CVE-2015-7359 Information

Description

The (1) IsVolumeAccessibleByCurrentUser and (2) MountDevice methods in Ntdriver.c in TrueCrypt 7.0 VeraCrypt before 1.15 and CipherShed when running on Windows do not check the impersonation level of impersonation tokens which allows local users to impersonate a user at SecurityIdentify level and gain access to other users’ mounted encrypted volumes.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://packetstormsecurity.com/files/133877/Truecrypt-7-Privilege-Escalation.html http://www.openwall.com/lists/oss-security/2015/09/22/7 http://www.openwall.com/lists/oss-security/2015/09/24/3 https://code.google.com/p/google-security-research/issues/detail?id=537 https://veracrypt.codeplex.com/wikipage?title=Release20Notes

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8