Apple tvOS up to 11.4.1 Entitlement Verification input validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.2 | $0-$5k | 0.00 |
A vulnerability was found in Apple tvOS up to 11.4.1 (Digital Media Player). It has been rated as critical. This issue affects an unknown code block of the component Entitlement Verification Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12.
The bug was discovered 09/24/2018. The weakness was presented 04/03/2019. The identification of this vulnerability is CVE-2018-4321 since 01/02/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 118178 (macOS < 10.14 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371218 (Apple macOS Mojave 10.14 Not Installed (APPLE-SA-2018-9-24-1)).
Upgrading to version 12.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (118178). See 78550, 78551, 79411 and 79583 for similar entries.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.2
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
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Exploiting
Class: Input validationCWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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EPSS Percentile: 🔍
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Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 118178
Nessus Name: macOS < 10.14 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: tvOS 12.0
Timeline
03/21/2016 🔍01/02/2018 🔍
09/24/2018 🔍
09/24/2018 🔍
10/18/2018 🔍
04/03/2019 🔍
04/04/2019 🔍
08/22/2023 🔍
Sources
Vendor: apple.comAdvisory: support.apple.com
Status: Confirmed
CVE: CVE-2018-4321 (🔍)
SecurityFocus: 85054 - Apple Mac OS X Server APPLE-SA-2016-03-21-7 Multiple Security Vulnerabilities
See also: 🔍
Entry
Created: 04/04/2019 09:17Updated: 08/22/2023 15:13
Changes: 04/04/2019 09:17 (69), 05/24/2020 17:12 (3), 08/22/2023 15:13 (4)
Complete: 🔍
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