CVE-2020-10923 Auth bypass in R6700
Network-adjacent attackers can bypass authentication via UPnP on NETGEAR routers, potentially leading to root code execution.
- 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-2020-10923?
CVE-2020-10923 is a medium-severity authentication bypass vulnerability in Netgear R6700 Firmware, published on 28 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 NETGEAR R6700 V1.0.4.84_10.0.58 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UPnP service, which listens on TCP port 5000. A crafted UPnP message can be used to bypass authentication. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-9642.
Weakness: CWE-305
Which versions are affected by CVE-2020-10923?
It affects 1 product.
Products include Netgear R6700 Firmware.
How do I fix CVE-2020-10923?
No fix has been published for CVE-2020-10923 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-2020-10923 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-10923 exists.
Public exploit code: 1 Metasploit module.
Other vulnerabilities in Netgear R6700 Firmware
Sources
Also known as GHSA-p845-8rw7-6wm9.