Description
A vulnerability in the secure boot process of Cisco FXOS Software could allow an authenticated, local attacker to bypass the secure boot mechanisms. The vulnerability is due to insufficient protections of the secure boot process. An attacker could exploit this vulnerability by injecting code into a specific file that is then referenced during the device boot process. A successful exploit could allow the attacker to break the chain of trust and inject code into the boot process of the device which would be executed at each boot and maintain persistence across reboots.
Published: 2020-10-21
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-24726 A vulnerability in the secure boot process of Cisco FXOS Software could allow an authenticated, local attacker to bypass the secure boot mechanisms. The vulnerability is due to insufficient protections of the secure boot process. An attacker could exploit this vulnerability by injecting code into a specific file that is then referenced during the device boot process. A successful exploit could allow the attacker to break the chain of trust and inject code into the boot process of the device which would be executed at each boot and maintain persistence across reboots.
History

Wed, 13 Nov 2024 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Subscriptions

Cisco Firepower 4110 Firepower 4112 Firepower 4115 Firepower 4120 Firepower 4125 Firepower 4140 Firepower 4145 Firepower 4150 Firepower 9300 Sm-24 Firepower 9300 Sm-36 Firepower 9300 Sm-40 Firepower 9300 Sm-44 Firepower 9300 Sm-44 X 3 Firepower 9300 Sm-48 Firepower 9300 Sm-56 Firepower 9300 Sm-56 X 3 Firepower Extensible Operating System
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-13T17:48:47.807Z

Reserved: 2019-12-12T00:00:00.000Z

Link: CVE-2020-3455

cve-icon Vulnrichment

Updated: 2024-08-04T07:37:54.973Z

cve-icon NVD

Status : Modified

Published: 2020-10-21T19:15:16.170

Modified: 2024-11-21T05:31:06.197

Link: CVE-2020-3455

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses