Summaryinfo

A vulnerability labeled as critical has been found in Tenda ADSL2-2+ Modem D840R. Impacted is an unknown function of the component DNS Handler. The manipulation results in privileges management. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Tenda ADSL2-2+ Modem D840R (the affected version unknown). Affected is an unknown part of the component DNS Handler. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 01/16/2017 by Todor Donev as EDB-ID 41078 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed by Todor Donev and been published immediately after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

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 Exploit-DB (41078). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Router Operating System

Vendor

• Tenda

Name

• ADSL2-2+ Modem D840R

License

• commercial

Website

• Vendor: https://www.tenda.com.cn/

CPE 2.3info

• 🔍

CPE 2.2info

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