GNOME Settings Daemon up to 46.0 USB improper authorization ⚔ [Disputed]

Summaryinfo

A vulnerability classified as critical was found in GNOME Settings Daemon up to 46.0. This vulnerability affects unknown code of the component USB Handler. Executing a manipulation can lead to improper authorization. The identification of this vulnerability is CVE-2024-38394. The physical device can be targeted for the attack. There is no exploit available. It is still unclear if this vulnerability genuinely exists.

Detailsinfo

A vulnerability has been found in GNOME Settings Daemon up to 46.0 and classified as critical. This vulnerability affects an unknown function of the component USB Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Mismatches in interpreting USB authorization policy between GNOME Settings Daemon (GSD) through 46.0 and the Linux kernel's underlying device matching logic allow a physically proximate attacker to access some unintended Linux kernel USB functionality, such as USB device-specific kernel modules and filesystem implementations. NOTE: the GSD supplier indicates that consideration of a mitigation for this within GSD would be in the context of "a new feature, not a CVE."

The advisory is shared for download at pulsesecurity.co.nz. This vulnerability was named CVE-2024-38394 since 06/15/2024. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.

The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• GNOME

Name

• Settings Daemon

Version

• 46.0

License

• open-source

Website

• Vendor: https://www.gnome.org/

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