CVE-2020-15633 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-2020-15633?
CVE-2020-15633 is a high-severity authentication bypass vulnerability in D-Link Multiple Routers, published on 23 Jul 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 1.20B10_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.
Weakness: CWE-288
Which versions are affected by CVE-2020-15633?
It affects 3 products.
Products include D-Link Dir-867 Firmware, D-Link Dir-878 Firmware, D-Link Dir-882 Firmware.
How do I fix CVE-2020-15633?
No fix has been published for CVE-2020-15633 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-2020-15633 being exploited?
There is no known exploitation of CVE-2020-15633 in the wild and no public exploit code.
Sources
Also known as GHSA-mm3r-85wp-99j8.