CVE-2018-6622

Severity Score

7.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered that affects all producers of BIOS firmware who make a certain realistic interpretation of an obscure portion of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2.0 specification. An abnormal case is not handled properly by this firmware while S3 sleep and can clear TPM 2.0. It allows local users to overwrite static PCRs of TPM and neutralize the security features of it, such as seal/unseal and remote attestation.

Se descubrió un problema que afecta a todos los fabricantes de firmware de BIOS que realizan una cierta interpretación realista de una porción ofuscada de la especificación Trusted Platform Module (TPM) de Trusted Computing Group (TCG). Un caso anormal no es manejado correctamente por este firmware mientras S3 está en reposo y puede borrar TPM 2.0. Permite a los usuarios locales sobrescribir PCRs estáticos de TPM y neutralizar las características de seguridad de los mismos, como el sellado/desellado y la certificación remota.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-02-04 CVE Reserved
2018-08-17 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/105203	Third Party Advisory
https://www.usenix.org/conference/usenixsecurity18/presentation/han	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Trustedcomputinggroup Search vendor "Trustedcomputinggroup"		Trusted Platform Module Search vendor "Trustedcomputinggroup" for product "Trusted Platform Module"				2.0 Search vendor "Trustedcomputinggroup" for product "Trusted Platform Module" and version "2.0"		-		Affected