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CVE-2020-3119

A vulnerability in the Cisco Discovery Protocol implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary …

Impact

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).

Affected products

VendorProductAffected versions
CiscoNx-Os
from 7.0\(3\)f2 before 9.3\(2\)
from 7.0\(3\)i before 7.0\(3\)i7\(8\)
from 7.1 before 7.3\(6\)n1\(1\)
before 9.3\(2\)
from 14.0 before 14.2\(1j\)
CiscoUcs Manager
before 3.2\(3m\)
from 4.0 before 4.0\(4f\)

Weakness classification

CWE-787

References