A vulnerability in the boot logic of Cisco IOS XE Software could allow an authenticated, local attacker with level 15 privileges or an unauthenticated attacker with physical access to execute arbitrary code on the underlying Linux operating system of an affected device. This vulnerability is due to incorrect validations of specific function arguments that are passed to the boot script. An attacker could exploit this vulnerability by tampering with a specific file, which an affected device would process during the initial boot process. On systems that are protected by the Unified Extensible Firmware Interface (UEFI) secure boot feature, a successful exploit could allow the attacker to execute unsigned code at boot time and bypass the image verification check in the secure boot process of the affected 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: 2021-03-24T20:07:09.496032Z

Updated: 2024-11-08T23:33:24.738Z

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

Link: CVE-2021-1398

cve-icon Vulnrichment

Updated: 2024-08-03T16:11:17.059Z

cve-icon NVD

Status : Modified

Published: 2021-03-24T20:15:14.213

Modified: 2023-11-07T03:28:12.687

Link: CVE-2021-1398

cve-icon Redhat

No data.