Apple watchOS up to 5.3.8/6.2.8/7.0.3 Crash Reporter symlink

Summaryinfo

A vulnerability classified as critical has been found in Apple watchOS up to 5.3.8/6.2.8/7.0.3. This impacts an unknown function of the component Crash Reporter. Performing a manipulation results in symlink. This vulnerability is known as CVE-2020-10003. Attacking locally is a requirement. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple watchOS up to 5.3.8/6.2.8/7.0.3 (Smartwatch Operating System). This affects some unknown processing of the component Crash Reporter. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 11/05/2020 by Tim Michaud as HT211928 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2020-10003. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

A local attacker may be able to elevate  their privileges

Upgrading to version 5.3.9, 6.2.9 or 7.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

An issue existed within the path validation logic for symlinks. This issue was addressed with improved path sanitization.

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Productinfo

Type

• Smartwatch Operating System

Vendor

• Apple

Name

• watchOS

Version

• 5.3.0
• 5.3.1
• 5.3.2
• 5.3.3
• 5.3.4
• 5.3.5
• 5.3.6
• 5.3.7
• 5.3.8
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.7
• 6.2.8
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3

License

• commercial

Website

• Vendor: https://www.apple.com/

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