The remote host is running a version of Mac OS X 10.10.5 or 10.11.6 that is missing a security update. It is therefore, affected by multiple vulnerabilities in the Kernel component :
An unspecified flaw exists due to improper validation of user-supplied input. An attacker can exploit this, by convincing a user to run a specially crafted application, to disclose kernel memory contents.
(CVE-2016-4655)
An unspecified flaw exists due to improper validation of certain input. An attacker can exploit this, by convincing a user to run a specially crafted application, to execute arbitrary code with kernel level privileges. (CVE-2016-4656)
#
# (C) Tenable Network Security, Inc.
#
include('compat.inc');
if (description)
{
script_id(93317);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/25");
script_cve_id("CVE-2016-4655", "CVE-2016-4656");
script_bugtraq_id(92651, 92652);
script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-09-01-2");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/06/14");
script_name(english:"Mac OS X Multiple Vulnerabilities (Security Updates 2016-001 / 2016-005)");
script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a Mac OS X update that fixes multiple
security vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The remote host is running a version of Mac OS X 10.10.5 or 10.11.6
that is missing a security update. It is therefore, affected by
multiple vulnerabilities in the Kernel component :
- An unspecified flaw exists due to improper validation of
user-supplied input. An attacker can exploit this, by
convincing a user to run a specially crafted
application, to disclose kernel memory contents.
(CVE-2016-4655)
- An unspecified flaw exists due to improper validation of
certain input. An attacker can exploit this, by
convincing a user to run a specially crafted
application, to execute arbitrary code with kernel level
privileges. (CVE-2016-4656)");
script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT207130");
# http://lists.apple.com/archives/security-announce/2016/Sep/msg00001.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?faffe2b4");
script_set_attribute(attribute:"solution", value:
"Install Security Update 2016-005 (OS X 10.10.5) / 2016-001 (OS X
10.11.6) or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:L/AC:L/PR:N/UI:R/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-2016-4656");
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:'WebKit not_number defineProperties UAF');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/08/25");
script_set_attribute(attribute:"patch_publication_date", value:"2016/09/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/09/02");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"MacOS X Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2016-2023 Tenable Network Security, Inc.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "Host/MacOSX/packages/boms");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
# Compare 2 patch numbers to determine if patch requirements are satisfied.
# Return true if this patch or a later patch is applied
# Return false otherwise
function check_patch(year, number)
{
local_var p_split = split(patch, sep:"-");
local_var p_year = int( p_split[0]);
local_var p_num = int( p_split[1]);
if (year > p_year) return TRUE;
else if (year < p_year) return FALSE;
else if (number >= p_num) return TRUE;
else return FALSE;
}
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
# Advisory states that update 2016-005 is available for 10.10.5 and update 2016-001 is available for 10.11.6
os = get_kb_item("Host/MacOSX/Version");
if (!os) audit(AUDIT_OS_NOT, "Mac OS X");
if (!ereg(pattern:"Mac OS X 10\.(10\.5|11\.6)([^0-9]|$)", string:os)) audit(AUDIT_OS_NOT, "Mac OS X 10.10.5 or Mac OS X 10.11.6");
if ( "10.10.5" >< os) patch = "2016-005";
else if ( "10.11.6" >< os ) patch = "2016-001";
packages = get_kb_item_or_exit("Host/MacOSX/packages/boms", exit_code:1);
sec_boms_report = egrep(pattern:"^com\.apple\.pkg\.update\.(security\.|os\.SecUpd).*bom$", string:packages);
sec_boms = split(sec_boms_report, sep:'\n');
foreach package (sec_boms)
{
# Grab patch year and number
match = eregmatch(pattern:"[^0-9](20[0-9][0-9])[-.]([0-9]{3})[^0-9]", string:package);
if (empty_or_null(match[1]) || empty_or_null(match[2]))
continue;
patch_found = check_patch(year:int(match[1]), number:int(match[2]));
if (patch_found) exit(0, "The host has Security Update " + patch + " or later installed and is therefore not affected.");
}
report = '\n Missing security update : ' + patch;
report += '\n Installed security BOMs : ';
if (sec_boms_report) report += str_replace(find:'\n', replace:'\n ', string:sec_boms_report);
else report += 'n/a';
report += '\n';
security_report_v4(port:0, severity:SECURITY_HOLE, extra:report);