CVE-2021-1371 Cisco IOS XE SD-WAN Software Console Privilege Escalation Vulnerability

Medium 6.6 Published 24 Mar 2021 Updated 8 Nov 2024

Authenticated local attackers with read-only console access can escalate to administrative privileges in Cisco IOS XE SD-WAN devices using default configurations.

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-2021-1371?

CVE-2021-1371 is a medium-severity vulnerability in Cisco IOS XE Software, 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 the role-based access control of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker with read-only privileges to obtain administrative privileges by using the console port when the device is in the default SD-WAN configuration. This vulnerability occurs because the default configuration is applied for console authentication and authorization. An attacker could exploit this vulnerability by connecting to the console port and authenticating as a read-only user. A successful exploit could allow a user with read-only permissions to access administrative privileges.

Weakness: CWE-269

Which versions are affected by CVE-2021-1371?

It affects 1 product.

Products include Cisco Ios Xe Sd-Wan.

How do I fix CVE-2021-1371?

No fix has been published for CVE-2021-1371 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-1371 being exploited?

There is no known exploitation of CVE-2021-1371 in the wild and no public exploit code.

Sources

Also known as GHSA-8qm4-vmvc-xrpj.