CVE-2018-0156

Published Mar 28, 2018

Last updated 3 days ago

Overview

Description
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted packet to an affected device on TCP port 4786. Only Smart Install client switches are affected. Cisco devices that are configured as a Smart Install director are not affected by this vulnerability. Cisco Bug IDs: CSCvd40673.
Source
ykramarz@cisco.com
NVD status
Modified

Risk scores

CVSS 3.1

Type
Primary
Base score
7.5
Impact score
3.6
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
7.8
Impact score
6.9
Exploitability score
10
Vector string
AV:N/AC:L/Au:N/C:N/I:N/A:C

Known exploits

Data from CISA

Vulnerability name
Cisco IOS Software and Cisco IOS XE Software Smart Install Denial-of-Service Vulnerability
Exploit added on
Mar 3, 2022
Exploit action due
Mar 17, 2022
Required action
Apply updates per vendor instructions.

Weaknesses

ykramarz@cisco.com
CWE-399
nvd@nist.gov
CWE-20

Social media

Hype score
Not currently trending

Configurations