D-Link DIR-867/DIR-878/DIR-882 1.20B10_BETA HNAP Request authentication bypass

Summaryinfo

A vulnerability was found in D-Link DIR-867, DIR-878 and DIR-882 1.20B10_BETA. It has been declared as critical. Affected by this issue is some unknown functionality. Executing a manipulation as part of HNAP Request can lead to authentication bypass. This vulnerability is tracked as CVE-2020-15633. The attack is only possible within the local network. No exploit exists.

Detailsinfo

A vulnerability has been found in D-Link DIR-867, DIR-878 and DIR-882 1.20B10_BETA (Router Operating System) and classified as critical. This vulnerability affects some unknown processing. The manipulation as part of a HNAP Request leads to a authentication bypass vulnerability. The CWE definition for the vulnerability is CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.20B10_BETA. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP requests. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the router. Was ZDI-CAN-10835.

The weakness was disclosed 07/23/2020 (Website). The advisory is available at supportannouncement.us.dlink.com. This vulnerability was named CVE-2020-15633 since 07/07/2020. Access to the local network is required for this attack to succeed. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/24/2020).

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-867
• DIR-878
• DIR-882

Version

• 1.20B10_BETA

License

• commercial

Website

• Vendor: https://www.dlink.com/

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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