CVE-2023-20021 Cisco Identity Services Engine Privilege Escalation Vulnerabilities

Medium 6.0 Published 5 Apr 2023 Updated 28 Oct 2024

Authenticated local attackers with Administrator privileges can execute arbitrary commands as root via crafted CLI inputs in Cisco ISE.

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-2023-20021?

CVE-2023-20021 is a medium-severity command injection vulnerability in Cisco Identity Services Engine, published on 5 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Multiple vulnerabilities in specific Cisco Identity Services Engine (ISE) CLI commands could allow an authenticated, local attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. To exploit these vulnerabilities, an attacker must have valid Administrator privileges on the affected device. These vulnerabilities are due to insufficient validation of user-supplied input. An attacker could exploit these vulnerabilities by submitting a crafted CLI command. A successful exploit could allow the attacker to elevate privileges to root.

Weakness: CWE-78

Which versions are affected by CVE-2023-20021?

It affects 1 product.

Products include Cisco Identity Services Engine.

How do I fix CVE-2023-20021?

No fix has been published for CVE-2023-20021 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-2023-20021 being exploited?

There is no known exploitation of CVE-2023-20021 in the wild and no public exploit code.

All Cisco Identity Services Engine vulnerabilities

Sources

Also known as GHSA-jhc4-m89v-hgmx.