Grapecity DataDynamics Report Library 1.6.1871.61 Cross Site Scripting

2011.04.02
Credit: Dionach
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

Class Input Validation Error CVE Remote Yes Local No Published Mar 30 2011 11:00AM Credit Dionach Vulnerable Grapecity DataDynamics Report Library 1.6.1871.61 and earlier Grapecity's DataDynamics Report Library is prone to a cross-site scripting vulnerability because it fails to sufficiently sanitize user-supplied data. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks. Versions 1.6.1871.61 and earlier of the DataDynamics.Reports.Web class library are known to be vulnerable. Other versions may also be vulnerable. The vulnerability lies in unsafe calls to the CoreViewerInit.js and CoreController.js scripts when embedded in an ASP.NET handler such as the following: <% @ WebHandler language="C#" class="DataDynamics.Reports.Web.CoreHandler, DataDynamics.Reports.Web, Version=1.6.1871.61, Culture=neutral, PublicKeyToken=d557f2f30a260da2" codebehind="CoreHandler.cs" %> To exploit this issue, an attacker must entice an unsuspecting victim into following a malicious URI, such as the following: http://localhost/CoreHandler.ashx?dd:script=CoreViewerInit.js&reportName=<script>alert('XSS1!')</script>&uniqueId=<script>alert('XSS2!')</script># http://localhost/CoreHandler.ashx?dd:script=CoreController.js&uniqueId=<script>alert('XSS1!')</script>&traceLevel=<script>alert('XSS2!')</script># Grapecity report that version 1.6.2084.14 is not vulnerable. This is available from the following URL: http://www.gcpowertools.com/DownloadLatestVersion

References:

http://www.gcpowertools.com/DownloadLatestVersion
http://xforce.iss.net/xforce/xfdb/66545
http://www.securityfocus.com/bid/47015
http://www.securityfocus.com/archive/1/archive/1/517244/100/0/threaded
http://www.osvdb.org/71488
http://secunia.com/advisories/43953


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