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.
References
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 05:44
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| References | () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-cat-verify-BQ5hrXgH - Vendor Advisory |
Information
Published : 2021-03-24 20:15
Updated : 2024-11-21 05:44
NVD link : CVE-2021-1453
Mitre link : CVE-2021-1453
CVE.ORG link : CVE-2021-1453
JSON object : View
Products Affected
cisco
- ios_xe
CWE
CWE-347
Improper Verification of Cryptographic Signature