CVE-2024-20537 Cisco Identity Services Engine Authorization Bypass Vulnerability

Medium 6.5 Published 6 Nov 2024 Updated 6 Nov 2024

Authenticated attackers with Read-Only Administrator credentials can bypass authorization checks to perform unauthorized administrative functions on Cisco ISE.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-20537?

CVE-2024-20537 is a medium-severity missing authorization vulnerability in Cisco Identity Services Engine, published on 6 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to bypass the authorization mechanisms for specific administrative functions. This vulnerability is due to a lack of server-side validation of Administrator permissions. An attacker could exploit this vulnerability by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to conduct administrative functions beyond their intended access level. To exploit this vulnerability, an attacker would need Read-Only Administrator credentials.

Weakness: CWE-863

Which versions are affected by CVE-2024-20537?

It affects 1 product.

Products include Cisco Identity Services Engine.

How do I fix CVE-2024-20537?

No fix has been published for CVE-2024-20537 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2024-20537 being exploited?

There is no known exploitation of CVE-2024-20537 in the wild and no public exploit code.

All Cisco Identity Services Engine vulnerabilities

Sources

Also known as GHSA-fqm6-hhvg-fmrr.