CVE-2021-1473 Cisco Small Business RV Series Routers Vulnerabilities

Medium 5.3 Published 8 Apr 2021 Updated 8 Nov 2024

Remote attackers can execute arbitrary commands or bypass authentication on Cisco Small Business RV Series Routers via the web interface.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1473?

CVE-2021-1473 is a medium-severity command injection vulnerability in Cisco Small Business RV Series Router Firmware, published on 8 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-78, CWE-119

Which versions are affected by CVE-2021-1473?

It affects 4 products.

Products include Cisco Rv340 Firmware, Cisco Rv340w Firmware, Cisco Rv345 Firmware, Cisco Rv345p Firmware.

How do I fix CVE-2021-1473?

No fix has been published for CVE-2021-1473 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-1473 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-1473 exists.

Public exploit code: 1 Metasploit module.

Sources

Also known as GHSA-gvf7-w4c7-rvrg.