An issue was discovered in Open-Xchange OX AppSuite before 7.8.0-rev27. The "defer" servlet offers to redirect a client to a specified URL. Since some checks were missing, arbitrary URLs could be provided as redirection target. Users can be tricked to follow a link to a trustworthy domain but end up at an unexpected service later on. This vulnerability can be used to prepare and enhance phishing attacks.
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
Link | Tags |
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http://packetstormsecurity.com/files/137187/Open-Xchange-OX-AppSuite-7.8.0-XSS-Open-Redirect.html | vdb entry third party advisory |
http://www.securityfocus.com/archive/1/538481/100/0/threaded | mailing list |