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Cisco NX-OS: Cisco NX-OS Software Cisco Discovery Protocol Remote Code Execution Vulnerability (CVE-2020-3119)

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Cisco NX-OS: Cisco NX-OS Software Cisco Discovery Protocol Remote Code Execution Vulnerability (CVE-2020-3119)

Severity
8
CVSS
(AV:A/AC:L/Au:N/C:C/I:C/A:C)
Published
02/05/2020
Created
02/08/2020
Added
02/07/2020
Modified
02/14/2020

Description

A vulnerability in the Cisco Discovery Protocol implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability exists because the Cisco Discovery Protocol parser does not properly validate input for certain fields in a Cisco Discovery Protocol message. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. An successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

Solution(s)

  • update-nxos

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