CVE-2018-15371 Cisco IOS XE Software Shell Access Authentication Bypass Vulnerability

Medium 6.7 Published 5 Oct 2018 Updated 26 Nov 2024

An authenticated local attacker can bypass authentication to gain root shell access on Cisco IOS XE devices if the shell access feature is enabled.

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-2018-15371?

CVE-2018-15371 is a medium-severity authentication bypass vulnerability in Cisco Ios Xe, published on 5 Oct 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the shell access request mechanism of Cisco IOS XE Software could allow an authenticated, local attacker to bypass authentication and gain unrestricted access to the root shell of an affected device. The vulnerability exists because the affected software has insufficient authentication mechanisms for certain commands. An attacker could exploit this vulnerability by requesting access to the root shell of an affected device, after the shell access feature has been enabled. A successful exploit could allow the attacker to bypass authentication and gain unrestricted access to the root shell of the affected device.

Weakness: CWE-287, CWE-284

Which versions are affected by CVE-2018-15371?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2018-15371?

No fix has been published for CVE-2018-15371 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2018-15371 being exploited?

There is no known exploitation of CVE-2018-15371 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-6q3f-rc7g-jc2x.