Open-Xchange Security Advisory 2015-02-12

[Martin Heiland <martin.heiland@xxxxxxxxxxxxxxxx>]

Product: Open-Xchange Server 6 / OX AppSuite
Vendor: Open-Xchange GmbH

Internal reference: 35889 (Bug ID)
Vulnerability type: Information Exposure (CWE-200)
Vulnerable version: 7.6.1 and earlier
Vulnerable component: backend
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed version: 7.4.2-rev42, 7.6.0-rev36, 7.6.1-rev14
Vendor notification: 2014-12-17
Solution date: 2015-01-13
CVE reference: CVE-2014-9466
CVSSv2: 6.0 
(AV:N/AC:M/Au:S/C:P/I:N/A:N/E:F/RL:U/RC:C/CDP:MH/TD:H/CR:M/IR:ND/AR:ND)

Vulnerability Details:
Publications allow sharing files with external data consumers. Access to those 
is secured with a random hash and publications allow access to the shared 
directory or file only. However, since the folder identifier has not been 
properly taken into consideration when calculating permissions, a user that 
obtained access to the publication is able to access other files which are not 
intentionally published by the owner.

Risk:
External users that have valid access to a publication may access files that 
are not intended to be shared with them.

Solution:
Users should update to the latest patch releases 7.4.2-rev42, 7.6.0-rev36 and 
7.6.1-rev14 (or later).