CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
12.6%
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.
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | fmc1000-k9_bios | * | cpe:2.3:o:cisco:fmc1000-k9_bios:*:*:*:*:*:*:*:* |
cisco | fmc1000-k9_firmware | * | cpe:2.3:o:cisco:fmc1000-k9_firmware:*:*:*:*:*:*:*:* |
cisco | fmc2500-k9_bios | * | cpe:2.3:o:cisco:fmc2500-k9_bios:*:*:*:*:*:*:*:* |
cisco | fmc2500-k9_firmware | * | cpe:2.3:o:cisco:fmc2500-k9_firmware:*:*:*:*:*:*:*:* |
cisco | fmc4500-k9_bios | * | cpe:2.3:o:cisco:fmc4500-k9_bios:*:*:*:*:*:*:*:* |
cisco | fmc4500-k9_firmware | * | cpe:2.3:o:cisco:fmc4500-k9_firmware:*:*:*:*:*:*:*:* |
cisco | sns-3515-k9_bios | * | cpe:2.3:o:cisco:sns-3515-k9_bios:*:*:*:*:*:*:*:* |
cisco | sns-3515-k9_firmware | * | cpe:2.3:o:cisco:sns-3515-k9_firmware:*:*:*:*:*:*:*:* |
cisco | sns-3595-k9_bios | * | cpe:2.3:o:cisco:sns-3595-k9_bios:*:*:*:*:*:*:*:* |
cisco | sns-3595-k9_firmware | * | cpe:2.3:o:cisco:sns-3595-k9_firmware:*:*:*:*:*:*:*:* |
[
{
"product": "Cisco Identity Services Engine Software",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
12.6%