CVE-2019-12672 Cisco IOS XE Software Arbitrary Code Execution Vulnerability

Medium 6.2 Published 25 Sep 2019 Updated 20 Nov 2024

An authenticated local attacker with physical access can execute arbitrary code with root privileges by inserting a malicious USB device into a Cisco IOS XE device.

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-2019-12672?

CVE-2019-12672 is a medium-severity path traversal vulnerability in Cisco Ios, 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 filesystem of Cisco IOS XE Software could allow an authenticated, local attacker with physical access to an affected device to execute arbitrary code on the underlying operating system (OS) with root privileges. The vulnerability is due to insufficient file location validation. An attacker could exploit this vulnerability by placing code in a specific format on a USB device and inserting it into an affected Cisco device. A successful exploit could allow the attacker to execute the code with root privileges on the underlying OS of the affected device.

Weakness: CWE-59

Which versions are affected by CVE-2019-12672?

It affects 1 product.

Products include Cisco Ios.

How do I fix CVE-2019-12672?

No fix has been published for CVE-2019-12672 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2019-12672 being exploited?

There is no known exploitation of CVE-2019-12672 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-chch-v8xx-wcp7.