CVE-2017-3775

Severity Score

6.4

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Some Lenovo System x server BIOS/UEFI versions, when Secure Boot mode is enabled by a system administrator, do not properly authenticate signed code before booting it. As a result, an attacker with physical access to the system could boot unsigned code.

Algunas versiones BIOS/UEFI del servidor x de Lenovo, cuando Secure Boot está habilitado por un administrador del sistema, no autentican correctamente el código firmado antes de cargarlo. Como resultado, un atacante con acceso físico al sistema podría cargar código no firmado.

*Credits: N/A

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-12-16 CVE Reserved
2018-05-04 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://support.lenovo.com/us/en/solutions/LEN-20241	2018-06-13

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Lenovo Search vendor "Lenovo"	Flex System X240 M5 Bios Search vendor "Lenovo" for product "Flex System X240 M5 Bios"	< 2.61 Search vendor "Lenovo" for product "Flex System X240 M5 Bios" and version " < 2.61"	-	Affected	in	Lenovo Search vendor "Lenovo"	Flex System X240 M5 Search vendor "Lenovo" for product "Flex System X240 M5"	-	-	Safe
Lenovo Search vendor "Lenovo"	Flex System X280 X6 Bios Search vendor "Lenovo" for product "Flex System X280 X6 Bios"	< 4.21 Search vendor "Lenovo" for product "Flex System X280 X6 Bios" and version " < 4.21"	-	Affected	in	Lenovo Search vendor "Lenovo"	Flex System X280 X6 Search vendor "Lenovo" for product "Flex System X280 X6"	-	-	Safe
Lenovo Search vendor "Lenovo"	Flex System X480 X6 Bios Search vendor "Lenovo" for product "Flex System X480 X6 Bios"	< 4.21 Search vendor "Lenovo" for product "Flex System X480 X6 Bios" and version " < 4.21"	-	Affected	in	Lenovo Search vendor "Lenovo"	Flex System X480 X6 Search vendor "Lenovo" for product "Flex System X480 X6"	-	-	Safe
Lenovo Search vendor "Lenovo"	Flex System X880 Bios Search vendor "Lenovo" for product "Flex System X880 Bios"	< 4.21 Search vendor "Lenovo" for product "Flex System X880 Bios" and version " < 4.21"	-	Affected	in	Lenovo Search vendor "Lenovo"	Flex System X880 Search vendor "Lenovo" for product "Flex System X880"	-	-	Safe
Lenovo Search vendor "Lenovo"	Nextscale Nx360 M5 Bios Search vendor "Lenovo" for product "Nextscale Nx360 M5 Bios"	< 2.61 Search vendor "Lenovo" for product "Nextscale Nx360 M5 Bios" and version " < 2.61"	-	Affected	in	Lenovo Search vendor "Lenovo"	Nextscale Nx360 M5 Search vendor "Lenovo" for product "Nextscale Nx360 M5"	-	-	Safe
Lenovo Search vendor "Lenovo"	System X3250 M6 Bios Search vendor "Lenovo" for product "System X3250 M6 Bios"	< 2.23 Search vendor "Lenovo" for product "System X3250 M6 Bios" and version " < 2.23"	-	Affected	in	Lenovo Search vendor "Lenovo"	System X3250 M6 Search vendor "Lenovo" for product "System X3250 M6"	-	-	Safe
Lenovo Search vendor "Lenovo"	System X3500 M5 Bios Search vendor "Lenovo" for product "System X3500 M5 Bios"	< 2.61 Search vendor "Lenovo" for product "System X3500 M5 Bios" and version " < 2.61"	-	Affected	in	Lenovo Search vendor "Lenovo"	System X3500 M5 Search vendor "Lenovo" for product "System X3500 M5"	-	-	Safe
Lenovo Search vendor "Lenovo"	System X3550 M5 Bios Search vendor "Lenovo" for product "System X3550 M5 Bios"	< 2.61 Search vendor "Lenovo" for product "System X3550 M5 Bios" and version " < 2.61"	-	Affected	in	Lenovo Search vendor "Lenovo"	System X3550 M5 Search vendor "Lenovo" for product "System X3550 M5"	-	-	Safe
Lenovo Search vendor "Lenovo"	System X3650 M5 Bios Search vendor "Lenovo" for product "System X3650 M5 Bios"	< 2.61 Search vendor "Lenovo" for product "System X3650 M5 Bios" and version " < 2.61"	-	Affected	in	Lenovo Search vendor "Lenovo"	System X3650 M5 Search vendor "Lenovo" for product "System X3650 M5"	-	-	Safe
Lenovo Search vendor "Lenovo"	System X3850 X6 Bios Search vendor "Lenovo" for product "System X3850 X6 Bios"	< 4.3 Search vendor "Lenovo" for product "System X3850 X6 Bios" and version " < 4.3"	-	Affected	in	Lenovo Search vendor "Lenovo"	System X3850 X6 Search vendor "Lenovo" for product "System X3850 X6"	-	-	Safe
Lenovo Search vendor "Lenovo"	System X3950 X6 Bios Search vendor "Lenovo" for product "System X3950 X6 Bios"	< 4.3 Search vendor "Lenovo" for product "System X3950 X6 Bios" and version " < 4.3"	-	Affected	in	Lenovo Search vendor "Lenovo"	System X3950 X6 Search vendor "Lenovo" for product "System X3950 X6"	-	-	Safe