A vulnerability in the bootloader of Cisco NX-OS Software could allow an unauthenticated attacker with physical access to an affected device, or an authenticated, local attacker with administrative credentials, to bypass NX-OS image signature verification. This vulnerability is due to insecure bootloader settings. An attacker could exploit this vulnerability by executing a series of bootloader commands. A successful exploit could allow the attacker to bypass NX-OS image signature verification and load unverified software.

Metrics

No CVSS v4.0

Attack Vector Physical

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

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References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-image-sig-bypas-pQDRQvjL cve-icon cve-icon
History

Wed, 04 Dec 2024 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Wed, 04 Dec 2024 16:30:00 +0000

Type Values Removed Values Added
Description A vulnerability in the bootloader of Cisco NX-OS Software could allow an unauthenticated attacker with physical access to an affected device, or an authenticated, local attacker with administrative credentials, to bypass NX-OS image signature verification. This vulnerability is due to insecure bootloader settings. An attacker could exploit this vulnerability by executing a series of bootloader commands. A successful exploit could allow the attacker to bypass NX-OS image signature verification and load unverified software.
Title Cisco NX-OS Software Image Verification Bypass Vulnerability
Weaknesses CWE-284
References
Metrics cvssV3_1

{'score': 5.2, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2024-12-04T16:13:13.890Z

Updated: 2024-12-04T21:39:35.478Z

Reserved: 2023-11-08T15:08:07.660Z

Link: CVE-2024-20397

cve-icon Vulnrichment

Updated: 2024-12-04T19:27:45.801Z

cve-icon NVD

Status : Received

Published: 2024-12-04T17:15:11.913

Modified: 2024-12-04T17:15:11.913

Link: CVE-2024-20397

cve-icon Redhat

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