CVE-2020-3234 HIGH

CVE-2020-3234: Cisco IOS Software for Cisco Industrial Routers Virtual Device Server Static Credentials Vulnerability

Vendor Cisco
Product Cisco IOS 12.2(60)EZ16
Weakness CWE-798 · Hardcoded credentials
Published June 3, 2020
Last update November 15, 2024

CVSS base score

8.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

A vulnerability in the virtual console authentication of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an authenticated but low-privileged, local attacker to log in to the Virtual Device Server (VDS) of an affected device by using a set of default credentials. The vulnerability is due to the presence of weak, hard-coded credentials. An attacker could exploit this vulnerability by authenticating to the targeted device and then connecting to VDS through the device’s virtual console by using the static credentials. A successful exploit could allow the attacker to access the Linux shell of VDS as the root user.

Key dates

02Disclosure timeline

June 3, 2020 CVE published
November 15, 2024 Record updated