CVE-2020-8863 Auth bypass in Multiple Routers
Network-adjacent attackers can bypass authentication on D-Link routers to escalate privileges and execute arbitrary code.
- 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-2020-8863?
CVE-2020-8863 is a high-severity authentication bypass vulnerability in D-Link Multiple Routers, published on 23 Mar 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 DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. 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 implementation of the authentication algorithm. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the router. Was ZDI-CAN-9470.
Which versions are affected by CVE-2020-8863?
It affects 3 products.
Products include Dlink Dir-867 Firmware, Dlink Dir-878 Firmware, Dlink Dir-882 Firmware.
How do I fix CVE-2020-8863?
No fix has been published for CVE-2020-8863 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-2020-8863 being exploited?
There is no known exploitation of CVE-2020-8863 in the wild and no public exploit code.
Other vulnerabilities in D-Link Multiple Routers
Sources
Also known as GHSA-6hjg-qfm2-9xc2.