Linux Kernel Access Point eapol.c eapol_auth_key_handle improper authorization

Summaryinfo

A vulnerability has been found in Linux Kernel and classified as critical. This vulnerability affects the function eapol_auth_key_handle of the file eapol.c of the component Access Point Handler. Performing a manipulation results in improper authorization. This vulnerability is known as CVE-2023-52161. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel (Operating System) (the affected version unknown). This affects the function eapol_auth_key_handle of the file eapol.c of the component Access Point Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Access Point functionality in eapol_auth_key_handle in eapol.c in iNet wireless daemon (IWD) before 2.14 allows attackers to gain unauthorized access to a protected Wi-Fi network. An attacker can complete the EAPOL handshake by skipping Msg2/4 and instead sending Msg4/4 with an all-zero key.

The weakness was published 02/22/2024. The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2023-52161 since 12/29/2023. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/30/2024). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

License

• open-source

Website

• Vendor: https://www.kernel.org/

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CPE 2.2info

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