According to its banner, the version of Apple TV on the remote device is prior to 14.3. It is, therefore, affected by multiple vulnerabilities as described in the HT212005 advisory:
An out-of-bounds write issue within CoreAudio processing may allow a maliciously crafted audio file to cause arbitrary code execution. (CVE-2020-27948)
A memory corruption issue within FontParser processing may allow a maliciously crafted font file to cause arbitrary code execution. (CVE-2020-27943, CVE-2020-27944, CVE-2020-29624)
An out-of-bounds read isue within ImageIO processing may allow maliciously crafted image to cause arbitrary code execution. (CVE-2020-29618) Note that Nessus has not tested for these issues but has instead relied only on the applicationβs self-reported version number.
##
# (C) Tenable Network Security, Inc.
##
include('compat.inc');
if (description)
{
script_id(146458);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/10");
script_cve_id(
"CVE-2020-15969",
"CVE-2020-27943",
"CVE-2020-27944",
"CVE-2020-27946",
"CVE-2020-27948",
"CVE-2020-29611",
"CVE-2020-29617",
"CVE-2020-29618",
"CVE-2020-29619",
"CVE-2020-29624"
);
script_xref(name:"APPLE-SA", value:"HT212005");
script_xref(name:"APPLE-SA", value:"APPLE-SA-2020-12-14-7");
script_name(english:"Apple TV < 14.3 Multiple Vulnerabilities");
script_set_attribute(attribute:"synopsis", value:
"The remote Apple TV device is affected by multiple vulnerabilities");
script_set_attribute(attribute:"description", value:
"According to its banner, the version of Apple TV on the remote device is prior to 14.3. It is, therefore, affected by
multiple vulnerabilities as described in the HT212005 advisory:
- An out-of-bounds write issue within CoreAudio processing may allow a maliciously crafted audio file to cause
arbitrary code execution. (CVE-2020-27948)
- A memory corruption issue within FontParser processing may allow a maliciously crafted font file to cause
arbitrary code execution. (CVE-2020-27943, CVE-2020-27944, CVE-2020-29624)
- An out-of-bounds read isue within ImageIO processing may allow maliciously crafted image to cause arbitrary
code execution. (CVE-2020-29618)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported
version number.");
script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT212005");
script_set_attribute(attribute:"solution", value:
"Upgrade to Apple TV version 14.3 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: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-2020-29624");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-15969");
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:"2020/12/14");
script_set_attribute(attribute:"patch_publication_date", value:"2020/12/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/02/12");
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) 2021-2022 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('appletv_func.inc');
url = get_kb_item_or_exit('AppleTV/URL', msg:'Cannot determine Apple TV URL.');
port = get_kb_item_or_exit('AppleTV/Port', msg:'Cannot determine Apple TV port.');
build = get_kb_item_or_exit('AppleTV/Version', msg:'Cannot determine Apple TV version.');
model = get_kb_item_or_exit('AppleTV/Model', msg:'Cannot determine Apple TV model.');
fixed_build = '18K561';
tvos_ver = '14.3';
# determine gen from the model
gen = APPLETV_MODEL_GEN[model];
appletv_check_version(
build : build,
fix : fixed_build,
affected_gen : make_list(4, 5),
fix_tvos_ver : tvos_ver,
model : model,
gen : gen,
port : port,
url : url,
severity : SECURITY_WARNING
);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15969
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27943
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27944
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27946
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27948
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29611
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29617
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29618
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29619
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29624
support.apple.com/en-us/HT212005