Apple tvOS up to 9.x Security input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 9.x. It has been declared as critical. This issue affects some unknown processing of the component Security. Executing a manipulation can lead to input validation. This vulnerability is registered as CVE-2016-4753. The attack needs to be launched locally. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 9.x (Digital Media Player). It has been declared as critical. This vulnerability affects some unknown processing of the component Security. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 mishandle signed disk images, which allows attackers to execute arbitrary code in a privileged context via a crafted app.

The weakness was published 09/20/2016 by Mark Mentovai with Google Inc. as HT207142 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2016-4753 since 05/11/2016. The exploitation appears to be easy. The attack needs to be approached locally. Required for exploitation is a single authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

A validation issue existed in signed disk images. This issue was addressed through improved size validation.

The vulnerability scanner Nessus provides a plugin with the ID 93776 (Apple TV < 10 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r.

Upgrading to version 10 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93776) and SecurityFocus (BID 93059†). Similar entries are available at VDB-91603, VDB-91618, VDB-91993 and VDB-91997. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93776
Nessus Name: Apple TV < 10 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 September-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: tvOS 10

Timelineinfo

05/11/2016 🔍
09/20/2016 +132 days 🔍
09/20/2016 +0 days 🔍
09/20/2016 +0 days 🔍
09/25/2016 +5 days 🔍
09/26/2016 +1 days 🔍
09/28/2016 +2 days 🔍
09/21/2022 +2184 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207142
Researcher: Mark Mentovai
Organization: Google Inc.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4753 (🔍)
GCVE (CVE): GCVE-0-2016-4753
GCVE (VulDB): GCVE-100-92140
SecurityFocus: 93059 - Apple iOS/tvOS/MacOS/watchOS CVE-2016-4753 Arbitray Code Execution Vulnerability
SecurityTracker: 1036858

See also: 🔍

Entryinfo

Created: 09/26/2016 12:05
Updated: 09/21/2022 09:51
Changes: 09/26/2016 12:05 (59), 04/26/2019 10:27 (24), 09/21/2022 09:51 (4)
Complete: 🔍
Cache ID: 216:9BA:103

Once again VulDB remains the best source for vulnerability data.

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