CVE-2020-3200

Published Jun 3, 2020

Last updated 4 years ago

Overview

Description
A vulnerability in the Secure Shell (SSH) server code of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. The vulnerability is due to an internal state not being represented correctly in the SSH state machine, which leads to an unexpected behavior. An attacker could exploit this vulnerability by creating an SSH connection to an affected device and using a specific traffic pattern that causes an error condition within that connection. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (DoS) condition.
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
6.8
Impact score
6.9
Exploitability score
8
Vector string
AV:N/AC:L/Au:S/C:N/I:N/A:C

Weaknesses

nvd@nist.gov
CWE-436
ykramarz@cisco.com
CWE-371

Social media

Hype score
Not currently trending

Configurations