CVE-2021-1384 Cisco IOx for IOS XE Software Command Injection Vulnerability

Medium 6.5 Published 24 Mar 2021 Updated 8 Nov 2024

Authenticated attackers can inject commands as root via crafted application packages in Cisco IOx, requiring immediate patching.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1384?

CVE-2021-1384 is a medium-severity command injection vulnerability in Cisco Ios Xe, published on 24 Mar 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in Cisco IOx application hosting environment of Cisco IOS XE Software could allow an authenticated, remote attacker to inject commands into the underlying operating system as the root user. This vulnerability is due to incomplete validation of fields in the application packages loaded onto IOx. An attacker could exploit this vulnerability by creating a crafted application .tar file and loading it onto the device. A successful exploit could allow the attacker to perform command injection into the underlying operating system as the root user.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2021-1384?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2021-1384?

No fix has been published for CVE-2021-1384 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-2021-1384 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-1384 exists.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-x749-h24f-x5rh.