Apple tvOS up to 11.2 File System Events race condition

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 11.2 and classified as critical. The impacted element is an unknown function of the component File System Events. Such manipulation leads to race condition. This vulnerability is traded as CVE-2018-4167. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple tvOS up to 11.2 (Digital Media Player). Affected by this issue is an unknown code of the component File System Events. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability.

The bug was discovered 03/29/2018. The weakness was shared 03/29/2018 as HT208698 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2018-4167 since 01/02/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

A race condition was addressed with additional validation.

The vulnerability scanner Nessus provides a plugin with the ID 108786 (macOS 10.13.x < 10.13.4 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 370851 (Apple macOS High Sierra 10.13.4, Security Update 2018-002 Sierra, and Security Update 2018-002 El Capitan Not Installed).

Upgrading to version 11.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (108786). The entries VDB-115299, VDB-115297, VDB-115298 and VDB-115300 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
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: 108786
Nessus Name: macOS 10.13.x < 10.13.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902798
OpenVAS Name: Apple MacOSX Security Updates(HT208692)-01
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: tvOS 11.3

Timelineinfo

01/02/2018 🔍
03/29/2018 +86 days 🔍
03/29/2018 +0 days 🔍
03/29/2018 +0 days 🔍
03/31/2018 +2 days 🔍
04/02/2018 +2 days 🔍
04/03/2018 +1 days 🔍
02/26/2023 +1790 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208698
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4167 (🔍)
GCVE (CVE): GCVE-0-2018-4167
GCVE (VulDB): GCVE-100-115364
SecurityFocus: 101274
SecurityTracker: 1040604

See also: 🔍

Entryinfo

Created: 03/31/2018 19:45
Updated: 02/26/2023 07:32
Changes: 03/31/2018 19:45 (75), 01/19/2020 08:55 (3), 02/07/2021 09:34 (4), 02/26/2023 07:32 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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