D-Link DIR-850L 1.21WW WPA Handshake authentication bypass

Summaryinfo

A vulnerability, which was classified as critical, was found in D-Link DIR-850L 1.21WW. Affected by this issue is some unknown functionality of the component WPA Handshake Handler. The manipulation results in authentication bypass. This vulnerability is reported as CVE-2018-18907. The attacker must have access to the local network to execute the attack. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in D-Link DIR-850L 1.21WW (Router Operating System). Affected is some unknown functionality of the component WPA Handshake Handler. The manipulation with an unknown input leads to a authentication bypass vulnerability. CWE is classifying the issue as CWE-305. The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered on D-Link DIR-850L 1.21WW devices. A partially completed WPA handshake is sufficient for obtaining full access to the wireless network. A client can access the network by sending packets on Data Frames to the AP without encryption.

The weakness was disclosed 06/17/2022. The advisory is available at synopsys.com. This vulnerability is traded as CVE-2018-18907 since 11/02/2018. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/17/2022).

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

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Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-850L

Version

• 1.21WW

License

• commercial

Website

• Vendor: https://www.dlink.com/

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CPE 2.2info

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