CVE-2015-7358

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.

References

https://www.exploit-db.com/exploits/38403/

https://veracrypt.codeplex.com/wikipage?title=Release%20Notes

https://code.google.com/p/google-security-research/issues/detail?id=538

http://www.openwall.com/lists/oss-security/2015/09/24/3

http://www.openwall.com/lists/oss-security/2015/09/22/7

http://packetstormsecurity.com/files/133878/Truecrypt-7-Derived-Code-Windows-Drive-Letter-Symbolic-Link-Creation-Privilege-Escalation.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3