CVE-2020-3235

Published Jun 3, 2020

Last updated 3 years ago

Overview

Description
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient input validation when the software processes specific SNMP object identifiers. An attacker could exploit this vulnerability by sending a crafted SNMP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: To exploit this vulnerability by using SNMPv2c or earlier, the attacker must know the SNMP read-only community string for an affected system. To exploit this vulnerability by using SNMPv3, the attacker must know the user credentials for the affected system.
Source
ykramarz@cisco.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
7.7
Impact score
4
Exploitability score
3.1
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Severity
HIGH

CVSS 3.0

Type
Secondary
Base score
7.7
Impact score
4
Exploitability score
3.1
Vector string
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
6.3
Impact score
6.9
Exploitability score
6.8
Vector string
AV:N/AC:M/Au:S/C:N/I:N/A:C

Weaknesses

nvd@nist.gov
CWE-20
ykramarz@cisco.com
CWE-118

Social media

Hype score
Not currently trending

Configurations