Security Advisory

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Multiple XSS vulnerabilities (oC-SA-2013-008)

14th March 2013

Risk level: Medium

Description

Multiple cross-site scripting (XSS) vulnerabilities in ownCloud 4.5.8 and all prior versions (except 4.0.x) allow remote attackers to inject arbitrary web script or HTML via

  • the "quota" POST parameter to setquota.php in /core/settings/ajax/
    • Commits: 2364c79 (stable45)
    • Risk: Low
    • Note: Successful exploitation of this stored XSS requires administrator privileges.
  • the group input field to settings.php
    • Commits: 4cff6df (stable45)
    • Risk: Low
    • Note: Successful exploitation of this DOM based self XSS requires group admin privileges.
  • the share with input field
    • Commits: 7b0a8f4 (stable45)
    • Risk: Low
    • Note: Successful exploitation of this DOM based self XSS requires group admin privileges.

Affected Software

  • ownCloud Server < 4.5.8 (CVE-2013-1822)

Action Taken

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

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.