CVE-2021-1421: Cisco Enterprise NFV Infrastructure Software Command Injection Vulnerability
A vulnerability in Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to perform a command injection attack on an affected device. The vulnerability is due to insufficient validation of user-supplied input to a configuration command. An attacker could exploit this vulnerability by including malicious input during the execution of this command. A successful exploit could allow a non-privileged attacker authenticated in the restricted CLI to execute arbitrary commands on the underlying operating system (OS) with root privileges.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-1421?
CVE-2021-1421 is a vulnerability in Cisco Enterprise NFV Infrastructure Software (NFVIS) that allows an authenticated, local attacker to perform a command injection attack on an affected device.
What is the severity of CVE-2021-1421?
CVE-2021-1421 has a severity rating of 7.8 (high).
How does CVE-2021-1421 affect Cisco Enterprise NFV Infrastructure Software?
CVE-2021-1421 affects Cisco Enterprise NFV Infrastructure Software (NFVIS) versions up to and including 4.5.1.
How can an attacker exploit CVE-2021-1421?
An attacker can exploit CVE-2021-1421 by injecting malicious commands into a configuration command in Cisco Enterprise NFV Infrastructure Software (NFVIS).
Is there a fix for CVE-2021-1421?
Yes, Cisco has released a security advisory with information on how to mitigate this vulnerability. Please refer to the Cisco Security Advisory for detailed guidance.