Description
A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.
Published: 2020-09-23
Score: 6.6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2019-10293 A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.
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 Fmc1000-k9 Bios Fmc1000-k9 Firmware Fmc2500-k9 Bios Fmc2500-k9 Firmware Fmc4500-k9 Bios Fmc4500-k9 Firmware Identity Services Engine Sns-3515-k9 Bios Sns-3515-k9 Firmware Sns-3595-k9 Bios Sns-3595-k9 Firmware Sns-3615-k9 Bios Sns-3615-k9 Firmware Sns-3655-k9 Bios Sns-3655-k9 Firmware Sns-3695-k9 Bios Sns-3695-k9 Firmware Tg5004-k9-rf Bios Tg5004-k9-rf Firmware Tg5004-k9 Bios Tg5004-k9 Firmware Unified Computing System
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-13T18:05:16.337Z

Reserved: 2018-12-06T00:00:00.000Z

Link: CVE-2019-1736

cve-icon Vulnrichment

Updated: 2024-08-04T18:28:42.301Z

cve-icon NVD

Status : Modified

Published: 2020-09-23T01:15:14.300

Modified: 2024-11-21T04:37:12.767

Link: CVE-2019-1736

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses