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Information disclosure

Platform: ownCloud Server

Versions: 4.0.12,

Date: 2/20/2013

Risk level: Low


Due to the inclusion of the Amazon SDK testing suite an unauthenticated attacker is able to gain additional informations about the server including:

  • the PHP version
  • the cURL version
  • informations wether the following functions/modules are available:
    • SimpleXML
    • DOM
    • SPL
    • JSON
    • PCRE
    • File System Read/Write
    • OpenSSL
    • Zlib
    • APC
    • XCache
    • Memcache
    • Memcached
    • PDO
    • PDO-SQLite
    • SQLite 2
    • SQLite 3
  • the following PHP settings:
    • open_basedir
    • safe_mode
    • zend.enable_gc
  • the server architecture (32bit/64bit)

Affected Software

  • ownCloud Server < 4.0.12 (CVE-2013-0302)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 4.0.12.


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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