CVE-2021-1414: Cisco RV340 set_snmp usmUserPrivKey Command Injection Remote Code Execution Vulnerability
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.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV340 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the processing of JSON-RPC requests. When parsing the usmUserPrivKey property, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the www-data user.
Affected Software
Event History
Frequently Asked Questions
What is Cisco RV340 set_snmp usmUserPrivKey Command Injection Remote Code Execution Vulnerability?
Cisco RV340 set_snmp usmUserPrivKey Command Injection Remote Code Execution Vulnerability is a vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers that allows an authenticated, remote attacker to execute arbitrary code with elevated privileges.
How severe is CVE-2021-1414?
The severity of CVE-2021-1414 is medium with a CVSS score of 6.3.
Which software versions are affected by Cisco RV340 set_snmp usmUserPrivKey Command Injection Remote Code Execution Vulnerability?
Cisco RV340 Firmware versions up to exclusive 1.0.03.21, Cisco RV340W Firmware versions up to exclusive 1.0.03.21, Cisco RV345 Firmware versions up to exclusive 1.0.03.21, and Cisco RV345p Firmware versions up to exclusive 1.0.03.21 are affected.
How can an attacker exploit this vulnerability?
An authenticated, remote attacker can exploit the Cisco RV340 set_snmp usmUserPrivKey Command Injection Remote Code Execution Vulnerability by executing arbitrary code with elevated privileges equivalent to the web service process on the affected device.
Is Cisco RV340, RV340W, RV345, or RV345P vulnerable to this vulnerability?
Yes, Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers are vulnerable to the Cisco RV340 set_snmp usmUserPrivKey Command Injection Remote Code Execution Vulnerability.