D-Link DIR-842 3.13B05 Incorrect Implementation of Authentication Algorithm Vulnerability


This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-842 3.13B05 routers. Authentication is not required to exploit this vulnerability. 


The information has been provided by Vendor

The original article can be found at:https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10184


The specific flaw exists within the processing of HNAP GetCAPTCHAsetting requests. The issue results from the lack of proper handling of sessions. An attacker can leverage this vulnerability to execute arbitrary code in the context of the device.


Vulnerable Systems:

D-Link DIR-842 3.13B05


CVE Information:



Disclosure Timeline:
Published Date:7/23/2020

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