CVE-2020-27873 Missing authorization in R7450
Network-adjacent attackers can access the SOAP API without authentication to disclose stored credentials, potentially leading to full router compromise.
- 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-2020-27873?
CVE-2020-27873 is a medium-severity missing authorization vulnerability in Netgear R6020 Firmware, published on 4 Feb 2021. 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 disclose sensitive information on affected installations of NETGEAR R7450 1.2.0.62_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SOAP API endpoint, which listens on TCP port 80 by default. The issue results from the lack of proper access control. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-11559.
Which versions are affected by CVE-2020-27873?
It affects 19 products.
Products include Netgear Ac2100 Firmware, Netgear Ac2400 Firmware, Netgear Ac2600 Firmware, Netgear R6020 Firmware, Netgear R6080 Firmware, Netgear R6120 Firmware and 13 more.
How do I fix CVE-2020-27873?
No fix has been published for CVE-2020-27873 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-27873 being exploited?
There is no known exploitation of CVE-2020-27873 in the wild and no public exploit code.
Other vulnerabilities in Netgear R6020 Firmware
Sources
Also known as GHSA-cj3p-75j4-74xf.