A vulnerability in the software image verification functionality of Cisco IOS XE Software for the Cisco Catalyst 9000 Family of switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. The vulnerability is due to an improper check in the code function that manages the verification of the digital signatures of system image files during the initial boot process. An attacker could exploit this vulnerability by loading unsigned software on an affected device. A successful exploit could allow the attacker to boot a malicious software image or execute unsigned code and bypass the image verification check part of the secure boot process of an affected device. To exploit this vulnerability, the attacker would need to have unauthenticated physical access to the device or obtain privileged access to the root shell on the device.
History

Sat, 09 Nov 2024 00:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-03-24T20:06:41.404049Z

Updated: 2024-11-08T23:34:21.249Z

Reserved: 2020-11-13T00:00:00

Link: CVE-2021-1453

cve-icon Vulnrichment

Updated: 2024-08-03T16:11:17.274Z

cve-icon NVD

Status : Modified

Published: 2021-03-24T20:15:15.623

Modified: 2023-11-07T03:28:20.920

Link: CVE-2021-1453

cve-icon Redhat

No data.