CVE-2020-3207 Cisco IOS XE Software Command Injection Vulnerability

Medium 6.7 Published 3 Jun 2020 Updated 15 Nov 2024

An authenticated local attacker with root access can inject commands during boot to bypass Secure Boot and execute malicious code with root privileges.

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-2020-3207?

CVE-2020-3207 is a medium-severity command injection vulnerability in Cisco Ios Xe, published on 3 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the processing of boot options of specific Cisco IOS XE Software switches could allow an authenticated, local attacker with root shell access to the underlying operating system (OS) to conduct a command injection attack during device boot. This vulnerability is due to insufficient input validation checks while processing boot options. An attacker could exploit this vulnerability by modifying device boot options to execute attacker-provided code. A successful exploit may allow an attacker to bypass the Secure Boot process and execute malicious code on an affected device with root-level privileges.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2020-3207?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2020-3207?

No fix has been published for CVE-2020-3207 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-2020-3207 being exploited?

There is no known exploitation of CVE-2020-3207 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-xjg8-5473-5pjp.