CVE-2021-1432 HIGH

CVE-2021-1432: Cisco IOS XE SD-WAN Software Arbitrary Command Execution Vulnerability

Vendor Cisco
Product Cisco IOS XE Software
Weakness CWE-20 · Input validation
Published March 24, 2021
Last update November 8, 2024

CVSS base score

7.3/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as the root user. The attacker must be authenticated on the affected device as a low-privileged user to exploit this vulnerability. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by injecting arbitrary commands to a file as a lower-privileged user. The commands are then executed on the device by the root user. A successful exploit could allow the attacker to execute arbitrary commands as the root user.

Key dates

02Disclosure timeline

March 24, 2021 CVE published
November 8, 2024 Record updated