2021-30797 | Apple tvOS WebKit Remote Code Execution (HT212604)

By Max On Jul 23, 2021

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6.0	$0-$5k	0.73+

A vulnerability classified as critical was found in Apple tvOS up to 14.6 (Digital Media Player). Affected by this vulnerability is an unknown code of the component WebKit. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 07/19/2021 by Ivan Fratric as HT212604 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2021-30797. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn’t need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/23/2021). The advisory points out:

Processing maliciously crafted web content may lead to code execution

Upgrading to version 14.7 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark: