Privilege escalation in the contacts application - ownCloud

2013-04-19T18:06:11
ID OWNCLOUD:F45DC8095052D96CBF6ADFAF9FC774B7
Type owncloud
Reporter Lukas Reschke – ownCloud Inc. (lukas@owncloud.org) – Vulnerability discovery and disclosure.
Modified 2018-01-03T18:06:43

Description

Due to not properly checking the ownership of a single contact, an authenticated attacker is able to download contacts of other users in all ownCloud versions prior to 5.0.5 including the 4.5.x branch.

Note: Successful exploitation of this privilege escalation requires the "contacts" app to be enabled (enabled by default).

Affected Software

  • ownCloud Server < 5.0.5 (CVE-2013-1963)
  • ownCloud Server < 4.5.10 (CVE-2013-1963)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 5.0.5 or 4.5.10.

Acknowledgements

The ownCloud team thanks the following people for their research and responsible disclosure of the above advisory:

  • Lukas Reschke - ownCloud Inc. (lukas@owncloud.org) - Vulnerability discovery and disclosure.