CVE-2018-0301 Memory corruption in Cisco NX-OS unknown

Critical 9.8 Published 20 Jun 2018 Updated 29 Nov 2024

Unauthenticated remote attackers can execute arbitrary code as root via crafted packets to the NX-API management interface, which is disabled by default.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-0301?

CVE-2018-0301 is a critical memory corruption vulnerability in Cisco Nx-Os, published on 20 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to craft a packet to the management interface on an affected system, causing a buffer overflow. The vulnerability is due to incorrect input validation in the authentication module of the NX-API subsystem. An attacker could exploit this vulnerability by sending a crafted HTTP or HTTPS packet to the management interface of an affected system with the NX-API feature enabled. An exploit could allow the attacker to execute arbitrary code as root. Note: NX-API is disabled by default. This vulnerability affects: MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules. Cisco Bug IDs: CSCvd45804, CSCve02322, CSCve02412.

Weakness: CWE-119, CWE-20

Which versions are affected by CVE-2018-0301?

It affects 1 product.

Products include Cisco Nx-Os.

How do I fix CVE-2018-0301?

No fix has been published for CVE-2018-0301 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-0301 being exploited?

There is no known exploitation of CVE-2018-0301 in the wild and no public exploit code.

All Cisco Nx-Os vulnerabilities

Sources

Also known as GHSA-jpgw-r8hc-2x2x.