CVE-2020-3473 HIGH

CVE-2020-3473: Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerability

Vendor Cisco
Product Cisco IOS XR Software
Weakness CWE-264
Published September 4, 2020
Last update November 13, 2024

CVSS base score

7.8/10
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:U/C:H/I:H/A:H

What the vulnerability does

01Description

A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local CLI shell user to elevate privileges and gain full administrative control of the device. The vulnerability is due to incorrect mapping of a command to task groups within the source code. An attacker could exploit this vulnerability by first authenticating to the local CLI shell on the device and using the CLI command to bypass the task group–based checks. A successful exploit could allow the attacker to elevate privileges and perform actions on the device without authorization checks.

Key dates

02Disclosure timeline

September 4, 2020 CVE published
November 13, 2024 Record updated