A vulnerability, which was classified as problematic, was found in Apple watchOS up to 4.2 (Smartwatch Operating System). This affects an unknown code block of the component State Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

In iOS before 11.3, tvOS before 11.3, watchOS before 4.3, and macOS before High Sierra 10.13.4, an information disclosure issue existed in the transition of program state. This issue was addressed with improved state handling.

The bug was discovered 03/29/2018. The weakness was shared 07/19/2018 as HT208696 (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2018-4185 since 01/02/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 112 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 115340, 115341, 115342 and 115343 are related to this item.

Productinfo

Type

• Smartwatch Operating System

Vendor

• Apple

Name

• watchOS

Version

• 4.0
• 4.1
• 4.2

License

• commercial

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