Apple Mac OS X Security Update (HT212825)

# 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("1.3.6.1.4.1.25623.1.0.826501");
  script_version("2026-06-11T07:15:11+0000");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2021-30869");
  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:"2026-06-11 07:15:11 +0000 (Thu, 11 Jun 2026)");
  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:"2021-10-20 15:27:00 +0000 (Wed, 20 Oct 2021)");
  script_tag(name:"creation_date", value:"2022-09-01 17:23:18 +0530 (Thu, 01 Sep 2022)");
  script_name("Apple Mac OS X Security Update (HT212825)");

  script_tag(name:"summary", value:"Apple Mac OS X is prone to a type confusion vulnerability.");

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

  script_tag(name:"insight", value:"The flaw is due to a type confusion issue
  related to improper state handling.");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers
  to execute arbitrary code with kernel privileges.");

  script_tag(name:"affected", value:"Apple Mac OS X 10.15.x prior to
  Security Update 2021-006 Catalina.");

  script_tag(name:"solution", value:"Apply Security Update 2021-006 Catalina 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/HT212825");
  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");
  exit(0);
}

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

if(!osName = get_kb_item("ssh/login/osx_name"))
  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 =~ "^10\.15")
{
  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:"19H1419"))
    {
      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);