CVE-2020-8861 Auth bypass in DAP-1330

High 8.8 Published 22 Feb 2020 Updated 4 Aug 2024

Network-adjacent attackers can bypass authentication on D-Link DAP-1330 extenders to execute arbitrary code via improper cookie handling in HNAP requests.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-8861?

CVE-2020-8861 is a high-severity authentication bypass vulnerability in D-Link DAP-1330, published on 22 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-1330 1.10B01 BETA Wi-Fi range extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of cookies. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9554.

Weakness: CWE-287, CWE-303

Which versions are affected by CVE-2020-8861?

It affects 1 product.

Products include Dlink Dap-1330 Firmware.

How do I fix CVE-2020-8861?

No fix has been published for CVE-2020-8861 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-8861 being exploited?

There is no known exploitation of CVE-2020-8861 in the wild and no public exploit code.

Sources

Also known as GHSA-c85x-hq3f-wfrq.