CVE-2021-1414 Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Authenticated Remote Code Execution Vulnerabilities

Medium 6.3 Published 8 Apr 2021 Updated 8 Nov 2024

Authenticated attackers can execute arbitrary code with elevated privileges on Cisco RV Series routers via crafted HTTP requests to the web interface.

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

What is CVE-2021-1414?

CVE-2021-1414 is a medium-severity unsafe deserialization vulnerability in Cisco Small Business RV Series Router Firmware, published on 8 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Multiple vulnerabilities in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code with elevated privileges equivalent to the web service process on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device.

Weakness: CWE-502

Which versions are affected by CVE-2021-1414?

It affects 4 products.

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

How do I fix CVE-2021-1414?

No fix has been published for CVE-2021-1414 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2021-1414 being exploited?

There is no known exploitation of CVE-2021-1414 in the wild and no public exploit code.

Sources

Also known as GHSA-8hgh-7cf7-366x.