
    osVer = osVer + " Build " + buildVer;
  }
}

if(fix)
{
  report = report_fixed_ver(installed_version:osVer, fixed_version:fix);
  security_message(data:report);
  exit(0);
}

exit(99);