CVE-2021-1415: Cisco RV340 set_snmp usmUserEngineID 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 usmUserEngineID 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 CVE-2021-1415?
CVE-2021-1415 is a vulnerability in Cisco RV340, RV340W, RV345, and RV345P routers that allows an authenticated, remote attacker to execute arbitrary code with elevated privileges.
How can an attacker exploit CVE-2021-1415?
An attacker can exploit CVE-2021-1415 through the web-based management interface of the affected Cisco routers.
What is the severity of CVE-2021-1415?
The severity of CVE-2021-1415 is medium, with a CVSS score of 6.3.
Which software versions are affected by CVE-2021-1415?
Cisco RV340, RV340W, RV345, and RV345P routers with firmware versions up to exclusive 1.0.03.21 are affected by CVE-2021-1415.
How can I mitigate CVE-2021-1415?
To mitigate CVE-2021-1415, Cisco recommends upgrading to a fixed software release.