CVE-2021-1382 Cisco IOS XE SD-WAN Software Command Injection Vulnerability

Medium 6.0 Published 24 Mar 2021 Updated 8 Nov 2024

Authenticated administrative users can inject arbitrary commands to execute code with root privileges on Cisco IOS XE SD-WAN devices.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1382?

CVE-2021-1382 is a medium-severity command injection vulnerability in Cisco Ios Xe, published on 24 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root privileges on the underlying operating system. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root privileges.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2021-1382?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2021-1382?

No fix has been published for CVE-2021-1382 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-2021-1382 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-1382 exists.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-4327-5f7x-f9p3.