CVE-2021-1381 Cisco IOS XE Software Active Debug Code Vulnerability

Medium 6.1 Published 24 Mar 2021 Updated 8 Nov 2024

An attacker with high privileges or physical access can bypass command authorization to open a debugging console on Cisco IOS XE devices.

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

What is CVE-2021-1381?

CVE-2021-1381 is a medium-severity missing authorization vulnerability in Cisco Ios Xe, published on 24 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with high privileges or an unauthenticated attacker with physical access to the device to open a debugging console. The vulnerability is due to insufficient command authorization restrictions. An attacker could exploit this vulnerability by running commands on the hardware platform to open a debugging console. A successful exploit could allow the attacker to access a debugging console.

Weakness: CWE-489

Which versions are affected by CVE-2021-1381?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2021-1381?

No fix has been published for CVE-2021-1381 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-2021-1381 being exploited?

There is no known exploitation of CVE-2021-1381 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-r4g8-p4x8-42m9.