PR08-23: XSS on Novell GroupWise WebAccess

2009-02-01T00:00:00
ID SECURITYVULNS:DOC:21276
Type securityvulns
Reporter Securityvulns
Modified 2009-02-01T00:00:00

Description

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 vulnerability:

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

Description:

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.

Consequences:

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.

Fix: http://www.novell.com/support/search.do?usemicrosite=true&searchString=7002321

References:

http://www.procheckup.com/vulnerability_manager http://en.wikipedia.org/wiki/Cross-site_scripting

Legal:

Copyright 2009 ProCheckUp Ltd. All rights reserved.

Permission is granted for copying and circulating this Bulletin to the Internet community for the purpose of alerting them to problems, if and only if the Bulletin is not changed or edited in any way, is attributed to ProCheckUp indicating this web page URL, and provided such reproduction and/or distribution is performed for non-commercial purposes.

Any other use of this information is prohibited. ProCheckUp is not liable for any misuse of this information by any third party. ProCheckUp is not responsible for the content of external Internet sites.