CVE-2018-3968

An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel, embedded in a legacy image format. To trigger this vulnerability, a local attacker needs to be able to supply the image to boot.

CVSS v3 7.0 HIGH
CVSS v2.0 4.4 MEDIUM

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633	Exploit Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:denx:u-boot::::::::
	cpe:2.3:a:denx:u-boot:2013.07:rc1::::::
	cpe:2.3:a:denx:u-boot:2013.07:rc2::::::
	cpe:2.3:a:denx:u-boot:2013.07:rc3::::::
	cpe:2.3:a:denx:u-boot:2014.07:rc1::::::
	cpe:2.3:a:denx:u-boot:2014.07:rc2::::::

History

21 Nov 2024, 04:06

Type	Values Removed	Values Added
References	~~() https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633 - Exploit, Third Party Advisory~~	() https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633 - Exploit, Third Party Advisory

Information

Published : 2019-03-21 17:29

Updated : 2024-11-21 04:06

NVD link : CVE-2018-3968

Mitre link : CVE-2018-3968

CVE.ORG link : CVE-2018-3968

JSON object : View

Products Affected

denx

u-boot

CWE

CWE-347

Improper Verification of Cryptographic Signature

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