According to its banner, the remote Apple TV device is a version prior to 9.1.1. It is, therefore, affected by the following vulnerabilities :
A type confusion error exists in the bundled libxslt library due to improper handling of invalid values. An attacker can exploit this to crash the application, resulting in a denial of service condition.
(CVE-2015-7995)
A memory corruption issue exists due to improper validation of user-supplied input when handling disk images. A local attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-1717)
A use-after-free error exists in the IOHIDFamily API due to improper validation of user-supplied input. A local attacker can exploit this to dereference already freed memory, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2016-1719)
A memory corruption issue exists in IOKit due to improper validation of user-supplied input. A local attacker can exploit this to cause a denial of service condition or the execution of arbitrary code.
(CVE-2016-1720)
A memory corruption issue exists in the Kernel due to improper validation of user-supplied input. A local attacker can exploit this to cause a denial of service condition or the execution of arbitrary code.
(CVE-2016-1721)
An overflow condition exists in the add_lockdown_session() function due to improper validation of user-supplied input. A local attacker can exploit this to cause a heap-based buffer overflow, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2016-1722)
Multiple memory corruption issues exist in WebKit due to improper validation of user-supplied input. A remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code.
(CVE-2016-1724, CVE-2016-1727)
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(88418);
script_version("1.13");
script_cvs_date("Date: 2018/12/14 14:58:47");
script_cve_id(
"CVE-2015-7995",
"CVE-2016-1717",
"CVE-2016-1719",
"CVE-2016-1720",
"CVE-2016-1721",
"CVE-2016-1722",
"CVE-2016-1724",
"CVE-2016-1727"
);
script_bugtraq_id(77325);
script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-01-25-1");
script_name(english:"Apple TV < 9.1.1 Multiple Vulnerabilities");
script_summary(english:"Checks the version in the banner.");
script_set_attribute(attribute:"synopsis", value:
"The remote device is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"According to its banner, the remote Apple TV device is a version prior
to 9.1.1. It is, therefore, affected by the following
vulnerabilities :
- A type confusion error exists in the bundled libxslt
library due to improper handling of invalid values. An
attacker can exploit this to crash the application,
resulting in a denial of service condition.
(CVE-2015-7995)
- A memory corruption issue exists due to improper
validation of user-supplied input when handling disk
images. A local attacker can exploit this to cause a
denial of service condition or the execution of
arbitrary code. (CVE-2016-1717)
- A use-after-free error exists in the IOHIDFamily API
due to improper validation of user-supplied input. A
local attacker can exploit this to dereference already
freed memory, resulting in a denial of service condition
or the execution of arbitrary code. (CVE-2016-1719)
- A memory corruption issue exists in IOKit due to
improper validation of user-supplied input. A local
attacker can exploit this to cause a denial of service
condition or the execution of arbitrary code.
(CVE-2016-1720)
- A memory corruption issue exists in the Kernel due to
improper validation of user-supplied input. A local
attacker can exploit this to cause a denial of service
condition or the execution of arbitrary code.
(CVE-2016-1721)
- An overflow condition exists in the
add_lockdown_session() function due to improper
validation of user-supplied input. A local attacker can
exploit this to cause a heap-based buffer overflow,
resulting in a denial of service condition or the
execution of arbitrary code. (CVE-2016-1722)
- Multiple memory corruption issues exist in WebKit due to
improper validation of user-supplied input. A remote
attacker can exploit this to cause a denial of service
condition or the execution of arbitrary code.
(CVE-2016-1724, CVE-2016-1727)");
script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT205729");
# https://lists.apple.com/archives/security-announce/2016/Jan/msg00005.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cbf27a14");
script_set_attribute(attribute:"solution", value:
"Upgrade to Apple TV version 9.1.1 or later. Note that this update is
only available for 4th generation models.");
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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-1727");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/01/14");
script_set_attribute(attribute:"patch_publication_date", value:"2016/01/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/27");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/a:apple:apple_tv");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Misc.");
script_copyright(english:"This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("appletv_version.nasl");
script_require_keys("AppleTV/Version", "AppleTV/Model", "AppleTV/URL", "AppleTV/Port");
script_require_ports("Services/www", 7000);
exit(0);
}
include("audit.inc");
include("appletv_func.inc");
url = get_kb_item('AppleTV/URL');
if (empty_or_null(url)) exit(0, 'Cannot determine Apple TV URL.');
port = get_kb_item('AppleTV/Port');
if (empty_or_null(port)) exit(0, 'Cannot determine Apple TV port.');
build = get_kb_item('AppleTV/Version');
if (empty_or_null(build)) audit(AUDIT_UNKNOWN_DEVICE_VER, 'Apple TV');
model = get_kb_item('AppleTV/Model');
if (empty_or_null(model)) exit(0, 'Cannot determine Apple TV model.');
fixed_build = "13U717";
tvos_ver = '9.1.1';
# determine gen from the model
gen = APPLETV_MODEL_GEN[model];
appletv_check_version(
build : build,
fix : fixed_build,
affected_gen : 4,
fix_tvos_ver : tvos_ver,
model : model,
gen : gen,
port : port,
url : url,
severity : SECURITY_HOLE
);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7995
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1717
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1719
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1720
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1721
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1722
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1724
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1727
www.nessus.org/u?cbf27a14
support.apple.com/en-us/HT205729