ownCloud server 9.1.3User enumeration with error messages
Information disclosure in email field dialog at sharing
Flooding logfiles with a 1 Bit BMP File
ownCloud desktop 2.2.3Local Code Injection
ownCloud mobile iOS 3.4.4Improper validation of certificates within the iOS application
Credentials potentially leaked to other configured ownCloud instance
Incomplete blacklist vulnerability (oC-SA-2013-026)
14th May 2013
Risk level: High
Incomplete blacklist vulnerability in ownCloud before 5.0.6 allows authenticated remote attackers to execute arbitrary PHP code by uploading a crafted file and accessing an uploaded PHP file.
Note: Successful exploitation requires that the /data/ directory is stored inside the webroot and a webserver that interprets .htaccess files (e.g. Apache)
- ownCloud Server < 5.0.6 (CVE-2013-2089)
It is recommended that all instances are upgraded to ownCloud Server 5.0.6.
The ownCloud team thanks the following people for their research and responsible disclosure of the above advisory:
- Lukas Reschke - ownCloud Inc. (firstname.lastname@example.org) - Vulnerability discovery and disclosure.