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Novell GroupWise WebAccess XSS ProCheckUp Research]
PR08-23: XSS on Novell GroupWise WebAccess
PR08-23: XSS on Novell GroupWise WebAccess

PR08-23: XSS on Novell GroupWise WebAccess

Vulnerability found: 2nd October 2008

Vendor contacted: 3rd October 2008

Advisory publicly released:  30th January 2009

Severity: Medium

Credits: Richard Brain of ProCheckUp Ltd (www.procheckup.com). 
ProCheckUp thanks Novell for working with us in such a professional manner.

Successfully tested on: Novell GroupWise WebAccess 7.0.3

Novell has confirmed the following versions to be affected by this

GroupWise 6.5x
GroupWise 7.0, 7.01, 7.02x, 7.03
GroupWise 8.0 (shipping 8.0 release only)

CVE reference: CVE-2009-0273


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'

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._


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.





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