Advisory Details

November 3rd, 2022

D-Link DIR-1935 HNAP Incorrect Comparison Authentication Bypass Vulnerability

CVE ID	CVE-2022-43621
CVSS SCORE	8.8, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	D-Link
AFFECTED PRODUCTS	DIR-1935
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-1935 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from an incorrectly implemented comparison. An attacker can leverage this vulnerability to bypass authentication on the system.
ADDITIONAL DETAILS	D-Link has issued an update to correct this vulnerability. More details can be found at: https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310
DISCLOSURE TIMELINE	2022-06-17 - Vulnerability reported to vendor 2022-11-03 - Coordinated public release of advisory
CREDIT	Anonymous

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