CVE-2019-12660 Cisco IOS XE Software ASIC Register Write Vulnerability

Medium 5.5 Published 25 Sep 2019 Updated 21 Nov 2024

An authenticated local attacker can bypass authorization checks to write to ASIC registers, modifying device configuration and compromising security.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-12660?

CVE-2019-12660 is a medium-severity missing authorization vulnerability in Cisco Ios Xe, published on 25 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to write values to the underlying memory of an affected device. The vulnerability is due to improper input validation and authorization of specific commands that a user can execute within the CLI. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a specific set of commands. A successful exploit could allow the attacker to modify the configuration of the device to cause it to be non-secure and abnormally functioning.

Weakness: CWE-668

Which versions are affected by CVE-2019-12660?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2019-12660?

No fix has been published for CVE-2019-12660 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-2019-12660 being exploited?

There is no known exploitation of CVE-2019-12660 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-xq77-4xgj-83fm.