XSS on Novell GroupWise WebAccess
02 October 2008
03 October 2008
Richard Brain of ProCheckUp Ltd (www.procheckup.com). ProCheckUp thanks Novell for working with us in such a professional manner.
Novell GroupWise WebAcces is vulnerable to a vanilla XSS (non-persistent) via POST requests. Although filtering takes place for GET requests, POST requests are ignored.
Vulnerable server-side script: '/gw/webacc',
Unfiltered parameter: 'User.id', 'Library.queryText'
Sucessfully tested on
Novell GroupWise WebAccess 7.0.3
Novell has confirmed the following versions to be affected by this vulnerability:
GroupWise 7.0, 7.01, 7.02x, 7.03
GroupWise 8.0 (shipping 8.0 release only)
An attacker may be able to cause execution of malicious scripting code in the browser of a victim user who visits a malicious third-party page. Such code would run within the security context of the target domain.
This type of attack can result in non-persistent defacement of the target site, or the redirection of confidential information (i.e.: session IDs, address books, emails) to unauthorised third parties.
Proof of concept:
As kindly requested by Novell, ProCheckUp will delay publication of the PoC details to allow GroupWise customers time to apply the recommended security patches.
How to fix:
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