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nessusThis script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.MACOS_HT212325.NASL
HistoryApr 28, 2021 - 12:00 a.m.

macOS 11.x < 11.3 (HT212325)

2021-04-2800:00:00
This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
97

10 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.2 High

AI Score

Confidence

High

0.57 Medium

EPSS

Percentile

97.7%

The remote host is running a version of macOS / Mac OS X that is 11.x prior to 11.3 Big Sur. It is, therefore, affected by multiple vulnerabilities including the following:

  • A memory corruption issue which could allow an application restricted memory read access (CVE-2021-1808).

  • A memory corruption issue which could allow an application to cause unexpected system termination or to write kernel memory (CVE-2021-1828).

  • An out-of-bounds wirte issue which could allow a malicious application to execute arbitrary code with kernel privileges (CVE-2021-1834).

Note that Nessus has not tested for this issue but has instead relied only on the operating system’s self-reported version number.

##
# (C) Tenable Network Security, Inc.
##

include('compat.inc');

if (description)
{
  script_id(149041);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/28");

  script_cve_id(
    "CVE-2020-7463",
    "CVE-2020-8037",
    "CVE-2020-8285",
    "CVE-2020-8286",
    "CVE-2021-1739",
    "CVE-2021-1740",
    "CVE-2021-1784",
    "CVE-2021-1808",
    "CVE-2021-1809",
    "CVE-2021-1810",
    "CVE-2021-1811",
    "CVE-2021-1813",
    "CVE-2021-1814",
    "CVE-2021-1815",
    "CVE-2021-1817",
    "CVE-2021-1820",
    "CVE-2021-1824",
    "CVE-2021-1825",
    "CVE-2021-1826",
    "CVE-2021-1828",
    "CVE-2021-1829",
    "CVE-2021-1832",
    "CVE-2021-1834",
    "CVE-2021-1839",
    "CVE-2021-1840",
    "CVE-2021-1841",
    "CVE-2021-1843",
    "CVE-2021-1846",
    "CVE-2021-1847",
    "CVE-2021-1849",
    "CVE-2021-1851",
    "CVE-2021-1853",
    "CVE-2021-1855",
    "CVE-2021-1857",
    "CVE-2021-1858",
    "CVE-2021-1859",
    "CVE-2021-1860",
    "CVE-2021-1861",
    "CVE-2021-1867",
    "CVE-2021-1868",
    "CVE-2021-1872",
    "CVE-2021-1873",
    "CVE-2021-1875",
    "CVE-2021-1876",
    "CVE-2021-1878",
    "CVE-2021-1880",
    "CVE-2021-1881",
    "CVE-2021-1882",
    "CVE-2021-1883",
    "CVE-2021-1884",
    "CVE-2021-1885",
    "CVE-2021-30652",
    "CVE-2021-30653",
    "CVE-2021-30655",
    "CVE-2021-30657",
    "CVE-2021-30658",
    "CVE-2021-30659",
    "CVE-2021-30660",
    "CVE-2021-30661"
  );
  script_xref(name:"APPLE-SA", value:"HT212325");
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2021-04-26-2");
  script_xref(name:"IAVA", value:"2021-A-0202-S");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/11/17");
  script_xref(name:"CEA-ID", value:"CEA-2021-0025");

  script_name(english:"macOS 11.x < 11.3 (HT212325)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a macOS security update.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of macOS / Mac OS X that is 11.x prior to 11.3 Big Sur. It is, therefore,
affected by multiple vulnerabilities including the following:

  - A memory corruption issue which could allow an application restricted memory read access (CVE-2021-1808).

  - A memory corruption issue which could allow an application to cause unexpected system termination or to 
    write kernel memory (CVE-2021-1828).

  - An out-of-bounds wirte issue which could allow a malicious application to execute arbitrary code with 
    kernel privileges (CVE-2021-1834).

Note that Nessus has not tested for this issue but has instead relied only on the operating system's self-reported
version number.");
  script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT212325");
  script_set_attribute(attribute:"solution", value:
"Upgrade to macOS 11.3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-30655");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'macOS Gatekeeper check bypass');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/04/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/04/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/04/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:macos:11.0");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_ports("Host/MacOSX/Version", "Host/local_checks_enabled", "Host/MacOSX/packages/boms");

  exit(0);
}

include('vcf.inc');
include('vcf_extras_apple.inc');

var app_info = vcf::apple::macos::get_app_info();
var constraints = [{ 'min_version' : '11.0', 'fixed_version' : '11.3', 'fixed_display' : 'macOS Big Sur 11.3' }];

vcf::apple::macos::check_version_and_report(
  app_info:app_info, 
  constraints:constraints, 
  severity:SECURITY_HOLE
);
VendorProductVersionCPE
applemacos11.0cpe:/o:apple:macos:11.0
applemac_os_x11.0cpe:/o:apple:mac_os_x:11.0

References

10 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.2 High

AI Score

Confidence

High

0.57 Medium

EPSS

Percentile

97.7%