Samsung Exynos Auto T5123 NAS Task authorization

Summaryinfo

A vulnerability was found in Samsung Exynos 9820, Exynos 980, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300 and Exynos Auto T5123. It has been classified as problematic. This vulnerability affects unknown code of the component NAS Task. This manipulation causes an unknown weakness. The identification of this vulnerability is CVE-2023-37367. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Samsung Exynos 9820, Exynos 980, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300 and Exynos Auto T5123. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component NAS Task. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect availability. The summary by CVE is:

An issue was discovered in Samsung Exynos Mobile Processor, Automotive Processor, and Modem (Exynos 9820, Exynos 980, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. In the NAS Task, an improperly implemented security check for standard can disallow desired services for a while via consecutive NAS messages.

The weakness was shared 09/08/2023. The advisory is shared at semiconductor.samsung.com. This vulnerability is known as CVE-2023-37367 since 06/30/2023. 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 01/17/2026).

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-41269). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Samsung

Name

• Exynos 850
• Exynos 980
• Exynos 1080
• Exynos 1280
• Exynos 1330
• Exynos 1380
• Exynos 2100
• Exynos 2200
• Exynos 9820
• Exynos Auto T5123
• Exynos Modem 5123
• Exynos Modem 5300

License

• commercial

Website

• Vendor: https://www.samsung.com/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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