CVE-2018-0306

HIGH

Cisco NX-OS < 7.3(3)n1(1) - Authenticated OS Command Injection via CLI Parser

Title source: llm
STIX 2.1

Description

A vulnerability in the CLI parser of Cisco NX-OS Software could allow an authenticated, local attacker to perform a command-injection attack on an affected device. The vulnerability is due to insufficient input validation of command arguments. An attacker could exploit this vulnerability by injecting malicious command arguments into a vulnerable CLI command. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the affected device. Note: This vulnerability requires that any feature license is uploaded to the device. The vulnerability does not require that the license be used. This vulnerability affects MDS 9000 Series Multilayer Switches, Nexus 1000V Series Switches, Nexus 1100 Series Cloud Services Platforms, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 3600 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: CSCve51693, CSCve91634, CSCve91659, CSCve91663.

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1041169

Scores

CVSS v3 7.8
EPSS 0.0056
EPSS Percentile 42.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-20 CWE-78
Status published
Products (6)
cisco/nx-os 8.1\(0.2\)s0
cisco/nx-os 8.1\(0\)bd\(0.20\)
cisco/nx-os 8.1\(0.59\)s0
cisco/nx-os 8.1\(1\)
cisco/nx-os 6.0\(2\)a8\(3\)
cisco/nx-os < 7.3\(3\)n1\(1\)
Published Jun 21, 2018
Tracked Since Feb 18, 2026