Vulnerability CVE-2010-3075
Published: 2010-09-17   Modified: 2012-02-13

Description:
EncFS before 1.7.0 encrypts multiple blocks by means of the CFB cipher mode with the same initialization vector, which makes it easier for local users to obtain sensitive information via calculations involving recovery of XORed data, as demonstrated by an attack on encrypted data in which the last block contains only one byte.

Type:

CWE-310

 (Cryptographic Issues)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
ARG0 -> Encfs 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=630460
http://www.vupen.com/english/advisories/2010/2414
http://www.openwall.com/lists/oss-security/2010/09/07/8
http://www.openwall.com/lists/oss-security/2010/09/06/1
http://www.openwall.com/lists/oss-security/2010/09/05/3
http://www.arg0.net/encfs
http://secunia.com/advisories/41478
http://secunia.com/advisories/41158
http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047825.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047798.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047794.html
http://archives.neohapsis.com/archives/fulldisclosure/2010-08/0316.html
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