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Incomplete blacklist vulnerability

Platform: ownCloud Server

Versions: 4.0.13, 4.5.8,

Date: 3/14/2013

Risk level: High

Description

Incomplete blacklist vulnerability in apps/contacts/import.php and apps/contacts/ajax/uploadimport.php in ownCloud before 4.0.13 and 4.5.8 allows an authenticated remote attacker to upload a .htaccess file and therefore the execution of arbitrary PHP code in a standard Apache installation.

Affected Software

  • ownCloud Server < 4.5.8 (CVE-2013-1850)
  • ownCloud Server < 4.0.13 (CVE-2013-1850)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 4.5.8 or 4.0.13.

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.

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