CVE-2020-3211 Cisco IOS XE Software Web UI Command Injection Vulnerability

High 7.2 Published 3 Jun 2020 Updated 15 Nov 2024

Authenticated attackers can execute arbitrary root commands on Cisco IOS XE devices via the web UI due to improper input sanitization.

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-2020-3211?

CVE-2020-3211 is a high-severity command injection vulnerability in Cisco Ios Xe, published on 3 Jun 2020. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system of an affected device. The vulnerability is due to improper input sanitization. An attacker who has valid administrative access to an affected device could exploit this vulnerability by supplying a crafted input parameter on a form in the web UI and then submitting that form. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the device, which could lead to complete system compromise.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2020-3211?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2020-3211?

No fix has been published for CVE-2020-3211 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-2020-3211 being exploited?

There is no known exploitation of CVE-2020-3211 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-px98-8qfg-fm83.