CVE-2021-1443 MEDIUM

CVE-2021-1443: Cisco IOS XE Software Web UI OS Command Injection Vulnerability

Vendor Cisco
Product Cisco IOS XE Software
Weakness CWE-77
Published March 24, 2021
Last update November 8, 2024

CVSS base score

5.5/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to execute arbitrary code with root privileges on the underlying operating system of an affected device. The vulnerability exists because the affected software improperly sanitizes values that are parsed from a specific configuration file. An attacker could exploit this vulnerability by tampering with a specific configuration file and then sending an API call. A successful exploit could allow the attacker to inject arbitrary code that would be executed on the underlying operating system of the affected device. To exploit this vulnerability, the attacker would need to have a privileged set of credentials to the device.

Key dates

02Disclosure timeline

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