CVE-2015-2552

Microsoft Trusted Boot Security Feature Bypass

Severity Score

7.2

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The kernel in Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows physically proximate attackers to bypass the Trusted Boot protection mechanism, and consequently interfere with the integrity of code, BitLocker, Device Encryption, and Device Health Attestation, via a crafted Boot Configuration Data (BCD) setting, aka "Trusted Boot Security Feature Bypass Vulnerability."

El kernel en Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold y R2, Windows RT Gold y 8.1 y Windows 10 permite a atacantes físicamente próximos eludir el mecanismo de protección Trusted Boot y consecuentemente interferir con la integridad del código, BitLocker, Device Encryption y Device Health Attestation, a través de un ajuste Boot Configuration Data (BCD) manipulado, también conocido como 'Trusted Boot Security Feature Bypass Vulnerability'.

An attacker with administrative access to a Windows machine with UEFI Secure Boot enabled may bypass code signing policy checks by putting intentionally-malformed configuration options in the boot configuration database (BCD).

*Credits: N/A

CVSS Scores

NISTv2 7.2

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-03-19 CVE Reserved
2015-10-14 CVE Published
2023-03-25 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-254: 7PK - Security Features

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/archive/1/536678/100/0/threaded	Mailing List
http://www.securitytracker.com/id/1033805	Third Party Advisory

URL	Date	SRC
http://packetstormsecurity.com/files/133962/Microsoft-Trusted-Boot-Security-Feature-Bypass.html	2024-08-06

URL	Date	SRC
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-111	2019-05-15

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 10 Search vendor "Microsoft" for product "Windows 10"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows 7 Search vendor "Microsoft" for product "Windows 7"				-		sp1		Affected
Microsoft Search vendor "Microsoft"		Windows 8 Search vendor "Microsoft" for product "Windows 8"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows 8.1 Search vendor "Microsoft" for product "Windows 8.1"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Rt Search vendor "Microsoft" for product "Windows Rt"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Rt 8.1 Search vendor "Microsoft" for product "Windows Rt 8.1"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008"				-		sp2		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008"				r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2"		sp1, itanium		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008"				r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2"		sp1, x64		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012"				r2 Search vendor "Microsoft" for product "Windows Server 2012" and version "r2"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Vista Search vendor "Microsoft" for product "Windows Vista"				-		sp2		Affected