CVE-2015-7358

Severity CVSS v4.0:

Pending analysis

Type:

CWE-264 Permissions, Privileges, and Access Control

Publication date:

03/10/2017

Last modified:

20/04/2025

Description

The IsDriveLetterAvailable method in Driver/Ntdriver.c in TrueCrypt 7.0, VeraCrypt before 1.15, and CipherShed, when running on Windows, does not properly validate drive letter symbolic links, which allows local users to mount an encrypted volume over an existing drive letter and gain privileges via an entry in the /GLOBAL?? directory.

Impact

Vector 3.x

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

7.20

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:ciphershed:ciphershed::::::::		0.7.5.0 (including)
cpe:2.3:a:idrix:veracrypt::::::::		1.14 (including)
cpe:2.3:a:truecrypt:truecrypt:7.0:::::::*
cpe:2.3:o:microsoft:windows::::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2015-7358

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools