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Insecure database password generator

Platform: ownCloud Server

Versions: 4.0.14, 4.5.9, 5.0.4,

Date: 4/11/2013

Risk level: Medium


Due to using “time()” as random source in the ownCloud installation routine, the entropy of the generated PostgreSQL database user password is very low and can be easily guessed.

This issue is inside the ownCloud setup routine and is not related to any PostgreSQL vulnerability.

Affected Software

  • ownCloud Server < 5.0.4 (CVE-2013-1941)
  • ownCloud Server < 4.5.9 (CVE-2013-1941)
  • ownCloud Server < 4.0.14 (CVE-2013-1941)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 5.0.4, 4.5.9 or 4.0.14.


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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