A vulnerability was found in Apple macOS up to 10.13.5 (Operating System). It has been declared as problematic. This vulnerability affects an unknown code of the component IOFireWireAVC. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the "IOFireWireAVC" component. It allows attackers to execute arbitrary code in a privileged context via a crafted app that leverages a race condition.

The bug was discovered 06/01/2018. The weakness was shared 06/01/2018 as HT208849 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2018-4228 since 01/02/2018. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:

A race condition was addressed with improved locking.

The vulnerability scanner Nessus provides a plugin with the ID 110324 (macOS 10.13.x < 10.13.5 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 370985 (Apple macOS High Sierra 10.13.5, Security Update 2018-003 Sierra, Security Update 2018-003 El Capitan Not Installed).

Upgrading to version 10.13.5 2018-003 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 (110324). The entries 118673, 118642, 118643 and 118644 are related to this item.

Productinfo

Type

• Operating System

Vendor

• Apple

Name

• macOS

Version

• 10.13.0
• 10.13.1
• 10.13.2
• 10.13.3
• 10.13.4
• 10.13.5

License

• commercial

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