CVE-2021-40123 Cisco Identity Services Engine File Download Vulnerability

Medium 4.3 Published 21 Oct 2021 Updated 7 Nov 2024

An authenticated attacker with read-only privileges can download restricted files from Cisco ISE due to incorrect permission settings.

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-2021-40123?

CVE-2021-40123 is a medium-severity missing authorization vulnerability in Cisco Identity Services Engine, published on 21 Oct 2021. 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 Identity Services Engine (ISE) could allow an authenticated, remote attacker with administrative read-only privileges to download files that should be restricted. This vulnerability is due to incorrect permissions settings on an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request to the device. A successful exploit could allow the attacker to download files that should be restricted.

Weakness: CWE-276, CWE-266

Which versions are affected by CVE-2021-40123?

It affects 1 product.

Products include Cisco Identity Services Engine.

How do I fix CVE-2021-40123?

No fix has been published for CVE-2021-40123 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-2021-40123 being exploited?

There is no known exploitation of CVE-2021-40123 in the wild and no public exploit code.

All Cisco Identity Services Engine vulnerabilities

Sources

Also known as GHSA-vf6w-26pr-6vvq.