CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
60.0%
The remote host is running a version of macOS / Mac OS X that is 11.x prior to 11.2.3 Big Sur. It is, therefore, affected by a memory corruption issue due to insufficient validation. An attacker can exploit this with crafted web content to cause arbitrary code execution.
Note that Nessus has not tested for this issue but has instead relied only on the operating systemβs self-reported version number.
##
# (C) Tenable Network Security, Inc.
##
include('compat.inc');
if (description)
{
script_id(147658);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/28");
script_cve_id("CVE-2021-1844");
script_xref(name:"APPLE-SA", value:"HT212220");
script_xref(name:"APPLE-SA", value:"APPLE-SA-2021-03-08-2");
script_xref(name:"IAVA", value:"2021-A-0126-S");
script_name(english:"macOS 11.x < 11.2.3 (HT212220)");
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 11.2.3 Big Sur. It is, therefore,
affected by a memory corruption issue due to insufficient validation. An attacker can exploit this with crafted web
content to cause arbitrary code execution.
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/HT212220");
script_set_attribute(attribute:"solution", value:
"Upgrade to macOS 11.2.3 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
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:H/I:H/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-2021-1844");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/03/08");
script_set_attribute(attribute:"patch_publication_date", value:"2021/03/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/11");
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');
app_info = vcf::apple::macos::get_app_info();
constraints = [
{ 'min_version' : '11.0', 'fixed_version' : '11.2.3', 'fixed_display' : 'macOS Big Sur 11.2.3' }
];
vcf::apple::macos::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
60.0%