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.
References
Link | Resource |
---|---|
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass | Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
Configuration 2 (hide)
Configuration 3 (hide)
Configuration 4 (hide)
Configuration 5 (hide)
Configuration 6 (hide)
Configuration 7 (hide)
Configuration 8 (hide)
Configuration 9 (hide)
Configuration 10 (hide)
Configuration 11 (hide)
|
Information
Published : 2020-09-22 18:15
Updated : 2020-10-23 11:21
NVD link : CVE-2019-1736
Mitre link : CVE-2019-1736
JSON object : View
CWE
CWE-347
Improper Verification of Cryptographic Signature
Products Affected
cisco
- sns-3515-k9_bios
- sns-3655-k9_bios
- fmc1000-k9_firmware
- tg5004-k9-rf_bios
- sns-3595-k9_firmware
- fmc4500-k9_firmware
- fmc1000-k9_bios
- identity_services_engine
- sns-3615-k9_bios
- sns-3695-k9_bios
- sns-3595-k9_bios
- sns-3615-k9_firmware
- tg5004-k9_bios
- sns-3655-k9_firmware
- fmc4500-k9_bios
- tg5004-k9_firmware
- sns-3515-k9_firmware
- tg5004-k9-rf_firmware
- fmc2500-k9_bios
- fmc2500-k9_firmware
- sns-3695-k9_firmware
- unified_computing_system