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Auth bypass in index.php

Platform: ownCloud Server

Versions: 4.0.6,

Date: 7/1/2012

Risk level: High

Description

ownCloud 4.0.6 and all versions previous to this doesn’t sufficiently verify whether a request to appconfig.php was sent by an admin, which allows remote authenticated users to edit app configurations.

NOTE: this can be leveraged by unauthenticated remote attackers using CVE-2012-4393.

Affected Software

  • ownCloud Server < 4.0.6 (CVE-2012-4752)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 4.0.7.

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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