Vulnerability in Ciphershed
CVE-2015-7359
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Ciphershed
- Idrix Veracrypt
- Microsoft Windows
- Truecrypt — versions 7.0
Weakness classification (CWE)
References
- code.google.com/p/google-security-research/issues/detail (Third Party Advisory, Issue Tracking)
- veracrypt.codeplex.com/wikipage (Release Notes, Vendor Advisory)
- packetstormsecurity.com/files/133877/Truecrypt-7-Privilege-Escalation.html (VDB Entry, Third Party Advisory)
- www.openwall.com/lists/oss-security/2015/09/24/3 (mailing-list, Mailing List, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2015/09/22/7 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-7359?
- CVE-2015-7359 is a high-severity vulnerability in Ciphershed, classified under CWE-264. CVSS score: 7.8/10. Published 2017-10-03.
- How severe is CVE-2015-7359?
- High severity. CVSS v3 base score is 7.8 out of 10.