CVE-2018-0301: Input Validation
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2018-0301?
The severity of CVE-2018-0301 is rated as high due to its potential for exploitation causing a buffer overflow.
How do I fix CVE-2018-0301?
To fix CVE-2018-0301, apply the recommended software updates from Cisco for affected NX-OS versions.
Which versions of Cisco NX-OS are affected by CVE-2018-0301?
CVE-2018-0301 affects Cisco NX-OS versions prior to 7.3(3)N1(1) and certain versions between 6.0 and 8.1.
Can CVE-2018-0301 be exploited remotely?
Yes, CVE-2018-0301 can be exploited by unauthenticated remote attackers targeting the management interface.
What are the potential consequences of CVE-2018-0301 exploitation?
Exploitation of CVE-2018-0301 can lead to a denial of service condition on the affected system due to buffer overflow.